Tip: Perl script to Check Site Availability

Rai    Tips     Linux, perl, script, site availability, task automoation

System Administrators’s ‘common tasks’ are usually monitoring numbers of servers and network connections, and doing each monitoring is rather tedious. So to make our jobs and lives easier, we write scripts to automate repetitive tasks.

Since this is my Linux blog anyway, I decided to share one of scripts that I use in the office. This one is the Perl script that I use to check a specific site if the keyword is present, hence confirming that the site is up and accessible. read more

Tip: Simple SSL Certificate Scanner

Rai    Tips     apache, certificate, http, Linux, security, ssl

If ever you need to write a script that needs you to scan the details of an SSL Certificate of a particular website, you can use this nifty one-liner to get the information that you need.

Security Certificates identify your site as a legit site and offers more secure connection by encrypting the data as it passes along the Internet highway. If the data is encrypted, chances are, the data being transmitted is less likely to be sniffed by malicious hackers.

If you manage hundreds of websites, each with its own SSL certificate that expires on different dates, you will need to create a script that will scan the certificates and capture the expiration dates and there is a nifty Linux command that can do this. read more

Tip: How to Schedule Tasks

Rai    Linux, Tips     cron, howto, Linux, linux command, ls, schedule task, tip

If you are using Windows, you are probably familiar with task scheduler to schedule certain tasks automatically. With Linux, tasks can be done on scheduled dates with cron.

cron is the service that works like task scheduler in Windows and can be used if you want to automate repetitive tasks like generating reports everyday or virus scanning. cron is handled by the cron daemon or crond, which should be running if you want your scheduled tasks to run.
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Hacker’s Black Book

Rai    Tips     hacker's black book, hacking, hacking book, malicious hackers, security, security tools, trojan, virus, vulnerability

Being a systems administrator, it my job to deter mischievous users who plans to cyber-attack any of our servers and boy, it is easier said than done. Hackers are always a step ahead and a vulnerability will attract malicious hackers into your innocent server like ants to sugar. And so I purchased a book that will help me understand a little more about hacking.
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Stop Identity Theft Now

Rai    Society, Tips     identity theft, lifelock

Since the beginning of Internet, securing personal privacy is always prioritized. Information is always available when we need it but other people also has access to the same information. Then comes identity theft.
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