IT Blog - Page 12 of 153 - Vyacheslav Gapon - personal blog, manuals, articles, notes, development

Juniper. Solution of failing auto-image upgrade

I was setting up a Juniper QFX5100 once and noticed persistent messages:

Configuring LAG on Juniper QFX5100

For example, I will configure the LAG on the Juniper QFX5100, by which I will connect the Juniper MX204.

Silicom Intel XL710 firmware not updating

One day they sent me an Intel XL710-QDA2 network adapter, from the manufacturer Silicom, on which the firmware could not be updated.

BIRD BGP: Unexpected connect from unknown address

Once I set it up on a new BIRD server and noticed entries in the logs:

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.