Vyacheslav

How to see Wi-Fi password on MikroTik

If you look at the password in the Wireless – Security Profiles menu in RouterOS, then it is hidden behind the symbols and can only be changed, so I will show an example of how you can see it.

Messages net_ratelimit: X callbacks suppressed

Once I found the following messages in the dmesg log:

Solution write error: Value too large for defined data type

Once I manually bind the interrupts of the Intel network adapter to the processor cores and ran into an error:

Configuring OSPF in BIRD

In this article, I will give an example of configuring OSPF in BIRD.

How to run Zabbix-agent as root

I once added user options to the Zabbix agent configuration and they needed to access files that could only have root permissions, so I had to run Zabbix-agent as root.

Renaming Network Interfaces in Linux

Once, after updating the i40e driver for Intel network adapters, I noticed that the names of the network interfaces had changed, and after rebooting the operating system, the names also periodically changed.

Script to bind Intel NIC interrupts to processor cores

I will give the script code from Intel to bind interrupts of Intel network adapters to processor cores, and also show examples of its use:

Installing and configuring BIRD (BGP)

For example, I will install BIRD on Ubuntu Server 20.04 and show an example of configuring BGP.

Taskset – bind process to CPU cores

By default, processes use all the processor cores, but sometimes it is necessary to release the 0 core, which is usually the most loaded, or assign some processes only to the second CPU, etc., in this case, taskset will help.

Solution channel-group command failed: port not compatible Duplex Mode

Once on Cisco Nexus I met errors of this type: