I’ll give an example of adding routes in the Netplan configuration.Continue reading “Netplan. Adding Routes”
Sometimes on some servers it is extremely necessary to turn off automatic system updates, since services compiled from the source code for a specific kernel may not start after updating it, so I decided to write this article.Continue reading “How to disable auto-update on Ubuntu 18”
In this article, I will describe several options for saving IPTables rules so that they load when the operating system starts.Continue reading “How to save IPTables rules”
I once noticed that by default there is no /etc/rc.local file in Ubuntu 18, but it can be created.Continue reading “Solution: No /etc/rc.local file on Ubuntu 18”
Once I noticed the following error in the /var/log/accel-ppp/accel-ppp.log:Continue reading “Accel-ppp. error nl_modify: File exists”
I will give an example of a script to end the sessions taken on the official telegram channel Accel-ppp. Using accel-cmd and grep, we select the necessary sessions, for example, by the speed of the shaper, or part of the IP address, for example 10.10.10. and then for example send these sessions terminate if ipoeX soft or hard via accel-cmd.Continue reading “Accel-ppp session termination script”
I will give an example of setting up a simple mail server on Postfix, Dovecot and MySQL.
For the test, I use the Ubuntu 16.04 operating system.
In this article I will give an example of changing gc_thresh on Linux, this parameter usually needs to be increased on highly loaded access servers.Continue reading “Changing gc_thresh on Linux”
In this article I will give examples of network configuration using Netplan.
I also note that for example, starting with Ubuntu version 18.04, Netplan is used by default.
I will give an example of IPTables rules for BGP.Continue reading “IPTables Rules for BGP”