Ping is a great utility to use to test if a server is up or if a server is responding in the correct time, but what if you could use ping to actually test your network infrastructure. Lets call it a “poor mans test”.
Linux ping allows you to specify the number of bytes that are sent to the server your pinging.
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SSH allows you to do key sharing which allows you to log into a machine without typing your password, or even for that matter, having a password at all. Best of all, it does the key sharing completely encrypted, so the chance of you losing your keys in the process is very unlikely.
In my example I have 2 machines. A desktop and server. I want to be able to connect to server without entering my password.
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Firewalls are important for safety on the internet, but sometimes they just get in the way, so why not remedy that by using what you can to your advantage. At my home I am required to have an SSH connection back to the office. The office is able to connect to all of our remote sites, but I am not able to have VNC to my home, so I must tunnel VNC. In order to do that I do a SSH local port forward
ssh john@example.com -L8080:127.0.0.1:5590
MySQL is an excellent database product and even though Oracle just bought out Sun, who bought out MySQL, Oracle still promised to keep up with MySQL patches and releases. (see more here) This is great news for all us die hard MySQL and PHP guys, we no longer have to worry about giving up our MySQL for something else (because you can have my PHP when you pry it from my cold dead fingers). Though the question of the day is, when we get Millions of records how can we speed it up. Say for example I have a callrecord database that has a few things in it
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