Contributing

How do I fix 500 Internal Server Error in Linux? 3 Answers Disable .htaccess file temporarily. Check server Error Logs if contain something. In case…

How to call an apex from a custom button? To call an Apex class from custom button or link on the object detail page, create…

When should a scrum meeting be scheduled? In Scrum, on each day of a sprint, the team holds a daily scrum meeting called the “daily…

Can interface methods have parameters? A Java interface is a bit like a Java class, except a Java interface can only contain method signatures and…

How can I learn design by myself? 9 Easy Ways To Teach Yourself Graphic Design. As a creative entrepreneur, you will never run out of…

Is HTML written in plain text? As the word ‘plain’ implies, a plain text email contains only text—no images, stylized fonts, or hyperlinks. HTML, which…

How do I enable iptables on FTP? Allowing FTP ports 20/21 in iptables Edit file /etc/sysconfig/iptables-config and add “ip_conntrack_ftp“” module to the section “IPTABLES_MODULES=“. Edit…

How to filter a packet with a TC filter? All the filtering commands you will normally need # tc filter add dev eth0 parent 1:0…

How does wing size affect flight? Larger wings move more air, so a bird or plane with a large wing area relative to its mass…

What does the pstree command do in Linux? Pstree command in Linux that shows the running processes as a tree which is a more convenient…