Linux - IT blog by Alexander Galkov

Managing KVM using virsh

Useful commands for configuring KVM virtual machines

Configuring Squid on Debian as both a transparent and an usual proxy and allowing users to access only whitelisted domains and IP adresses

Check whether the port is open using bash and lsof and ss utilities

Installing qBittorrent on Docker and configuring shared access to downloads via SMB

Installing a mail server in Oracle Linux on the base of Cyrus IMAP and Postfix with Active Directory integration

Installing Apache Guacamole on Docker, configuring HTTPS access and Active Directory integration

Configuring a mail gateway on CentOS 7 using Postfix with SpamAssassin, ClamAV, OpenDKIM, SPF and DMARC

Setting up HLS streaming using ffmpeg utility on Docker

Mount an SMB share to a docker container in two ways: using the Netshare plugin and by means of the local driver

Running simultaneously multiple instances of Squid bound to network interfaces in different subnets