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DomainKeys Identified Mail (DKIM) is an email validation method that uses public and private keys. The private key is used to sign each message sent and the public key is used by the receiver of the message to validate the signature. It’s very important to use DKIM because, as well as preventing fraud, it gives
There are websites that reduce the download speed per connection. With Axel you’ll be able to download much faster as it opens several connections, thus increasing the download speed. How to install Axel Download Accelerator ? $ wget http://alioth.debian.org/frs/download.php/3016/axel-2.4.tar.bz2 $ tar -zxvf $ ./configure $ make install Downloading with Axel Download Accelerator: Just use the
Slowloris is a tool used for DoS (Denial of Service) on HTTP servers. Basically, Slowloris opens the maximum number of connections possible, leading the server to “exhaustion”. Some of the webservers affected are: Apache 1.x Apache 2.x dhttpd Below are some of the webservers that are NOT affected by Slowloris: IIS6.0 IIS7.0 lighttpd Squid nginx
Scheduling tasks is a very useful feature, for example in server maintenance and backup, etc. In Linux, this can be done using“crontab“. Using the crontab -operation command will allow you to add, list or remove your scheduled tasks. Example: crontab -e (edits scheduled tasks of the masterdaweb user) crontab -l (displays the scheduled tasks of
