Vyacheslav, Автор в IT Blog

Setting up Fail2ban with IPv6

I will give an example of configuring Fail2ban to work with IPv6 addresses.

How to block sites on Juniper

For example, I’ll take the Juniper MX204 router and show an example of blocking sites by IP addresses or networks.

Configuring SOCKS in MikroTik

I will give an example of setting up a SOCKS proxy server on Mikrotik.

Solution rsyslogd: action ‘action-6-builtin:omfile’ resumed (module ‘builtin:omfile’)

One day, on the same server running Ubuntu 20.04, I noticed a lot of messages in /var/log/syslog:

phpBB. How to remove all IP addresses from banlist

One day I needed to clear all IP addresses and subnets from the banlist, and there were about 20,000 of them, so I decided to run an SQL query.

iRedMail. Changing the size of a mail attachment

For example, I’ll take the installed iRedMail-1.6.8 and change the maximum size of the mail attachment.

Quickly set up a range of ports on Huawei S2300

I will give an example of quickly setting up a range of ports on Huawei S2300 series switches; for example, I will perform the settings on Huawei Quidway S2326TP-EI.

BDCOM. Restricting access to the web interface

I’ll give an example of how to allow connections to the BDCOM OLT web interface only from specified IP addresses; in a similar way, you can limit other traffic to the OLT, as well as traffic passing to users through the OLT.

BDCOM. Adding a user with limited rights

One day I needed operators to be able to open the BDCOM OLT web interface, so I created a user with read-only access for them.

Setting up logs on Cisco Nexus

In this article I will give an example of setting up logs on Cisco Nexus switches.