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HTTP status codes

When a request is made to your server for a page on your site (for instance, when a user accesses your page in a browser or when Googlebot crawls the page), your server returns an HTTP status code in response to the request. This status code provides information about the status of the request. This [...]

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Find out MySQL and MsSQL on Windows

This might be helpful in case you are maintaining Windows server and need to find out whether your MsSQL and MySQL is applicable for patches or fixes from vendors, because sometimes Windows not displaying the exact version until application minor number. To check Microsoft SQL/mssql version: SELECT SERVERPROPERTY(‘productversion’), SERVERPROPERTY (‘productlevel’), SERVERPROPERTY (‘edition’) To check mysqld [...]

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ip_conntrack: table full, dropping packet

Today i found this message in one of my server, although the server’s load is quite low. using dmesg , i kept getting this, and it kept coming ip_conntrack: table full, dropping packet I’d seen this message before, but I headed over to Red Hat’s site for more details. Generally, the ip_conntrack_max is set to [...]

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Resizing LVM Logical Volume

——————- Reducing(Offline):: ——————- Scenario: -There is existing LVM partition 50GB in total and has been used up 5GB -We will reduce the LVM partition from 50GB to 10GB -We need to unmount the FS before we can proceed -Please do proper backup before proceed as there might be chances that you would lose your data [...]

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Increase/expand size of the boot or system disk on Windows 2003

There are some of software that can be used to increase/expand size of the  boot or system  disk size on Windows 2003 for example, acronis disk director, partition master, partition wizard, partition assistant,but whatever tools you will use, Please do a backup first. Please take note that you would not be able to increase/expand the [...]

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Log all DNS queries to my DNS server

We can log all the  DNS queries , type this single command (as root) on your DNS server (Bind) ————- rndc querylog ————- once this done, all DNS queries will be logged in /var/log/messages, the results will be similar to Oct 24 03:01:43 ns1 named[30660]: client 200.23.242.196#35545: query: parentsascoaches.net IN MX Oct 24 03:01:43 ns1 [...]

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Ethernet Wiring Diagram

3 types of Ethernet Wiring Diagram >Straight (for both ends) 1)white/orange 2)orange 3)white/green 4)blue 5)white/blue 6)green 7)white/brown 8)brown   >CrossOver, used for pc to pc connection, DTE to DTE devices, DCE to DCE devices 1)white/orange——–white/green 2)orange————–green 3)white/green———white/orange 4)blue—————-blue 5)white/blue———-white/blue 6)green—————orange 7)white/brown———white/brown 8)brown—————brown   >RollOver, (also known as Cisco console cable)is a type of null-modem cable [...]

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