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<title>MultiChain Developer Q&amp;A - Recent questions tagged multiple-nodes</title>
<link>https://www.multichain.com/qa/tag/multiple-nodes</link>
<description>Powered by Question2Answer</description>
<item>
<title>Docker issue connecting to genesis node</title>
<link>https://www.multichain.com/qa/91737/docker-issue-connecting-to-genesis-node</link>
<description>&lt;p&gt;I have &quot;&lt;span style=&quot;color:#569cd6&quot;&gt;rpcallowip&lt;/span&gt;=0.0.0.0/0&quot; in my multichain.conf&lt;br&gt;&lt;br&gt;docker images are able to ping and netcat displays the necessary port on genesis image as open..&lt;br&gt;&lt;br&gt;Any idea on why they wont talk?&lt;/p&gt;&lt;p&gt;&lt;img alt=&quot;&quot; src=&quot;https://imgur.com/a/kdDiDPG&quot;&gt;&lt;a href=&quot;https://imgur.com/a/kdDiDPG&quot; rel=&quot;nofollow&quot;&gt;https://imgur.com/a/kdDiDPG&lt;/a&gt;&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/91737/docker-issue-connecting-to-genesis-node</guid>
<pubDate>Wed, 05 Mar 2025 23:08:00 +0000</pubDate>
</item>
<item>
<title>AWS Cloud9: Multichain Error: Couldn't connect to the seed node (Please help)</title>
<link>https://www.multichain.com/qa/52719/cloud9-multichain-error-couldnt-connect-seed-node-please-help</link>
<description>&lt;p&gt;I am using AWS - cloud9 virtual machines for creation a multichain blockchain instance.&lt;/p&gt;&lt;p&gt;Unable to connect two virtual machine.&amp;nbsp;&lt;br&gt;&lt;span style=&quot;font-size:13px&quot;&gt;Error: Couldn't connect to the seed node 172.31.77.199 on port 4351 - please check multichaind is running at that address and that your firewall settings allow incoming connections.&lt;/span&gt;&lt;br&gt;&lt;a target=&quot;_blank&quot; rel=&quot;nofollow&quot; href=&quot;https://ibb.co/Z8g3Qrt&quot;&gt;&lt;img alt=&quot;Please check this image file for explanation&quot; src=&quot;https://ibb.co/Z8g3Qrt&quot;&gt;&lt;/a&gt;&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/52719/cloud9-multichain-error-couldnt-connect-seed-node-please-help</guid>
<pubDate>Mon, 25 Apr 2022 15:37:27 +0000</pubDate>
</item>
<item>
<title>From address not found</title>
<link>https://www.multichain.com/qa/27291/from-address-not-found</link>
<description>&lt;p&gt;Hi&lt;/p&gt;&lt;p&gt;I have created a blockchain and did some asset transactions between the addresses, and added a node to the blockchain. Then tried to do the transaction on the new node ( The connected one), I got the following response.&lt;/p&gt;&lt;p&gt;Did I miss anything on the permission side or have to pass any command to import the address to the new node?&lt;/p&gt;&lt;p&gt;&amp;nbsp; The response is as below&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;ol style=&quot;list-style-type:none&quot;&gt;&lt;li&gt;&lt;span style=&quot;color:rgb(136, 19, 145)&quot;&gt;code&lt;/span&gt;:&amp;nbsp;&lt;span style=&quot;color:rgb(28, 0, 207)&quot;&gt;-709&lt;/span&gt;&lt;/li&gt;&lt;li&gt;&lt;span style=&quot;color:rgb(136, 19, 145)&quot;&gt;message&lt;/span&gt;:&amp;nbsp;&lt;span style=&quot;color:rgb(196, 26, 22)&quot;&gt;&lt;span style=&quot;color:rgb(34, 34, 34)&quot;&gt;&quot;&lt;/span&gt;from-address is not found in this wallet&lt;span style=&quot;color:rgb(34, 34, 34)&quot;&gt;&quot;&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;&lt;li&gt;&lt;span style=&quot;color:rgb(136, 19, 145)&quot;&gt;success&lt;/span&gt;:&amp;nbsp;&lt;span style=&quot;color:rgb(13, 34, 170)&quot;&gt;false&lt;/span&gt;&lt;/li&gt;&lt;/ol&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/27291/from-address-not-found</guid>
<pubDate>Mon, 25 Jan 2021 18:05:19 +0000</pubDate>
</item>
<item>
<title>Doubts about Node Clustering</title>
<link>https://www.multichain.com/qa/20221/doubts-about-node-clustering</link>
<description>Hi, I have several questions about node grouping at Multichain.&lt;br /&gt;
&lt;br /&gt;
Reading the documentation on this topic, I understand that we must manually add the address that is generated in the main node, that also applies to transactions of the addresses? We need to import manually the transactions on the replica node?&lt;br /&gt;
&lt;br /&gt;
For example; the cluster has two nodes, one main and another replica for backup if the first fails, in the event that the first node fails and the second is used as a backup, if the addresses are imported in the replica node the transactions will also be?&lt;br /&gt;
&lt;br /&gt;
Another question, if I have a cluster of nodes and the main node goes down, then I must manually connect the replica node from my custom API created in PHP?&lt;br /&gt;
&lt;br /&gt;
First of all, Thanks</description>
<guid isPermaLink="true">https://www.multichain.com/qa/20221/doubts-about-node-clustering</guid>
<pubDate>Fri, 15 May 2020 15:46:20 +0000</pubDate>
</item>
<item>
<title>multichain connecting seed node issue.</title>
<link>https://www.multichain.com/qa/18098/multichain-connecting-seed-node-issue</link>
<description>&lt;p&gt;Hii there&lt;/p&gt;&lt;p&gt;I am new to multichain as I am able to connect second node through the same system but when i am trying to connect it through another system I get an error&lt;/p&gt;&lt;p&gt;&lt;strong&gt;&quot;Couldn't connect to the seed node id: on port *** -please check multichain is running at the same address and that your firewall settings allow the incoming connection.&quot;&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;I have opened the port in both the systems. closed the firewall too.but then also I am getting the same issue.&lt;/p&gt;&lt;p&gt;please if anyone can help on this.&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/18098/multichain-connecting-seed-node-issue</guid>
<pubDate>Mon, 17 Feb 2020 09:09:04 +0000</pubDate>
</item>
<item>
<title>cant connect nodes</title>
<link>https://www.multichain.com/qa/16749/cant-connect-nodes</link>
<description>Ran through the MultiChain getting started guide and got stuck connecting my nodes in Google Cloud; what am I doing wrong?&lt;br /&gt;
&lt;br /&gt;
node: gravid1&lt;br /&gt;
&lt;br /&gt;
Welcome to Ubuntu 16.04.6 LTS (GNU/Linux 4.15.0-1049-gcp x86_64)&lt;br /&gt;
&amp;nbsp;* Documentation: &amp;nbsp;&lt;a href=&quot;https://help.ubuntu.com&quot; rel=&quot;nofollow&quot;&gt;https://help.ubuntu.com&lt;/a&gt;&lt;br /&gt;
&amp;nbsp;* Management: &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;a href=&quot;https://landscape.canonical.com&quot; rel=&quot;nofollow&quot;&gt;https://landscape.canonical.com&lt;/a&gt;&lt;br /&gt;
&amp;nbsp;* Support: &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;a href=&quot;https://ubuntu.com/advantage&quot; rel=&quot;nofollow&quot;&gt;https://ubuntu.com/advantage&lt;/a&gt;&lt;br /&gt;
0 packages can be updated.&lt;br /&gt;
0 updates are security updates.&lt;br /&gt;
The programs included with the Ubuntu system are free software;&lt;br /&gt;
the exact distribution terms for each program are described in the&lt;br /&gt;
individual files in /usr/share/doc/*/copyright.&lt;br /&gt;
Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by&lt;br /&gt;
applicable law.&lt;br /&gt;
hectortorres5123@instance-3:~$&lt;br /&gt;
hectortorres5123@instance-3:~$ sudo -i&lt;br /&gt;
root@instance-3:~# passwd&lt;br /&gt;
Enter new UNIX password:&lt;br /&gt;
Retype new UNIX password:&lt;br /&gt;
passwd: password updated successfully&lt;br /&gt;
root@instance-3:~# cd /tmp&lt;br /&gt;
root@instance-3:/tmp# wget &lt;a href=&quot;https://www.multichain.com/download/multichain-2.0.3.tar.gz&quot; rel=&quot;nofollow&quot;&gt;https://www.multichain.com/download/multichain-2.0.3.tar.gz&lt;/a&gt;&lt;br /&gt;
--2019-11-16 14:01:13-- &amp;nbsp;&lt;a href=&quot;https://www.multichain.com/download/multichain-2.0.3.tar.gz&quot; rel=&quot;nofollow&quot;&gt;https://www.multichain.com/download/multichain-2.0.3.tar.gz&lt;/a&gt;&lt;br /&gt;
Resolving www.multichain.com (www.multichain.com)... 162.243.214.85&lt;br /&gt;
Connecting to www.multichain.com (www.multichain.com)|162.243.214.85|:443... connected.&lt;br /&gt;
HTTP request sent, awaiting response... 200 OK&lt;br /&gt;
Length: 24227320 (23M) [application/x-gzip]&lt;br /&gt;
Saving to: ‘multichain-2.0.3.tar.gz’&lt;br /&gt;
multichain-2.0.3.tar.g 100%[============================&amp;gt;] &amp;nbsp;23.10M &amp;nbsp;10.6MB/s &amp;nbsp;&amp;nbsp;&amp;nbsp;in 2.2s &amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;br /&gt;
2019-11-16 14:01:16 (10.6 MB/s) - ‘multichain-2.0.3.tar.gz’ saved [24227320/24227320]&lt;br /&gt;
root@instance-3:/tmp# tar -xvzf nultichain-2.0.3.tar.gz&lt;br /&gt;
tar (child): nultichain-2.0.3.tar.gz: Cannot open: No such file or directory&lt;br /&gt;
tar (child): Error is not recoverable: exiting now&lt;br /&gt;
tar: Child returned status 2&lt;br /&gt;
tar: Error is not recoverable: exiting now&lt;br /&gt;
root@instance-3:/tmp# tar -xvzf multichain-2.0.3.tar.gz&lt;br /&gt;
multichain-2.0.3/&lt;br /&gt;
multichain-2.0.3/multichain-util&lt;br /&gt;
multichain-2.0.3/multichain-cli&lt;br /&gt;
multichain-2.0.3/README.txt&lt;br /&gt;
multichain-2.0.3/multichaind&lt;br /&gt;
multichain-2.0.3/multichaind-cold&lt;br /&gt;
root@instance-3:/tmp# cd multichain-2.0.3&lt;br /&gt;
root@instance-3:/tmp/multichain-2.0.3# mv multichaind multichain-cli multichain-util /usr/local/bin&lt;br /&gt;
root@instance-3:/tmp/multichain-2.0.3# exit&lt;br /&gt;
logout&lt;br /&gt;
hectortorres5123@instance-3:~$&lt;br /&gt;
hectortorres5123@instance-3:~$ multichain-util create gravid1&lt;br /&gt;
MultiChain 2.0.3 Utilities (latest protocol 20011)&lt;br /&gt;
Blockchain parameter set was successfully generated.&lt;br /&gt;
You can edit it in /home/hectortorres5123/.multichain/gravid1/params.dat before running multichaind for the first time.&lt;br /&gt;
&lt;br /&gt;
To generate blockchain please run &amp;quot;multichaind gravid1 -daemon&amp;quot;.&lt;br /&gt;
hectortorres5123@instance-3:~$ multichaind gravid1 -daemon&lt;br /&gt;
&lt;br /&gt;
MultiChain 2.0.3 Daemon (Community Edition, latest protocol 20011)&lt;br /&gt;
&lt;br /&gt;
Starting up node...&lt;br /&gt;
&lt;br /&gt;
Looking for genesis block...&lt;br /&gt;
Genesis block found&lt;br /&gt;
&lt;br /&gt;
Other nodes can connect to this node using:&lt;br /&gt;
multichaind gravid1@10.128.0.4:8369&lt;br /&gt;
&lt;br /&gt;
Listening for API requests on port 8368 (local only - see rpcallowip setting)&lt;br /&gt;
&lt;br /&gt;
Node ready.&lt;br /&gt;
&lt;br /&gt;
hectortorres5123@instance-3:~$&lt;br /&gt;
hectortorres5123@instance-3:~$ multichaind multichaind gravid2@10.128.0.3:6461&lt;br /&gt;
&lt;br /&gt;
MultiChain 2.0.3 Daemon (Community Edition, latest protocol 20011)&lt;br /&gt;
&lt;br /&gt;
ERROR: Parameter set for blockchain multichaind is not complete.&lt;br /&gt;
&lt;br /&gt;
If you want to create new blockchain please run one of the following:&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichain-util create multichaind&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichain-util clone &amp;lt;old-blockchain-name&amp;gt; multichaind&lt;br /&gt;
&lt;br /&gt;
And rerun multichaind multichaind&lt;br /&gt;
&lt;br /&gt;
If you want to connect to existing blockchain please specify seed node:&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichaind multichaind@&amp;lt;seed-node-ip&amp;gt;&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichaind multichaind@&amp;lt;seed-node-ip&amp;gt;:&amp;lt;seed-node-port&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&lt;br /&gt;
&lt;br /&gt;
node: gravid2&lt;br /&gt;
&lt;br /&gt;
Welcome to Ubuntu 16.04.6 LTS (GNU/Linux 4.15.0-1049-gcp x86_64)&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;* Documentation: &amp;nbsp;&lt;a href=&quot;https://help.ubuntu.com&quot; rel=&quot;nofollow&quot;&gt;https://help.ubuntu.com&lt;/a&gt;&lt;br /&gt;
&amp;nbsp;* Management: &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;a href=&quot;https://landscape.canonical.com&quot; rel=&quot;nofollow&quot;&gt;https://landscape.canonical.com&lt;/a&gt;&lt;br /&gt;
&amp;nbsp;* Support: &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;a href=&quot;https://ubuntu.com/advantage&quot; rel=&quot;nofollow&quot;&gt;https://ubuntu.com/advantage&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;* Kata Containers are now fully integrated in Charmed Kubernetes 1.16!&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;Yes, charms take the Krazy out of K8s Kata Kluster Konstruction.&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;a href=&quot;https://ubuntu.com/kubernetes/docs/release-notes&quot; rel=&quot;nofollow&quot;&gt;https://ubuntu.com/kubernetes/docs/release-notes&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
0 packages can be updated.&lt;br /&gt;
0 updates are security updates.&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&lt;br /&gt;
&lt;br /&gt;
The programs included with the Ubuntu system are free software;&lt;br /&gt;
the exact distribution terms for each program are described in the&lt;br /&gt;
individual files in /usr/share/doc/*/copyright.&lt;br /&gt;
&lt;br /&gt;
Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by&lt;br /&gt;
applicable law.&lt;br /&gt;
&lt;br /&gt;
hectortorres5123@instance-2:~$ multichaind multichaind gravid1@10.128.0.4:8369&lt;br /&gt;
multichaind: command not found&lt;br /&gt;
hectortorres5123@instance-2:~$ multichaind multichaind gravid1@10.128.0.4:8369&lt;br /&gt;
multichaind: command not found&lt;br /&gt;
hectortorres5123@instance-2:~$ multichaind gravid1@10.128.0.4:8369&lt;br /&gt;
multichaind: command not found&lt;br /&gt;
hectortorres5123@instance-2:~$ multichaind multichaind gravid1@10.128.0.4:8369&lt;br /&gt;
multichaind: command not found&lt;br /&gt;
hectortorres5123@instance-2:~$ sudo -i&lt;br /&gt;
root@instance-2:~# password&lt;br /&gt;
No command 'password' found, did you mean:&lt;br /&gt;
&amp;nbsp;Command 'assword' from package 'assword' (universe)&lt;br /&gt;
password: command not found&lt;br /&gt;
root@instance-2:~# passwd&lt;br /&gt;
Enter new UNIX password:&lt;br /&gt;
Retype new UNIX password:&lt;br /&gt;
passwd: password updated successfully&lt;br /&gt;
root@instance-2:~# su&lt;br /&gt;
root@instance-2:~#&lt;br /&gt;
root@instance-2:~# cd /tmp&lt;br /&gt;
root@instance-2:/tmp# wget &lt;a href=&quot;https://www.multichain.com/download/multichain-2.0.3.tar.gz&quot; rel=&quot;nofollow&quot;&gt;https://www.multichain.com/download/multichain-2.0.3.tar.gz&lt;/a&gt;&lt;br /&gt;
--2019-11-16 14:07:49-- &amp;nbsp;&lt;a href=&quot;https://www.multichain.com/download/multichain-2.0.3.tar.gz&quot; rel=&quot;nofollow&quot;&gt;https://www.multichain.com/download/multichain-2.0.3.tar.gz&lt;/a&gt;&lt;br /&gt;
Resolving www.multichain.com (www.multichain.com)... 162.243.214.85&lt;br /&gt;
Connecting to www.multichain.com (www.multichain.com)|162.243.214.85|:443... connected.&lt;br /&gt;
HTTP request sent, awaiting response... 200 OK&lt;br /&gt;
Length: 24227320 (23M) [application/x-gzip]&lt;br /&gt;
Saving to: ‘multichain-2.0.3.tar.gz’&lt;br /&gt;
&lt;br /&gt;
multichain-2.0.3.tar.gz &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;100%[==========================================================================================================&amp;gt;] &amp;nbsp;23.10M &amp;nbsp;10.8MB/s &amp;nbsp;&amp;nbsp;&amp;nbsp;in 2.1s &amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;br /&gt;
&lt;br /&gt;
2019-11-16 14:07:51 (10.8 MB/s) - ‘multichain-2.0.3.tar.gz’ saved [24227320/24227320]&lt;br /&gt;
&lt;br /&gt;
root@instance-2:/tmp# tar -xvzf multichain-2.0.3.tar.gz&lt;br /&gt;
multichain-2.0.3/&lt;br /&gt;
multichain-2.0.3/multichain-util&lt;br /&gt;
multichain-2.0.3/multichain-cli&lt;br /&gt;
multichain-2.0.3/README.txt&lt;br /&gt;
multichain-2.0.3/multichaind&lt;br /&gt;
multichain-2.0.3/multichaind-cold&lt;br /&gt;
root@instance-2:/tmp# cd multichain-2.0.3&lt;br /&gt;
root@instance-2:/tmp/multichain-2.0.3# mv multichaind multichain-cli multichain-util /usr/local/bin&lt;br /&gt;
root@instance-2:/tmp/multichain-2.0.3# multichain-util create gravid2&lt;br /&gt;
&lt;br /&gt;
MultiChain 2.0.3 Utilities (latest protocol 20011)&lt;br /&gt;
&lt;br /&gt;
Blockchain parameter set was successfully generated.&lt;br /&gt;
You can edit it in /root/.multichain/gravid2/params.dat before running multichaind for the first time.&lt;br /&gt;
&lt;br /&gt;
To generate blockchain please run &amp;quot;multichaind gravid2 -daemon&amp;quot;.&lt;br /&gt;
root@instance-2:/tmp/multichain-2.0.3# multichaind gravid2 -daemon&lt;br /&gt;
&lt;br /&gt;
MultiChain 2.0.3 Daemon (Community Edition, latest protocol 20011)&lt;br /&gt;
&lt;br /&gt;
Starting up node...&lt;br /&gt;
&lt;br /&gt;
Looking for genesis block...&lt;br /&gt;
Genesis block found&lt;br /&gt;
&lt;br /&gt;
Other nodes can connect to this node using:&lt;br /&gt;
multichaind gravid2@10.128.0.3:6461&lt;br /&gt;
&lt;br /&gt;
Listening for API requests on port 6460 (local only - see rpcallowip setting)&lt;br /&gt;
&lt;br /&gt;
Node ready.&lt;br /&gt;
&lt;br /&gt;
root@instance-2:/tmp/multichain-2.0.3# multichaind multichaind gravid1@10.128.0.4:8369&lt;br /&gt;
&lt;br /&gt;
MultiChain 2.0.3 Daemon (Community Edition, latest protocol 20011)&lt;br /&gt;
&lt;br /&gt;
ERROR: Parameter set for blockchain multichaind is not complete.&lt;br /&gt;
&lt;br /&gt;
If you want to create new blockchain please run one of the following:&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichain-util create multichaind&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichain-util clone &amp;lt;old-blockchain-name&amp;gt; multichaind&lt;br /&gt;
&lt;br /&gt;
And rerun multichaind multichaind&lt;br /&gt;
&lt;br /&gt;
If you want to connect to existing blockchain please specify seed node:&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichaind multichaind@&amp;lt;seed-node-ip&amp;gt;&lt;br /&gt;
&amp;nbsp;&amp;nbsp;multichaind multichaind@&amp;lt;seed-node-ip&amp;gt;:&amp;lt;seed-node-port&amp;gt;&lt;br /&gt;
&lt;br /&gt;
root@instance-2:/tmp/multichain-2.0.3#</description>
<guid isPermaLink="true">https://www.multichain.com/qa/16749/cant-connect-nodes</guid>
<pubDate>Fri, 22 Nov 2019 03:35:26 +0000</pubDate>
</item>
<item>
<title>Two nodes on one host</title>
<link>https://www.multichain.com/qa/14465/two-nodes-on-one-host</link>
<description>Is there any way to run two nodes on one host just like bitcoin?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/14465/two-nodes-on-one-host</guid>
<pubDate>Wed, 19 Jun 2019 03:30:54 +0000</pubDate>
</item>
<item>
<title>Is it required to have more than one node?</title>
<link>https://www.multichain.com/qa/13624/is-it-required-to-have-more-than-one-node</link>
<description>Hi, in doc example is required to have 2 nodes. Can I have a blockchain with only one node? What is the difference one node or multiply nodes?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/13624/is-it-required-to-have-more-than-one-node</guid>
<pubDate>Mon, 29 Apr 2019 21:00:28 +0000</pubDate>
</item>
<item>
<title>Blockchain stops working with 3 nodes using a stream with 2M transactions</title>
<link>https://www.multichain.com/qa/13015/blockchain-stops-working-nodes-using-stream-transactions</link>
<description>&lt;p&gt;I have the following scenario:&lt;/p&gt;&lt;ul&gt;&lt;li&gt;1 node that created the blockchain and a stream, which I used to create a stream and add 2M items into it, with random off-chain content (images).&lt;/li&gt;&lt;li&gt;2 nodes that join the blockchain after all the data has been imported through the master node, so on&amp;nbsp;startup&amp;nbsp;they begin to catch up with the master node at their own pace.&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;At the very beginning when the 2 new joined nodes are initially catching up, I can issue commands to any of the 3 nodes using the&amp;nbsp;&lt;em&gt;multichain-&lt;/em&gt;&lt;em&gt;cli&lt;/em&gt;&amp;nbsp;tool. For instance, I send this command to the master node and I get the reply back immediately:&lt;/p&gt;&lt;blockquote&gt;&lt;p&gt;multichain-cli ipregister -rpcuser=multichainrpc -rpcpassword=m4lt1ch41nRpC! getaddresses&lt;br&gt;{&quot;method&quot;:&quot;getaddresses&quot;,&quot;params&quot;:[],&quot;id&quot;:&quot;85616894-1551974478&quot;,&quot;chain_name&quot;:&quot;ipregister&quot;}&lt;/p&gt;&lt;p&gt;[&lt;br&gt;&amp;nbsp; &amp;nbsp; &quot;1WTvECnAdMgvXDqMDQeiwXExCfvvMuHwq1HR7S&quot;&lt;br&gt;]&lt;/p&gt;&lt;/blockquote&gt;&lt;p&gt;However, at some point in time, when the volume of data being already synced up grows, the multichain-cli&amp;nbsp;tool stops responding for all the nodes, and as the volume of synced data still grows, the nodes start to degrade dramatically until they just do not respond to commands.&lt;/p&gt;&lt;p&gt;Both 2 nodes join the blockchain through the DNS name of the master and they&amp;nbsp;just subscribe to the stream to be able to find data by key, that's all.&lt;/p&gt;&lt;p&gt;Then I stop everything (without deleting the data) and restart first the master node. It starts to respond again to multichain-cli&amp;nbsp;commands. But when I start again the first of the 2 additional nodes, I start getting this from it:&lt;/p&gt;&lt;blockquote&gt;&lt;p&gt;Node started&lt;br&gt;mchn: Sending minimal parameter set to 174.16.60.237:8099&lt;br&gt;receive version message: /MultiChain:0.2.0.6/: version 70002, blocks=28632, us=174.16.138.178:50952, peer=1&lt;br&gt;Added time data, samples 2, offset +0 (+0 minutes)&lt;br&gt;mchn: Parameter set from peer=1 verified&lt;br&gt;Loading addresses from DNS seeds (could take a while)&lt;br&gt;0 addresses found from DNS seeds&lt;br&gt;dnsseed thread exit&lt;br&gt;socket sending timeout: 61s&lt;/p&gt;&lt;/blockquote&gt;&lt;p&gt;And then in the master:&lt;/p&gt;&lt;blockquote&gt;&lt;p&gt;Sending minimal parameter set to 174.16.138.178:50952&lt;br&gt;receive version message: /MultiChain:0.2.0.6/: version 70002, blocks=28627, us=174.16.60.237:8099, peer=7&lt;br&gt;Added time data, samples 3, offset +0 (+0 minutes)&lt;br&gt;mchn: Parameter set from peer=7 verified&lt;br&gt;ResendWalletTransactions()&lt;br&gt;Sending minimal parameter set to 174.16.138.178:8099&lt;br&gt;receive version message: /MultiChain:0.2.0.6/: version 70002, blocks=28627, us=174.16.60.237:58276, peer=12&lt;br&gt;mchn: Parameter set from peer=12 verified&lt;/p&gt;&lt;/blockquote&gt;&lt;p&gt;Clearly, the 2nd node degrades just after joining again the blockchain. If I join the 3rd node it gets even worse.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/13015/blockchain-stops-working-nodes-using-stream-transactions</guid>
<pubDate>Thu, 07 Mar 2019 16:26:18 +0000</pubDate>
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<item>
<title>how to create a node which can connect to an existing node .</title>
<link>https://www.multichain.com/qa/12754/how-to-create-a-node-which-can-connect-to-an-existing-node</link>
<description>how to create a node which can connect to an existing node . I want all the nodes to sync at the same time and all transactions should be present on all the nodes. In order to create a cluster of nodes for better reliability.&lt;br /&gt;
&lt;br /&gt;
Can you tell me how to clone a node and how two nodes will communicate to each other.?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/12754/how-to-create-a-node-which-can-connect-to-an-existing-node</guid>
<pubDate>Tue, 05 Feb 2019 17:51:26 +0000</pubDate>
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<item>
<title>Timeout downloading block from peer, disconnecting</title>
<link>https://www.multichain.com/qa/12623/timeout-downloading-block-from-peer-disconnecting</link>
<description>&lt;p&gt;Hi,&lt;/p&gt;&lt;p&gt;I have a master node with 900+ blocks. Now I try to connect a new node, but when it starts syncing up with the master, it disconnects after some blocks complaining about a timeout:&lt;/p&gt;&lt;blockquote&gt;&lt;p&gt;receive version message: /MultiChain:0.2.0.6/: version 70002, blocks=959, us=174.16.213.31:53738, peer=2&lt;br&gt;Added time data, samples 2, offset +0 (+0 minutes)&lt;br&gt;mchn: Parameter set from peer=2 verified&lt;br&gt;Pre-allocating up to position 0x100000 in rev00000.dat&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00f4c23c213136008518e74414f17605c024ad3cf34d81cb53f8130266ee815b&amp;nbsp; height=1&amp;nbsp; log2_work=9&amp;nbsp; tx=2&amp;nbsp; date=2019-01-28 08:48:07 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=0000b25e3031363046cc69e138f209868484bbd15f6fee3f0dc42b5f51be3565&amp;nbsp; height=2&amp;nbsp; log2_work=9.5849625&amp;nbsp; tx=3&amp;nbsp; date=2019-01-28 08:48:08 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;...&lt;/p&gt;&lt;p&gt;...&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00113d9451141fc321bc88e5bc2f2388580f683fa3c9af4705a754485c3fbdac&amp;nbsp; height=126&amp;nbsp; log2_work=14.988685&amp;nbsp; tx=1284&amp;nbsp; date=2019-01-28 14:10:10 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=005f0110f6d32bf8e68a9598dd7533852a30cff92ec65341e25e55149f976eff&amp;nbsp; height=127&amp;nbsp; log2_work=15&amp;nbsp; tx=1540&amp;nbsp; date=2019-01-28 14:10:14 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00f59a8a840365aa1c3bac5fe717753c07f4cf27f6e95926423531ab33488af8&amp;nbsp; height=128&amp;nbsp; log2_work=15.011227&amp;nbsp; tx=1760&amp;nbsp; date=2019-01-28 14:10:16 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;ResendWalletTransactions()&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=008a866cb66d2f98894fd98ebe2b7eb78f5d9ff5460d6e723ef0db38ba6757f2&amp;nbsp; height=129&amp;nbsp; log2_work=15.022368&amp;nbsp; tx=1908&amp;nbsp; date=2019-01-28 14:10:18 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00e7442c16a2008681791394d95966db86e5155cee8668ff25566c332953d6f0&amp;nbsp; height=130&amp;nbsp; log2_work=15.033423&amp;nbsp; tx=2015&amp;nbsp; date=2019-01-28 14:10:20 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=0012883f0df88e470804ec4f5aefe78fbbfd0ced34b02737a321bb496b0f63d2&amp;nbsp; height=131&amp;nbsp; log2_work=15.044394&amp;nbsp; tx=2112&amp;nbsp; date=2019-01-28 14:10:23 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00d26a69b99e592f5687a8704a217b87be3516f4f72dfdb80d734d939aa52663&amp;nbsp; height=132&amp;nbsp; log2_work=15.055282&amp;nbsp; tx=2273&amp;nbsp; date=2019-01-28 14:10:25 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00a163113a22b08250698cd44280b44e4a7f952ddf9dbb9aa33f88a8c57741d9&amp;nbsp; height=133&amp;nbsp; log2_work=15.066089&amp;nbsp; tx=2410&amp;nbsp; date=2019-01-28 14:10:27 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=006862bab537d132727e6abc9f1adef8e2520c9d26d5d1f5f727d7ab24f4e8b4&amp;nbsp; height=134&amp;nbsp; log2_work=15.076816&amp;nbsp; tx=2521&amp;nbsp; date=2019-01-28 14:10:28 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=00c77418d1248a4118363b5df2c620023d2e3fd28ed6b83f3366eeed99a04118&amp;nbsp; height=135&amp;nbsp; log2_work=15.087463&amp;nbsp; tx=2613&amp;nbsp; date=2019-01-28 14:10:30 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;ResendWalletTransactions()&lt;br&gt;UpdateTip:&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; new best=0081d6e61d0b716b1b318ddd48260d1c620be5b100fdad271e2732311fe7b049&amp;nbsp; height=136&amp;nbsp; log2_work=15.098032&amp;nbsp; tx=2789&amp;nbsp; date=2019-01-28 14:10:33 progress=1.000000&amp;nbsp; cache=0&lt;br&gt;Timeout downloading block 00e9dfcfc91067a07d32a80e241d944089d33a5aeea12335422970dd270dcbe1 from peer=2, disconnecting&lt;/p&gt;&lt;/blockquote&gt;&lt;p&gt;What is this timeout about? Why does&amp;nbsp;it happen? Is there any parameter that allows me to increase such timeout?&lt;/p&gt;&lt;p&gt;Thanks!&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/12623/timeout-downloading-block-from-peer-disconnecting</guid>
<pubDate>Wed, 30 Jan 2019 09:24:29 +0000</pubDate>
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<item>
<title>Can't connect two nodes on different networks</title>
<link>https://www.multichain.com/qa/11065/cant-connect-two-nodes-on-different-networks</link>
<description>&lt;p&gt;I'm creating a chain using multichain-util, setting a username and password in multichain.conf, and&amp;nbsp;then starting the daemon using &lt;span style=&quot;background-color:#D3D3D3&quot;&gt;multichaind chainname -rpcallowip=0.0.0.0/0 -daemon.&lt;/span&gt;&lt;/p&gt;&lt;p&gt;I receive the following output:&lt;/p&gt;&lt;p&gt;Starting up node...&lt;/p&gt;&lt;p&gt;Other nodes can connect to this node using:&lt;/p&gt;&lt;p&gt;multichaind chainname@172.20.10.0:7217&lt;/p&gt;&lt;p&gt;Node ready.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;When trying to use&amp;nbsp;&lt;span style=&quot;background-color:#D3D3D3&quot;&gt;multichaind chainname@172.20.10.0:7217 -rpcport=7216 -rpcuser=multichainrpc -multichainpass=pass&lt;/span&gt; from another computer I receive:&lt;/p&gt;&lt;p&gt;Error: Couldn't connect to the seed node&amp;nbsp;172.20.10.0 on port 7217 - please check multichaind is running at that address and that your firewall settings allow incoming connections.&lt;/p&gt;&lt;p&gt;I have tried turning firewalls off to no success. I can create two nodes and connect them successfully when they are using the same internet connection, but can't find what the problem is here.&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/11065/cant-connect-two-nodes-on-different-networks</guid>
<pubDate>Fri, 14 Sep 2018 14:46:38 +0000</pubDate>
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<item>
<title>Cannot connect to Multichain ran inside Docker</title>
<link>https://www.multichain.com/qa/11038/cannot-connect-to-multichain-ran-inside-docker</link>
<description>&lt;p&gt;I have created a Dockerfile to run a blockchain within a Docker container. The chain is created successfully, and multichaind ran, which gives an output of:&amp;nbsp;&lt;/p&gt;&lt;p&gt;&lt;span style=&quot;background-color:#D3D3D3&quot;&gt;Other nodes can connect to this node using:&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span style=&quot;background-color:#D3D3D3&quot;&gt;multichaind dockChain2@172.17.0.2:5001&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span style=&quot;background-color:#D3D3D3&quot;&gt;Listening for API requests on port 5002&amp;nbsp;(local only - see rpcallowip setting)&lt;/span&gt;&lt;/p&gt;&lt;p&gt;When trying to connect from another node the error received is -&amp;nbsp;&lt;/p&gt;&lt;p&gt;Error: Couldn't connect to the seed node 172.17.0.2 on port 5001 - please check multichaind is running at that address and that your firewall settings allow incoming connections.&lt;/p&gt;&lt;p&gt;I have tried exposing port 5001 in docker, and using &lt;span style=&quot;background-color:#D3D3D3&quot;&gt;docker ps -a&lt;/span&gt; shows&amp;nbsp;0.0.0.0:5001-&amp;gt;5001/tcp under PORTS.&amp;nbsp;&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/11038/cannot-connect-to-multichain-ran-inside-docker</guid>
<pubDate>Thu, 13 Sep 2018 14:07:04 +0000</pubDate>
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<item>
<title>Seeder for the network</title>
<link>https://www.multichain.com/qa/9477/seeder-for-the-network</link>
<description>&lt;p&gt;I want to set up a DNS seed for my multichain network, since I don't want to specify the IP to which a new node should connect every time I spin up a new node.&lt;/p&gt;&lt;p&gt;Do I have to use a seeder like&amp;nbsp;&lt;a rel=&quot;nofollow&quot; href=&quot;https://github.com/sipa/bitcoin-seeder&quot;&gt;https://github.com/sipa/bitcoin-seeder&lt;/a&gt; to be running on my DNS server or?&lt;br&gt;I know it's not a Multichain-related question, but I could use any help/tutorial link/hint that you could provide!&amp;nbsp;&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;P.S. I'm doing my thesis using Multichain, so you will be helping a student in need! :)&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/9477/seeder-for-the-network</guid>
<pubDate>Wed, 25 Apr 2018 18:58:41 +0000</pubDate>
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<item>
<title>Stopping A Node</title>
<link>https://www.multichain.com/qa/9178/stopping-a-node</link>
<description>This might seem like a dumb question but I just want to be sure. So I have two nodes connected to each other on the same server. The first node is the one that created the blockchain. If I stop it using the command:&lt;br /&gt;
&lt;br /&gt;
&amp;gt;sudo multichain-cli [chain-name] stop&lt;br /&gt;
&lt;br /&gt;
Will that automatically kill all the other nodes created afterwards that are connected to the blockchain as well? Also is it possible to stop one node without stopping the entire blockchain and the other nodes connected to it?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/9178/stopping-a-node</guid>
<pubDate>Sun, 01 Apr 2018 12:34:28 +0000</pubDate>
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<item>
<title>Can't connect cli from other connected node</title>
<link>https://www.multichain.com/qa/9018/cant-connect-cli-from-other-connected-node</link>
<description>Hi,&lt;br /&gt;
&lt;br /&gt;
I'm trying to connect CLI from connected node, am getting the following error.&lt;br /&gt;
&lt;br /&gt;
&lt;a href=&quot;https://ibb.co/n3nMuc&quot; rel=&quot;nofollow&quot;&gt;https://ibb.co/n3nMuc&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
(Please check the above link, attached the screen shot)&lt;br /&gt;
&lt;br /&gt;
Is there any parameter should pass along with the command. (multichain-cli chain1 )&lt;br /&gt;
&lt;br /&gt;
Thanks &lt;br /&gt;
&lt;br /&gt;
Shiva,P</description>
<guid isPermaLink="true">https://www.multichain.com/qa/9018/cant-connect-cli-from-other-connected-node</guid>
<pubDate>Wed, 21 Mar 2018 11:13:21 +0000</pubDate>
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<item>
<title>Sending signed transaction in to several nodes at once</title>
<link>https://www.multichain.com/qa/7726/sending-signed-transaction-in-to-several-nodes-at-once</link>
<description>And what will happen, if I sign a transaction outside of Multichain, and then send it simultaneously in to several nodes. It will makes a double spending as well or not ?&lt;br /&gt;
&lt;br /&gt;
&amp;nbsp;&lt;br /&gt;
&lt;br /&gt;
I'm asking because interested to make a scenario, when several Multichain nodes working across the globe, and users connects to the less loaded node. On a round-robin scenario basis. &lt;br /&gt;
&lt;br /&gt;
But what will happens, in case if a &amp;quot;bad-guy&amp;quot; send same signed transactions to all of this nodes. It will lead to a double-spend as well, or Multichain will take the first transaction only and cancel all others ?&lt;br /&gt;
&lt;br /&gt;
Thank you!</description>
<guid isPermaLink="true">https://www.multichain.com/qa/7726/sending-signed-transaction-in-to-several-nodes-at-once</guid>
<pubDate>Thu, 30 Nov 2017 14:02:42 +0000</pubDate>
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<item>
<title>Transferring partially signed transactions</title>
<link>https://www.multichain.com/qa/7181/transferring-partially-signed-transactions</link>
<description>Hi guys,&lt;br /&gt;
&lt;br /&gt;
I'm interesting in multisig and have a question about it.&lt;br /&gt;
&lt;br /&gt;
Is there any built in way for transferring partially signed transactions between participants? Or what is the recommended approach for doing this?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/7181/transferring-partially-signed-transactions</guid>
<pubDate>Tue, 17 Oct 2017 11:09:00 +0000</pubDate>
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<item>
<title>retrieve a list of pending rawtransactions to be signed</title>
<link>https://www.multichain.com/qa/6589/retrieve-a-list-of-pending-rawtransactions-to-be-signed</link>
<description>I'm trying to wrap my head around multisignature addresses. &amp;nbsp;In the terminal it's very easy, but the thing I don't understand yet is how, for example, an app running on a second server is supposed to retrieve the pending transactions that needs to be signed.&lt;br /&gt;
&lt;br /&gt;
Is there a way to retrieve these transactions?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/6589/retrieve-a-list-of-pending-rawtransactions-to-be-signed</guid>
<pubDate>Fri, 08 Sep 2017 10:04:04 +0000</pubDate>
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<item>
<title>Couldn't connect to the seed node error on Ubuntu AWS EC2</title>
<link>https://www.multichain.com/qa/6375/couldnt-connect-to-the-seed-node-error-on-ubuntu-aws-ec2</link>
<description>I have our chain running for a few weeks now with 4 nodes. I can fire up new nodes on my AWS account and be connected and running in a few minutes. I can do this repeatedly with zero issues. I've launched, connected and mined with hundreds of testing nodes by now.&lt;br /&gt;
&lt;br /&gt;
However, when ANY other server outside my AWS account tries to connect to our chain they get the same problem here:&lt;br /&gt;
&lt;br /&gt;
&lt;a href=&quot;https://www.multichain.com/qa/3381/couldnt-connect-to-the-seed-node-error-on-ubuntu-aws-ec2&quot; rel=&quot;nofollow&quot;&gt;https://www.multichain.com/qa/3381/couldnt-connect-to-the-seed-node-error-on-ubuntu-aws-ec2&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
I ran multichaind -debug=mchn -debug=mchnminor -debug=net on our chain but I don't see anything in the debug.log file at the timestamp when I try to connect.&lt;br /&gt;
&lt;br /&gt;
Here's all I see around that time stamp on the debug.log&lt;br /&gt;
&lt;br /&gt;
2017-08-26 19:03:42 (8 bytes) peer=1&lt;br /&gt;
2017-08-26 19:03:42 mchn: RECV: pong, peer=1&lt;br /&gt;
2017-08-26 19:03:42 received: pong (8 bytes) peer=1&lt;br /&gt;
2017-08-26 19:03:43 mchn: RECV: ping, peer=2&lt;br /&gt;
2017-08-26 19:03:43 received: ping (8 bytes) peer=2&lt;br /&gt;
2017-08-26 19:03:43 sending: pong mchn: SEND: pong&lt;br /&gt;
2017-08-26 19:03:43 (8 bytes) peer=2&lt;br /&gt;
2017-08-26 19:03:43 sending: ping mchn: SEND: ping&lt;br /&gt;
2017-08-26 19:03:43 (8 bytes) peer=2&lt;br /&gt;
2017-08-26 19:03:43 mchn: RECV: pong, peer=2&lt;br /&gt;
2017-08-26 19:03:43 received: pong (8 bytes) peer=2&lt;br /&gt;
2017-08-26 19:03:44 mchn: RECV: ping, peer=3&lt;br /&gt;
2017-08-26 19:03:44 received: ping (8 bytes) peer=3&lt;br /&gt;
2017-08-26 19:03:44 sending: pong mchn: SEND: pong&lt;br /&gt;
2017-08-26 19:03:44 (8 bytes) peer=3&lt;br /&gt;
2017-08-26 19:03:44 sending: ping mchn: SEND: ping&lt;br /&gt;
2017-08-26 19:03:44 (8 bytes) peer=3&lt;br /&gt;
2017-08-26 19:03:44 mchn: RECV: pong, peer=3&lt;br /&gt;
2017-08-26 19:03:44 received: pong (8 bytes) peer=3&lt;br /&gt;
2017-08-26 19:03:52 mchn: RECV: ping, peer=1&lt;br /&gt;
2017-08-26 19:03:52 received: ping (8 bytes) peer=1&lt;br /&gt;
2017-08-26 19:03:52 sending: pong mchn: SEND: pong&lt;br /&gt;
2017-08-26 19:03:52 (8 bytes) peer=1&lt;br /&gt;
2017-08-26 19:03:52 sending: ping mchn: SEND: ping&lt;br /&gt;
2017-08-26 19:03:52 (8 bytes) peer=1&lt;br /&gt;
2017-08-26 19:03:52 mchn: RECV: pong, peer=1&lt;br /&gt;
2017-08-26 19:03:52 received: pong (8 bytes) peer=1&lt;br /&gt;
2017-08-26 19:03:53 mchn: RECV: ping, peer=2&lt;br /&gt;
2017-08-26 19:03:53 received: ping (8 bytes) peer=2&lt;br /&gt;
2017-08-26 19:03:53 sending: pong mchn: SEND: pong&lt;br /&gt;
2017-08-26 19:03:53 (8 bytes) peer=2&lt;br /&gt;
2017-08-26 19:03:53 sending: ping mchn: SEND: ping&lt;br /&gt;
2017-08-26 19:03:53 (8 bytes) peer=2&lt;br /&gt;
&lt;br /&gt;
Could this be something simple I'm using in security settings on AWS? I can connect nodes from inside my own AWS account but no one else can connect. All get the same error. The ports are wide open too.&lt;br /&gt;
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Ideas?</description>
<guid isPermaLink="true">https://www.multichain.com/qa/6375/couldnt-connect-to-the-seed-node-error-on-ubuntu-aws-ec2</guid>
<pubDate>Sat, 26 Aug 2017 19:06:00 +0000</pubDate>
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<item>
<title>Can transactions still be signed by addresses on a down server?</title>
<link>https://www.multichain.com/qa/5160/can-transactions-still-be-signed-by-addresses-on-down-server</link>
<description>Hi, I'm wondering that, in case of a server downtime, can transactions still be signed/sent from addresses that are generated on the down server?&lt;br /&gt;
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Thanks!</description>
<guid isPermaLink="true">https://www.multichain.com/qa/5160/can-transactions-still-be-signed-by-addresses-on-down-server</guid>
<pubDate>Wed, 24 May 2017 01:28:09 +0000</pubDate>
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<item>
<title>Transact on another node</title>
<link>https://www.multichain.com/qa/4958/transact-on-another-node</link>
<description>Hi,&lt;br /&gt;
&lt;br /&gt;
Can I make a transaction on a different node from which the transacting address exists? For instance, two nodes A and B each with addresses having some assets. Can i transfer an address's assets from node B if the address was generated in node A.&lt;br /&gt;
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I know the answer is No and one reason why is because the private key for the addresses are stored on their node. I am looking for additional reasons if there is as well as how to go around this for instance if I have the address, public key and private key copied to a file, and the node goes down, can i transfer the assets owned by that address from a different node?&lt;br /&gt;
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Thanks.&lt;br /&gt;
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R</description>
<guid isPermaLink="true">https://www.multichain.com/qa/4958/transact-on-another-node</guid>
<pubDate>Wed, 03 May 2017 04:58:18 +0000</pubDate>
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<item>
<title>Maximum (recommended) nodes on a server</title>
<link>https://www.multichain.com/qa/4911/maximum-recommended-nodes-on-a-server</link>
<description>&lt;p&gt;&lt;span style=&quot;font-family:helvetica,arial,sans-serif; font-size:20px&quot;&gt;I know&amp;nbsp;that if you use the&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family:courier new,courier,monospace; font-size:24px&quot;&gt;datadir&amp;nbsp;&lt;/span&gt;&lt;span style=&quot;font-family:helvetica,arial,sans-serif; font-size:20px&quot;&gt;option and a different JSON-RPC port and peer-to-peer port for each node you can run multiple nodes on a single machine. Is there a &lt;em&gt;recommended&lt;/em&gt; limit to the number of nodes one can or should&amp;nbsp;run on a single machine before the performance starts to degrade? I can appreciate that this may be subjective because it is likely based on the specs of the machine and various other factors,&amp;nbsp;but I'm wondering if&amp;nbsp;you guys have tested this at all. Thanks!&lt;/span&gt;&lt;/p&gt;</description>
<guid isPermaLink="true">https://www.multichain.com/qa/4911/maximum-recommended-nodes-on-a-server</guid>
<pubDate>Thu, 27 Apr 2017 16:58:56 +0000</pubDate>
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