Linux – IT Blog

Setting up Firewall in Proxmox

I will give an example of enabling and configuring the Firewall in Proxmox. By default, the Firewall is disabled and there are open ports, for example: SSH, 111, 3128, 8006.

How to restrict access to the Proxmox WEB interface

I will give an example of restricting access to the Proxmox web interface on port 8006.

Key ‘x’ doesn’t exist in table ‘x’

Once after updating the ABillS billing system, when opening the Maintenance>Hardware>PON menu and selecting a device, an SQL error occurred:

Upgrade from Ubuntu 20.04 to 22.04 using “do-release-upgrade” command

For example, I will upgrade Ubuntu Server 20.04 to version 22.04.

Bird log rotation

I will give an example of the Bird log rotation script, since by default it was not in Ubuntu 18 and in neighboring versions too.

Moving Nextcloud to another server

For example, I will transfer Nextcloud from one Linux server to another and change the domain.

Migrating from Quagga to Bird

For example, I will give a simple example of migrating from Quagga to Bird, that is, how can you install Quagga and Bird at the same time on the same server, and switch between them.

iPerf Mulicast

I will show an example of running iPerf to test network bandwidth using UDP Multicast.

How to translate SNMP MIB to OID

In this article, I will show an example of how to translate SNMP MIB to OID.

Installing Asterisk from source

In this article, I will give an example of installing Asterisk from source code, for example, I needed it to install a new version of Asterisk on Ubuntu Server 22.04, since Asterisk 18 was installed from the default repository, and there were no modules I needed by default, such as Voicemail.