Difference between revisions of "Passwordless SSH"
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| Line 16: | Line 16: | ||
*<code>cd /.ssh</code> | *<code>cd /.ssh</code> | ||
*<code>/usr/lib/vmware/openssh/bin/ssh-keygen -t rsa -b 4096</code> | *<code>/usr/lib/vmware/openssh/bin/ssh-keygen -t rsa -b 4096</code> | ||
| − | |||
*<code>cat id_rsa.pub | ssh root@ESXi1 'cat >> /etc/ssh/keys-root/authorized_keys'</code> | *<code>cat id_rsa.pub | ssh root@ESXi1 'cat >> /etc/ssh/keys-root/authorized_keys'</code> | ||
| − | |||
| − | |||
*<code>cp /.ssh/* /vmfs/volumes/Admin/Utilities/ssl/ESXi1/keys</code> | *<code>cp /.ssh/* /vmfs/volumes/Admin/Utilities/ssl/ESXi1/keys</code> | ||
| + | *<code>vi /etc/rc.local.d/local.sh</code> | ||
| + | |||
| + | mkdir /.ssh | ||
| + | |||
| + | cp /vmfs/volumes/Admin/Utilities/ssl/ESXi1/keys/* /.ssh | ||
| + | |||
| + | *<code>/sbin/auto-backup.sh</code> | ||
====ESXi1==== | ====ESXi1==== | ||
| Line 30: | Line 34: | ||
*<code>cd /.ssh</code> | *<code>cd /.ssh</code> | ||
*<code>/usr/lib/vmware/openssh/bin/ssh-keygen -t rsa -b 4096</code> | *<code>/usr/lib/vmware/openssh/bin/ssh-keygen -t rsa -b 4096</code> | ||
| − | |||
*<code>cat id_rsa.pub | ssh root@ESXi0 'cat >> /etc/ssh/keys-root/authorized_keys'</code> | *<code>cat id_rsa.pub | ssh root@ESXi0 'cat >> /etc/ssh/keys-root/authorized_keys'</code> | ||
| − | |||
| − | |||
*<code>cp /.ssh/* /vmfs/volumes/Admin/Utilities/ssl/ESXi0/keys</code> | *<code>cp /.ssh/* /vmfs/volumes/Admin/Utilities/ssl/ESXi0/keys</code> | ||
| + | *<code>vi /etc/rc.local.d/local.sh</code> | ||
| + | |||
| + | mkdir /.ssh | ||
| + | |||
| + | cp /vmfs/volumes/Admin/Utilities/ssl/ESXi0/keys/* /.ssh | ||
| + | |||
| + | *<code>/sbin/auto-backup.sh</code> | ||
| − | ==== On Both Servers ==== | + | ====On Both Servers==== |
| + | *<code>chmod +t /etc/ssh/keys-root/authorized_keys</code> | ||
*<code>vi /etc/ssh/sshd_config</code> | *<code>vi /etc/ssh/sshd_config</code> | ||
*(Ensure the following items are in the file) | *(Ensure the following items are in the file) | ||
Revision as of 23:58, 6 July 2020
These instructions assume 2 ESXi servers: ESXi0 & ESXi1
Both of these servers have a datastore named Admin for Administrative stuff and a Folder named Utilities for storing useful things.
ESXi to ESXi
Source: How to SSH between ESXi 6.0U2 hosts without providing a password
The following 2 sections are basically lists of Copy-Pasta commands for each server.
ESXi0
mkdir /vmfs/volumes/Admin/Utilities/sslmkdir /vmfs/volumes/Admin/Utilities/ssl/ESXi1mkdir /vmfs/volumes/Admin/Utilities/ssl/ESXi1/keysmkdir /.sshcd /.ssh/usr/lib/vmware/openssh/bin/ssh-keygen -t rsa -b 4096cat id_rsa.pub | ssh root@ESXi1 'cat >> /etc/ssh/keys-root/authorized_keys'cp /.ssh/* /vmfs/volumes/Admin/Utilities/ssl/ESXi1/keysvi /etc/rc.local.d/local.sh
mkdir /.ssh
cp /vmfs/volumes/Admin/Utilities/ssl/ESXi1/keys/* /.ssh
/sbin/auto-backup.sh
ESXi1
mkdir /vmfs/volumes/Admin/Utilities/sslmkdir /vmfs/volumes/Admin/Utilities/ssl/ESXi0mkdir /vmfs/volumes/Admin/Utilities/ssl/ESXi0/keysmkdir /.sshcd /.ssh/usr/lib/vmware/openssh/bin/ssh-keygen -t rsa -b 4096cat id_rsa.pub | ssh root@ESXi0 'cat >> /etc/ssh/keys-root/authorized_keys'cp /.ssh/* /vmfs/volumes/Admin/Utilities/ssl/ESXi0/keysvi /etc/rc.local.d/local.sh
mkdir /.ssh
cp /vmfs/volumes/Admin/Utilities/ssl/ESXi0/keys/* /.ssh
/sbin/auto-backup.sh
On Both Servers
chmod +t /etc/ssh/keys-root/authorized_keysvi /etc/ssh/sshd_config- (Ensure the following items are in the file)
PermitRootLogin yes UsePAM yes # only use PAM challenge-response (keyboard-interactive) PasswordAuthentication no
/etc/init.d/SSH restart
At this point, you should be able to SSH from one to the other without needing to enter a password.
