There can be many reasons to delete all records in a MySQL Database table and there are two ways you can acheive this using the “truncate” command or by using the “delete” command. While the ultimate net result is the same, there are differences you should know.Read More →
To remove the last ‘n’ characters of a string ‘string'[:-n] or stringVariable[:-n]Read More →
In PuTTY, left-click and drag normally selects and copies the entire line content. However, you can change this behaviour to block select like in a MS DOS window.Read More →
In PuTTY, right-click on the mouse is configured to automatically pastes the contents from the clip-board. While this is a great convenience, it is equally dangerous when you are logged onto live production systems. Have you pasted “reboot” and pressed enter without realizing what you’ve done??Read More →
Oracle Virtualbox by default has Right CTRL key assigned as the HOST key. HOST key is a special key on your keyboard which Virtualbox reservers to return ownership of keyboard and mouse to your host operating system. This however can be changed to the one you prefer. Say for instance, if you want to change it to Left ALT (same as VMWare).Read More →
If you are attached to a corporate or an enterprise network and connect to internet from behind a BlueCoat proxy which proxies FTP connections then FileZilla FTP client needs needs to be configured accordingly to get it work properly. There is an FTP proxy configuration and a Generic Proxy configuration that can be set in FileZilla client.Read More →
Today, I had to troubleshoot a very peculiar problem on my Cisco Catalyst 3750 switches in two different sites. To cut a long story short, both the sites originally had IPSec VPNs over ADSL internet andtherefore static routes added to pass through their VPN firewalls. However, with a recent WAN migration with leased lines, all traffic moved to the WAN routers. However, the Static Routes became stale (obsolete) and we were unable to delete the static routes. The routes are not in the running config (no “ip route command in config”) and a reboot wouldn’t help.Read More →
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