IT Blog - Page 47 of 153 - Vyacheslav Gapon - personal blog, manuals, articles, notes, development

How to configure time (NTP) on Cisco

In this article, I’ll give an example of setting time and setting NTP to automatically synchronize time on Cisco switches.

Distribution of network card interrupts across processor cores

I will give an example of the distribution of interrupt network interfaces on the processor cores.
For example, I’ll take a server with accel-ppp, 6Gb/s traffic, 500K + pps, nat with ipoe and 6000 dchp clients.
Also, be sure to disable hyper-threading in the BIOS, since load balancing on virtual cores can greatly increase the load on some physical cores.

How to delete Badoo profile

On the test, I’ll delete the Badoo profile, first go to the profile settings by clicking on the wheel in the upper right corner.
Then at the very bottom, click on the link “Delete profile”.

Error solution with REST API “The response is not a valid JSON response” WordPress+Nginx

Once I installed WordPress on an Ubuntu Server operating system with a Nginx web server and when I tried to add a new article I saw an error:

Huawei MA5608T Firmware Update

For example, I will update the firmware of the Huawei MA5608T control board.

Cisco 6509e Net Input CPU Load

Once on a single Cisco 6509e switch configured as L3 and with a standard CPU load of 10%, the load suddenly increased to 40%.

Solving the Phabricator HTTP Error 500: Error 1: ** unknown exception encountered, please report by visiting

Once I installed Phabricator and running hg clone over https, I noticed the following error:

Configuring Phabricator

Let’s say Phabricator is installed as I described in the article:
Install Phabricator on Ubuntu
Now let’s get started with the setup.

How to catch flood on Huawei MA5600

Once, on the port of one of the L3 switches of the Cisco 6509e, to which the Huawei MA5683T was connected, I saw that Multicast traffic increased very much, while the CPU load of the switch processor increased by 30%.

Reset BDCOM GP3600

As an example, I will reset the settings on the BDCOM GP3600-08B, on other models the procedure is similar.