see lots of seasoned admins and cloud provider wrapper scripts use ssh client command as follows in shell:
ssh firstname.lastname@example.org --
What the double -- does here? Why it is used in this shell command and why not just use the following?
am a small business and ecom site owner. I also run a WordPress based blog to connect with my customers. However, I get too much spam from certain IPs and net-blocks. How do I block access to certain url(s) such as example.com/blog/wp-comments-post.php for selected IP address and CIDRs? How do I allow everyone including IP address 18.104.22.168 to access my blog but block IP address 22.214.171.124 accessing only example.com/blog/wp-comments-post.php? How do I block POST requests for selected IPs/CIDR on nginx?
am a new Linux user. I am having problem with the Terminal. How do I unpack .tgz (tar.gz) file on Linux using command line options?
am a new Nginx web server user. How do I redirect to a different domain using nginx (say example.org to example.com) permanently?
o save the disk space on my Linux based nas (network storage server), I have compressed thousands of reports[0-1000].txt files using gunzip program. However, I need to cat .gz file (or open in vim text editor) for reference purposes. I have a log files stores on my nas server in compressed format using gzip command. How do I display compressed Apache log file without using cat command
? How to display the contents of gzip text files in screen without unzipping?
am a new Linux user and built my own Steam Machine. The system is powered by Linux-based operating system called SteamOS. What is the default default login password for SteamOS? How can I login into SteamOS?
know how to cange a passphrase for openssh using ssh-keygen command
. How do I change a GPG encryption key’s passphrase on Linux or Unix like operating systems? How do I change the passphrase of the secret key using gpg?