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Encryption Methods in Linux

Encryption Methods Passwords are one of the most main security features used nowadays. It’s very important for you to have secure and un-guessable passwords. Most Linux distributions have passwd programs that won’t allow you to set easily guessable password plus there are many encryption software in the market that can do this. Make sure that your passwd program is always up to date and has such features. An in-depth details of encryption is beyond the scope of this article, so kindly keep reading. Encryption software is very useful and even necessary in our current time. There’re many methods of encrypting data and each method has its own characteristics. Most Linux distributions mainly use a one-way encryption algorithm, which is called Data Encryption Standard (DES) for encrypting passwords. Brute force attacks including “John the Ripper” or “Crack” can usually guess passwords unless the password is sufficiently random. PAM modules allow user to use differe...

How to keep SSH connections alive

This blog describes how to keep SSH connections alive. If you have experience such problems while using SSH, such as dropped or unresponsive connections, you may need to adjust some settings in your SSH client. KEEPING SSH CONNECTIONS ALIVE Depending on your hardware and software configuration, you may experience SSH connectivity issues. For example, some types of firewalls may preemptively close connections after a certain amount of time has elapsed. To work around these types of problems, you can adjust your SSH client's settings. Follow the appropriate procedure below for your own operating system. Windows operating systems Microsoft Windows operating systems use the PuTTY program to establish SSH connections. If you experience connectivity issues, you can adjust PuTTY's configuration to help keep connections alive. To do this, follow these steps: Start PuTTY. Load your connection session. In the Category pane, click Connection. Under Sending of null packets to ...