Category Archives: Linux
Fix the Chrome blocking downloads or seeing network errors.
This tool will fix some Chrome blocking downloads or seeing network errors. First you need to restart Chrome – exit and relaunch Chrome, then try your download again. Using settings make this steps by typing chrome://settings into chrome browser: Clear your cache and cookies. Make sure you have the latest version of Chrome installed. Try […]
Linux: Display or change a pre-login message .
Open file /etc/issue and change the text:
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# vi /etc/issue |
You can use this to add some new infos or ascii image. The images can be transform into ascii image by using convert image to ascii. One example to convert a picture into ASCII TEXT,HTML is this website: picascii.com The main problem can be if you have […]
Bash: Get IP and IPv6 address and interfaces.
First use this commands to see your IP and IPv6 address and interfaces.
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/sbin/ifconfig $1 | grep "inet\|inet6" | awk -F' ' '{print $2}' | awk '{print $1}' /sbin/ifconfig |grep -B1 "inet\|inet6" |awk '{ if ( $1 == "inet" || $1 == "inet6" ) { print " ",$2 } else if ( $1 != "inet" && $1 != "inet6" ) { print $1 } }' |
Now if you want to use this every day, just open your .bashrc file from your home folder. Add this functions to the .bashrc file:
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# User specific aliases and functions function getip { /sbin/ifconfig $1 | grep "inet\|inet6" | awk -F' ' '{print $2}' | awk '{print $1}'; } function getips { /sbin/ifconfig |grep -B1 "inet\|inet6" | awk '{ if ( $1 == "inet" || $1 == "inet6" ) { print " ",$2 } else if ( $1 != "inet" && $1 != "inet6" ) { print $1 } }'; } |
Now open a new terminal shell and use it:
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$getip $getips |
Linux: How to fix the Shellshock vulnerability.
About the Shellshock vulnerability you can read here. Run this command:
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[mythcat@localhost ~]$ env x='() { :;}; echo vulnerable' bash -c 'echo hello' hello |
If you see this:
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vulnerable hello |
The you have a Shellshock vulnerability, to fix use this:
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[mythcat@localhost ~]$ sudo yum update |
Thank’s.