Tor (The Onion Router) is a system that allows you to establish an anonymous network connection that is protected from listening. It is considered as an anonymous network that provides encrypted data transmission.Continue reading “How to install TOR (The Onion Router) on Ubuntu”
Once, one of the employees opened a web-based email interface (usually located at https://example.com:2096), left the browser window open for a long time, and then the following messages began to arrive at the administrator’s email:Continue reading “How to solve Excessive resource usage: cpanelroundcube”
ASPM (Active-State Power Management) is used to manage the power consumption of PCI Express buses, even if the PCIe device is in use and may affect the device’s response delay.Continue reading “PCI Express ASPM”
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.