Category Archives: troubleshooting

Find Mac From IP

Posted on September 1, 2010 by Blake

Today I wrote a little script that will find the MAC address of a given IP that is on the same LAN. The script pings the IP, then it checks the ARP cache to find the MAC. Pretty simple, yet … Continue reading →

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Find Operations Masters in Active Directory

Posted on June 1, 2010 by Blake

EDIT: I have found a much easier way to list the FSMO Roles holders. From a command line on any domain controller, Type netdom query FSMO   Thanks to Microsoft, I have an easy solution to finding the FSMO Roles … Continue reading →

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Change Operations Masters in Active Directory

Posted on June 1, 2010 by Blake

Each FSMO Role has a different procedure to change the owner: RID, PDC, and Infrastructure Roles: From the computer that you want to make the new FSMO Role holder: Open Active Directory Users and Computers MMC Right-Click on the Domain … Continue reading →

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Telnet to test SMTP

Posted on March 7, 2010 by Blake

Since I wrote up testing pop3 with telnet, I thought I would also write about how you can test SMTP with telnet. From a command line in windows: telnet open IPofSmtpServer 25 220 mail.server.domain Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959 … Continue reading →

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Telnet to test pop3

Posted on February 26, 2010 by Blake

I found an easy way to test a pop3 connection today. It is a little known tool called telnet (It’s not really little known, but I never thought of using it for pop3, so in my mind it is little … Continue reading →

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