Category Archives: Linux

Get your own /64 IPv6 IPs without the help of your provider.

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 »

Install htop 2.0 – Better Linux Process Monitoring for RHEL, CentOS & Fedora

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 »

/usr/bin/crontab permissions are wrong. Please set to 4755

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 

How to track mail from PHP when run as nobody?

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 »