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 Similarly, SSL 2.0, SSL 3.0 protocols were previously outdated.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 1.0 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”Deny internet access on Mikrotik
To prohibit Internet access to certain IP addresses on the internal network, you need to click “IP” – “Firewall” in the router settings, add new rules in the “Filter Rules” tab by clicking “Add New” or “+”.
Continue reading “Deny internet access on Mikrotik”How to display the current year in the footer of the site
Let’s say the current year and copyright are manually specified in the template of the site:
Continue reading “How to display the current year in the footer of the site”NAT Modules for VPN, FTP, SIP
Let’s say SNAT or masquerading is configured on a Linux server, for example, as I described in article Ubuntu IP Masquerading (NAT). But if many NAT clients connect to external PPTP, FTP, SIP servers for NAT, then they will have connection problems.
Continue reading “NAT Modules for VPN, FTP, SIP”Installing and using ipt_NETFLOW
ipt_NETFLOW – fast NetFlow traffic sensor, consists of a kernel module and iptables, supports NetFlow v5, v9, v10(IPFIX).
Continue reading “Installing and using ipt_NETFLOW”Allied Telesis AT-8000S Firmware Update
For example, I’ll update the firmware several times on the Allied Telesis AT-8000S/24 switch.
Continue reading “Allied Telesis AT-8000S Firmware Update”