IT Blog - Page 35 of 153 - Vyacheslav Gapon - personal blog, manuals, articles, notes, development

BDCOM OLT Recovery

Once an incorrect firmware was loaded into one of the OLTs, because of this, it cyclically rebooted.

Once it was necessary to monitor the level of the optical signal to the BDCOM OLT P3310C and P3608-2TE, after the trunk cables of different quality could stretch in the summer, and thus we lost contact with one of the OLT, although this situation could be predicted and prevented.

VLAN Generation Script for Netplan

Once it was necessary to add several hundred VLANs without IP addresses to the Netplan configuration and in order to simplify the process, I came up with the following script:

Accel-ppp. error nl_modify: File exists

Once I noticed the following error in the /var/log/accel-ppp/accel-ppp.log:

Accel-ppp session termination script

I will give an example of a script to end the sessions taken on the official telegram channel Accel-ppp. Using accel-cmd and grep, we select the necessary sessions, for example, by the speed of the shaper, or part of the IP address, for example 10.10.10. and then for example send these sessions terminate if ipoeX soft or hard via accel-cmd.

Configuring DHCP Snooping on Edge-core

Let me give you an example of setting up DHCP Snooping on Edge-core switches, for the test I’ll take the ES3526XA model.

BDCOM OLT: LLID sequences have been used up on EPON

One day, a technician connected a client and informed me that the ONU is not registering with one of the BDCOM P3608-2TE EPON OLT. I looked at the logs:

Configuring Edge-core ES3526XA

In the test, I’ll configure the Edge-core ES3526XA switch.

How to install and configure Zabbix-agent on Ubuntu

On Ubuntu/Debian Zabbix-agent installs quite easily.
Initially, just enter the installation command:

How to transfer WordPress to another domain

Firstly, you must make a backup copy of the database and www directories.