I am a new Linux and Unix-like system command line user. How do I find and locate the binary, source, and manual page files for a given command?
have four Apache backend servers in front of nginx reverse proxy server
. How do I make sure nginx reverse proxy load balancer always send specific client IP address (say IP 184.108.40.206) request to http://apachereadwrite/ backend and rest to http://apachereadonly/ backend?
s there is a tool that can provide me a maximum of information (such as cpu, disk I/O, network, nfsd, memory and more) about my Linux/Unix server in a minimum of space in a terminal?
am a new Python user. I would like to delay execution for five seconds in a Python script. How do I add a time delay in Python on Unix/Linux? Is there a sleep command in python like the Unix/Linux sleep utility to suspend execution
of a bash script?
pache has status page that can provide data about Apache. How do I enable and display such page using nginx server? How do I enable nginx status page on Linux or Unix-like operating systems?
y MySQL database installation has been corrupted. I would like to delete old mysql server. How do I reinstall MySQL database server version 5.x on Linux or Unix-like oses? A software upgrade broke my system. How can I uninstall and re-install mysql again to get fresh full mysql again?
see lots of seasoned admins and cloud provider wrapper scripts use ssh client command as follows in shell:
ssh email@example.com --
What the double -- does here? Why it is used in this shell command and why not just use the following?