Suppose you have a production server that you want to visit via SSH, however, it is not accessible directly. Instead, you have to visit it from a bastion/proxy server. You can configure SSH to use the bastion/proxy server when visiting the production server.
Host <production_server>
ProxyCommand ssh <proxy_server …It is suggested that you use Python instead of Shell to manipulate text files!
Please refer to
Advanced Use of "head" and "tail"
on how to use head and tail for printing rows from a text file.
These 2 commands are convenient when you want to take head/tail rows …
If you don't already know the proxy in use (in your company), read the post Find out Proxy in Use to figure it out.
Put the following lines into your wget configuration file,
which is usually ~/.wget.
use_proxy = on
http_proxy = http://username:password@proxy_ip:port
https_proxy = http://username:password@proxy_ip …Not all jobs are suitable for parallel computing. The more comminication that threads has to make, the more dependent the jobs are and the less efficient the parallel computing is.
Generally speaking, commercial softwares (Mathematica, MATLAB and Revolution R, etc.) have very good support on parallel computing.
Please refer …
You can use the following command to copy your SSH public key to a Linux server.
ssh-copy-id -i ~/.ssh/id_rsa.pub host_machine
However,
if a Linux server runs the SSH deamon on a non default port (default is 22),
you have to specify the port with option -p port.
In …
First you have to install package "lm-sensors".
wajig install lm-sensors
To detect the cpu temperature, type the following command.
modprobe coretemp
sensors
For more instructions on this top, see nixCraft.