Install CSF/LFD Firewall on your Linux Server
The first thing on your mind when setting up a new Linux server (dedicated or VPS) is how you can increase security. One of the best tools in your bag of tricks should be the CSF (ConfigServer) LFD...
View ArticleLearn the CSF command line options
You have CSF installed and use the GUI to do most things. (If you don’t have it installed yet, you can read our article on how to install csf). BUT – knowing the csf (ConfigServer Firewall) flags...
View ArticleUntangle your network
Whether you’re the admin of your office network or your home network (or both), it’s always a good idea to have security and order in place. Untangle is software that you can install as the operating...
View ArticleEnable statistics in Configserver Firewall (CSF)
I’ve noticed recently that a new install of CSF won’t have statistics enabled by default. Here’s how to enable them… Edit your /etc/csf/csf.conf file and change: ST_ENABLE = “0” to ST_ENABLE = “1”...
View ArticleReduce TIME_WAIT socket connections
Some time in your life you’ll run across an Apache server that always has tons of TIME_WAIT connections just seeming to hang out. While these don’t take up as many resources as an ESTABLISHED...
View ArticleLock down your SSH port/access
The instant a Linux server is connected to a public network it starts getting hit by attackers. There are people out there running programs constantly against IP ranges and they’ve hit your server...
View ArticleCentOS 7 / RHEL 7 – Open ports
One of the most common things I do on Linux machines is open ports to test software in a development environment. In the past, that meant trying to remember (and Googling) cryptic...
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