Archive for the 'Tip of the day' Category
- Find Out If Your WebSite Blocked In China Or Not
Internet censorship in the People’s Republic of China is conducted under a wide variety of laws and administrative regulations. In accordance with these laws, more than sixty Internet regulations have been made by the People’s Republic of China (PRC) government, and censorship systems are vigorously implemented by provincial branches of state-owned ISPs, business companies, and organizations. So how do you find out if your website is blocked by the Great Firewall of China?
- Exporting Networked File Systems Via Another Networked File System
How do I access networked file system mounts such nfs via ftp servers under Linux / UNIX?
- How To Deal With Shortage Of UNIX / Linux Administrators
It happens all the time. Sooner or later, every organization may run out of qualified admin staff because of various issues. So how do you deal with fresh out of school admins or other helping people in your organization?
- mplayer: Play All Mp3 Files In Reverse Order
Reverse order files while sorting and play with mplayer multimedia player.
- How to: Install KDE 4 Desktop under Ubuntu Linux 7.10
KDE 4 has been released. I’ve received couple of questions about installing KDE 4 under Ubuntu Linux 7.10. KDE 4 Packages are available for Ubuntu Linux version 7.10 (Gutsy) and from development Ubuntu Linux Hardy version. They install to /usr/lib/kde4 and can be installed alongside your existing KDE 3. However these packages are not compatible [...]
- setsid: Keep Linux / UNIX program running while you logs out
I already wrote about nohup command, which allows you to ignore HUP (hangup) signal and keep running the command after user logged out. You can accomplish the same behavior using screen or disown command.
setsid is another program that runs a program in a new session. For example run a script called ~/scripts/mirror.site:
ssh you@remote-box.com
setsid [...] - Quick Shell Tip: Remove grep command while grepping something using ps command
Generally you use ps command to find out all running process. You may also pipe out ps command output via grep command to pickup desired output.
Basically you don’t want display grep command as the process.
Let us run combination of ps and grep command to find out all perl processes:
$ ps aux | [...] - Find out DNS Server Version With DNS Server Fingeprinting tool
By hiding out DNS server version number you can improve server security. fpdns is a program that remotely determines DNS server versions. It does this by sending a series of borderline DNS queries which are compared against a table of responses and server versions. (just like nmap command’s remote OS detection facility).
A nameserver basically [...] - zcommands: Read gzip compressed text files on fly
Both Linux and Unix like oses comes with z commands. It allows you to read gzip compressed text files using zless, zcat and zmore etc. gzip reduces the size of the files using Lempel-Ziv coding (LZ77). Whenever possible, each file is replaced by one with the extension .gz, while [...]
- Quick Tip: Run wget in background for an unattended download of files
Here is quick tip, if you wish to perform an unattended download of large files such as Linux DVD ISO use wget as follows:
wget -bqc http://path.com/url.iso
Where,
=> -b : Go to background immediately after startup. If no output file is specified via the -o, output is redirected to wget-log.
=> -q : Turn off Wget’s output [...]
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