How To Install GMP 6 GNU MP or GMP is a free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers. There is no practical limit to the precision except the ones implied by the available memory in the machine GMP runs on. GMP has a rich set of… Read More »
For those of you who didn’t know, Rootkit Hunter (rkhunter) is a Unix-based tool that scans for rootkits, backdoors and possible local exploits. Rkhunter checks to see whether the binary files or system startup files have been modified, and performs various checks on the network interfaces, including checks for listening services and applications. Rkhunter runs… Read More »
A lot of providers does not offers IPv6 yet, with tunnerlbroker.net you can get your own for free. Open this page: http://www.tunnelbroker.net/ Create an account Create Regular Tunnel: http://www.tunnelbroker.net/new_tunnel.php Type in the public ip of your vps (IPv4 Endpoint) Select one of the tunnel servers: Create tunnel Open the config tab: Copy&paste the text to… Read More »
htop is an interactive real time process monitoring application for Linux/Unix like systems and also a handy alternative to top command, which is default process monitoring tool that comes with pre-installed on all Linux operating systems. Htop has numerous other user-friendly features, which are not available under top command and they are: In htop you… Read More »
If you are receiving the error “/usr/bin/crontab permissions are wrong. Please set to 4755” when in the cron section of cPanel, the commands below may correct the error for Redhat/CentOS/Fedora servers. Log into the server via ssh or the console as root and run: PHP Code: yum -y install vixie-cron crontabs chmod 4755 /usr/bin/crontab
Problem: One of the biggest problems with shared hosting is that PHP runs as the web server user rather than the user assigned in the virtualhost (unless your running PHP as CGI). This is a huge problem because when a site is compromised and a attacker is using your server to spam it can be… Read More »
DDoS-Deflate DDoS-Deflate is a couple of bash scripts, that is run every X minutes, analyze the total number of connections to your server from every IP address using netstats command and temporarily blacklist IPs, that have more than Y active connections to your server at the moment, script runs. Blacklisting is done using either iptables… Read More »