Category Archive: Linux

Jan 04 2017

Solve nagios plugin not reporting data

I’ve decided to use this plugin, for network card monitoring (for Linux) Details :

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Aug 19 2016

Solve ssh_exchange_identification connection closed by remote host

I’ve encountered this error message on a CentOS 7 system, the next day after i’ve enrolled it in freeIPA. Until then, SSH from it to other hosts worked fine.

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Mar 21 2016

Fix munin ip_ plugin showing network traffic from wrong IP

I’ve installed munin on a Ubuntu Server 12.04 yesterday. When checking the repots I’ve noticed 3 ip’s graphed, like the image below.

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Feb 01 2016

Sender verify failed cPANEL

If you have problems with your cPanel server not receiving mail from certain email addresses here is why :

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Dec 02 2015

WordPress plugin UpdraftPlus not working with XCache

I’ve upgraded from Ubuntu 12.04 to Ubuntu 14.04 and from ISPConfig to and moved my websites. When using UpdraftPlus plugin for FTP backup I’ve noticed that the backup is stuck at 0%.

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Sep 11 2015

ESXi info ERROR: wrong DISK_BACKUP_FORMAT thin when using ghettoVCB

Story : My main server had to be moved to a different datacenter. I’ve backed up my virtual machines using ghettoVCB to a NFS datastore. I’ve copied them to another server’s internal hard-drives from the NFS datastore.

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Jul 23 2015

HP Smart Array B320i on DL360e Gen8 and Ubuntu 14

In order to use the HP Smart Array B320i raid controller on Ubuntu 14, instead of the onboard SATA controller, you need to do the following steps. It worked for me.

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