Mounting in Linux is operated by mount command. This is simple way to get access to devices other than currently available on your system. Please note that mounting will be lost after your system restart. To know how to save your mounting after restart, read this post until the end.
Category Archives: Linux
Linux installation advise. Packages tricks. Easy explanation and examples for Microsoft admins.
How to check open connections in Linux
Using netstat utility in Linux it is possible to see not only opened connections, but also to see which ports are open at current connection.
To do so, type: netstat –nap
use netstat –help for more information.
How to check open ports on your Linux system
To check open ports on your Linux system you will need following package: nmap
Debian/Ubuntu got his package in standard repository already for ages.
Installing the nmap.
To have simple check play with your local host IP, usually it’s 127.0.0.1. To do so, type: nmap -sS -O 127.0.0.1
In this example it’s clear which port are open:
22/tcp open ssh
139/tcp open netbios-ssn
445/tcp open microsoft-ds
3306/tcp open mysql
10000/tcp open snet-sensor-mgmt
How to clean typed history in your Linux system
The information about what you typed is continuously stored in most Linux distributions. If it is BASH than it stored in .bash_history file in your current user folder.
The easiest way to delete the history is to type the following command:
history –c
All records from the file .bash_history will disappear.
How to remove all useless file from /tmp folder in Linux.
There are many files could be stored in /tmp folder which are needed by running software on your Linux system. Removing them could cause you data loss.
However there is a safe way to do this.
Use the following command:
TMPTIME=0
This will remove all files from tmp folder.
However there is more elegant solution, but possible less stable. Use TMPFS for /tmp folder. That means that everytime you reboot, you get clean /tmp folder, as all file are stored in RAM of your system.
To see how setup TMPFS follow this link: TMPFS