Proxmox image installation on Hetzner servers

Put your server into rescue mode via the robot.

rescueimage

Select proxmox image under virtualization unsupported.

Vzdump backup options

Trouble is when running the standard vzdump backups in Proxmox the system load becomes unbearably high.

To avoid that from happening you can wrap this into a script but pass the parameters manually

Setting up keys on assembla.com

You will need to do this if you get an error or repo clone.

ssh-keygen -t rsa -C “max@kimambo.de”

Generating public/private rsa key pair. 
 xclip -sel clip < ~max/.ssh/id_rsa.pub

Removing memcached from zimbra install.

If for some reason you end up with memcached and zimbra proxy installed in a single host installation you will need to remove them, as leaving them there can only lead to problems.

Mailboxd error, zimbra wont start

Mailboxd not starting, if mysql is running then its probably a dns issue the mailbox cant find its own IP.

The cause is simply a DNS issue, so check your dns records if the error in the log looks something like this.

Hide your bind version

Allowing people to query your bind version can be a security risk.

Here is how you hide it.

vim /etc/named.conf or /etc/bind/named.conf (depending on your installation)

Search and replace multiple files e.g dns zone files

dns search and replace.

grep -lr -e ‘11.11.11.11’ /var/named |xargs sed -i ‘s/11.11.11.11/22.22.22.22./g’

will replace all occurences of 11.11.11.11 with 22.22.22.22

Keyless logins

Keyless logins 
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Generate ssh Keys

ssh-keygen -t rsa

Copy key to the other server for keyless login

ssh-copy-id -i ~max/.ssh/id_rsa.pub root@192.168.1.10