I will give an example of installing and configuring the free ClamAV antivirus for checking email messages for viruses.
Continue reading “Configuring ClamAV + Postfix”Author Archives: Vyacheslav
Configuring Spamassassin + Postfix
I’ll give an example of installing and configuring Spamassassin to filter spam.
Continue reading “Configuring Spamassassin + Postfix”How to add static routes in Windows
Let’s say we have a network with the following data:
Continue reading “How to add static routes in Windows”Linux file system and directory structure
I will briefly describe the Linux directory structure:
Continue reading “Linux file system and directory structure”How to install Axigen
Axigen is a free mail server.
Continue reading “How to install Axigen”How to disable TLS 1.0 and TLS 1.1 in cPanel & WHM
In this article I will give an example of disabling legacy protocols in cPanel & WHM.
Continue reading “How to disable TLS 1.0 and TLS 1.1 in cPanel & WHM”How to disable TLS 1.0 and TLS 1.1 in Nginx
The TLS 1.0 protocol appeared in 1999, TLS 1.1 in 2006, and they will both be considered obsolete in 2020, and will also have to be removed from support in various browsers around March 2020, so you need to disable them. Similarly, SSL 2.0, SSL 3.0 protocols were previously outdated.
Continue reading “How to disable TLS 1.0 and TLS 1.1 in Nginx”Installing and configuring iRedMail
Below is an example of installing iRedMail on Ubuntu/Debian.
On the test I will install iRedMail on Ubuntu 18.04 LTS.
What is the difference between Windows x32 and Windows x64
I will give a few explanations:
Continue reading “What is the difference between Windows x32 and Windows x64”How to clear the DNS cache in Windows
In the Windows DNS cache, records of domain names with their IP addresses to which were accessed are stored. When a user opens a site for the first time, a DNS server is accessed; upon subsequent openings of a site, Windows already takes information from the cache. Therefore, if a new IP address has been assigned to a domain, then the system will access the old one for a while based on the data in the cache.
Continue reading “How to clear the DNS cache in Windows”