The sysadmin's guide to repurposing an RJ45 port ...

Security practitioners for decades have advised people to limit DNS queries against their DNS servers to only use UDP port 53. The reality is that DNS queries can also use TCP port 53 if UDP port 53 ...

How to configure SSH to use a non-standard port with SELinux set to enforcing Your email has been sent Switching the SSH listening port is an easy way to help secure remote login on your Linux servers ...

Port forwarding is a crucial technique for enabling external devices to connect to specific services on a private network, bypassing the firewall and router restrictions. This guide will walk you ...

Sample Design and Configuration for Layer 2 Out-of-Band Deployment Sample Design and Configuration for Layer 3 Out-of-Band Deployment This chapter covers the configuration of the Out-of-Band (OOB) ...

Jack Wallen demonstrates how to set up a Squid proxy server through the web-based Webmin administration tool. A proxy server can prevent employees from visiting certain sites, help reduce the load on ...

A local Proxy Server can improve the throughput of your broadband connection and at times even protect against malware infections. Therefore Proxy settings have a key role to play. These settings let ...