Vyacheslav

Kenwood BM250 BM256 BM350 manual PDF

Download manual for Kenwood BM250 / BM256 / BM350 bread maker

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:

“Pings drop out” on GPON ONU and defective power supplies

One day, several technical specialists who connect the Internet to users began to complain that there was no speed and ping requests “dropped out”.

SNMP OID for DSE 7420 MKII

I once created a Zabbix template for the Deep Sea 7420 MK2 module, so I will post some important SNMP OIDs that I used:

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.

MySQL. Accepted a connection with deprecated protocol ‘TLSv1.1’

One day I noticed warnings in the MySQL logs:

iPerf Mulicast

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