Useful tips for everyday
What is Perl script used for? Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of…
How do I access MMS cfg? The mms.cfg file is stored in the following location: Windows: system \Macromed\Flash\mms.cfg. (for example, C:\WINDOWS\system32\Macromed\Flash\mms.cfg) Mac: app support /Macromedia/mms.cfg.…
How do I open ports on my Chromebook? Add or open a port On your Chromebook, at the bottom right, select the time. Select Settings…
Can I delete var tmp Yum? Per FHS-2.3: The /var/tmp directory is made available for programs that require temporary files or directories that are preserved…
What is buffer and cache memory? Buffer is used to compensate for difference in speed between two processes that exchange or use data. Cache is…
How do you move a window from one screen to another? Click the title bar of the window you’d like to move, then drag it…
How do I execute all sudo commands without password? How to to run sudo command without a password: Gain root access: su – Backup your…
How to stop Apache from asking for SSL password? An alternative is to feed the passphrase to Apache. You can do this with the SSLPassPhraseDialog…
How does pgrep work? pgrep is a command-line utility that allows you to find the process IDs of a running program based on given criteria.…
How to capture the SSL handshake with tcpdump? tcpdump ‘tcp[tcpflags] & (tcp-syn|tcp-fin) != 0’ This command will capture only the SYN and FIN packets and…