• HOW TO: Bypass ClamAV Signature on Zimbra

    Recently I encountered a bug on clamav signature having false positive for Win.Exploit.CVE_2016_3316-1   Ref. https://bugs.documentfoundation.org/show_bug.cgi?id=101423 Which was causing emails with doc and docx file bounce. This can be fixed with below commands  


  • How to Add Disk to Ubuntu LVM

    Follow these steps to add your new disk to ubuntu LVM 1.) Login to your server 2.) Install Logical Volume Manager ( If its not installed ).

    3.) Check the name of your new disk by below command

    4.) Convert your new disk to a physical volume

    5.) Check your Machine’s Volume […]

  • Zimbra Change SMTP Banner

    I wanted to remove Postfix from the SMTP banner on Zimbra and below command can help remove Postfix from smtp banner  

    Once you run above command you will need to reload zmmtactl by below command.


  • LG G4 Marshmallow Update

    Installing Marshmallow Update on my LG G4, here’s the official change log:


  • How To Get A+ Score on Qualys SSL Labs For Nginx Server

    Its long since my last post. Here’s the optimal configuration for Nginx for getting A+ Score on ssllabs.com I have tested this working on Ubuntu 14.04. Generate dhparams file with below command

    Edit your site configuration for eg. ( /etc/nginx/sites-enabled/yourwebsite.com)  Add / Change your site’s configuration as per below code.

    Restart Nginx Server […]

  • Windows 8 Keyboard Shortkuts

    Here is a good list of Windows 8 keyboard shortcuts · Windows key – Brings up the Metro start screen. You can start typing to search for an app, just like the Win7 start menu. · Win + B – Switch to the (classic) Windows desktop and select the tray notification area. · Win + […]

  • Change Master Server in XENCenter

    If you want to change the master server incase master is down Use this command to setup a new slave server Go to the slave server that you want to use as pool master. Disable HA. #xe pool-ha-disable List UUID for all the hosts #xe host-list Promote slave # xe pool-designate-new-master host-uuid= Easy right!!! If […]

  • Forgot SA Password on SQL Server??

    Here’s the solution I. Force SQL server to support mixed-mode authentication. 1. Run REGEDIT 2. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL10.SQLEXPRESS\MSSQLServer NOTE: This key may vary slightly based on the installed version and instance name. 3. Set “LoginMode” to 2. 4. Restart SQL Server. (Source: http://support.microsoft.com/kb/285097 ) II. Force SQL server to let you in temporarily […]