IT Blog - Vyacheslav Gapon - personal blog, manuals, articles, notes, development

Juniper: Setting up radius-disconnect

The radius-disconnect trigger allows not to immediately terminate the user’s session upon receiving a request from the radius server to terminate the session, but to wait until the client requests an extension of the IP address lease and only then send FORCERENEW to the client and terminate the session.

Setting up BFD on Juniper MX

When one of the channels goes down and in order not to wait for a timer of tens of seconds to break the BGP session and delete the routes, it was necessary to configure the BFD (Bidirectional Forwarding Detection) protocol, which allows you to immediately notify BGP about this and delete the routes going through the non-working neighbor.

How to add a Favicon in phpBB

I was once asked to add a Favicon icon to phpBB so that it would be displayed in search engines and would look better, I will show you how to do it.

Logging Deadlocks InnoDB

Once I needed to detect Deadlocks and log them, I will describe how to do it:

Juniper. Port Blocking Filter

I will give an example of blocking SMTP port 25 TCP so that users cannot send spam to servers, that is, they cannot make an outgoing connection to the destination port 25 TCP, instead they can make a connection to ports with authorization and encryption, for example 465 or 587.

PC does not turn off when Windows is shut down

One day, an old computer with Windows 10 stopped shutting down, when I pressed the shutdown button, it started shutting down and after that the screen turned off and started up again, it wasn’t even a reboot, but just a Windows user logout/login.