Author Archives: Robiul

About Robiul

Robiul has 15 years of continuous successful career experience in ICT with extensive background in System Engineering, IT infrastructure design, operations and service delivery, managing IT projects / MIS functions for local and multi-national companies with in-depth knowledge of multiple operating systems as well as construct / manage small to medium size Data Center. Proven ability to design and implement medium to semi-large scale LAN/WAN/WLAN and system infrastructures. Academic qualification: Master of Science in Information Systems. Professional certifications are: MCSE, CCNA, ITIL and FoundStone Security Professional, VCP, NetAPP, CISSP etc.

Unable to connect SQL server port 1433 remotely


Ensure network firewall policy is created for TCP port 1433 Check for Windows Server firewall that port 1433 or SQL program is allowed. Check port 1433 is listening [telnet servername 1433] If not find which port is listening to: netstat … Continue reading

Posted in Windows | Tagged

Hide External Contact from Office 365 GAL


Open Windows PowerShell Enable Scrpits to run in PowerShell Set-ExecutionPolicy RemoteSigned Run the following commands in order: a.     $LiveCred = Get-Credential Enter an Office 365 administrator address and password on open window. b.     $Session = New-PSSession -ConfigurationName Microsoft.Exchange –ConnectionUri https://ps.outlook.com/powershell/ -CredentialContinue reading

Posted in Powershell | Tagged

Delete contents from users mailbox


Following steps help when accidentally sent email to undesirable participants or removing virus attachment for unsolicited emails. Source: http://technet.microsoft.com/en-us/library/dd298173.aspx Download and install followings: Microsoft Online Services Sign-In Assistant for IT Professionals RTW http://www.microsoft.com/en-sg/download/confirmation.aspx?id=28177 [Install BETA if you get any error … Continue reading

Posted in Others | Tagged

Hide, Un-hide, Mailboxes and Block Office365 Users


——- 1. Open Windows PowerShell Click Start > All Programs > Accessories > Windows PowerShell Note: Right-click Windows PowerShell and select Run as administrator. If you get a user account control prompt that asks if you would like to continue, … Continue reading

Posted in Powershell | Tagged , ,

Renew Web server certificate for Watchguard


Simple steps to renew Watchguard self-signed certificate. I created this blog post to remember the steps as it is a rare task that need to perform. Open Policy Manger Click on Setup –> Authentication –> Web Server Certificate Select Default … Continue reading

Posted in WatchGuard | Tagged

CAL items are restored automatically


Issue Definition: Office 365 Deleted calendar events keep coming back. Resolution: This action will need the global administrator permission for the Office 365 account. 1. Please start the Windows PowerShell in the PC and run it as administrator. 2. Then … Continue reading

Posted in Powershell | Tagged