Linux

Email notification on SSH login using PAM

There are cases where you are interested in getting a email message on every successful login through SSH. This could have been solved by adding a simple line in .bash_profile for every user, but this solution does not catch all SSH logins. The preferred way of doing it is by using PAM and a custom […]

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Linux

Reinstall grub using Live-CDROM

After a failed upgrade to Ubuntu 14.04 the server complains about missing disk error. The solution was to reinstall grub and reboot. The procedure is loosely described here. Boot your Ubuntu server using av Live CDROM you have downloaded from Ubuntu. Choose to Test Ubuntu since installation is not the desired option at this time. […]

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Linux

Install HAProxy 1.8 on CentOS 7

This is just a short write-up on installing HAProxy version 1.8 on CentOS 7 using Software Collections. HAProxy ┬áis an application layer (Layer 7) load balancing and high availability solution that you can use to implement a reverse proxy for HTTP and TCP-based Internet services. I am using it to expose my webservices through a […]

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Linux

Configure network team using nmcli / NetworkManager

This is a short post on how to create a LACP network team with two member nics using NetworkManager and nmcli. Configuring av network team is very similar to creating a bond. First we need to install the teamd package if it is not already installed. # yum install teamd I have also included a […]

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