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Basic DNS: PTR records and why you care
A PTR record is what lets someone do a "reverse" DNS lookup - that is, they have your IP address and want to know what your host/domain is. At any Unix/Linux command line, you can use "dig -x" to do a reverse lookup:
Too many messages for Outlook Express Recently one of my Mitel SME Server clients took two weeks off. When he returned, Outlook Express told him he had 23,000 messages waiting on the server! Unfortunately, Outlook Express couldn't bring any of those messages to his PC; it just hung.
Too many messages for Outlook Express Recently one of my Mitel SME Server clients took two weeks off. When he returned, Outlook Express told him he had 23,000 messages waiting on the server! Unfortunately, Outlook Express couldn't bring any of those messages to his PC; it just hung.
| Title | Date | Comments | |||
|---|---|---|---|---|---|
| Transferring mail to a new mail server | 2005 01 | ||||
| Cloning a directory structure without copying files | 2004 10 | ||||
| SME server software raid failure, grub 0x10 error | 2004 08 | ||||
| Unknown email user notification | 2004 07 | ||||
| Basic DNS: PTR records and why you care | 2004 07 | 2009/11/13 12:44 TonyLawrence | |||
| Viri, Worms, Spyware | 2004 05 | ||||
| SME server virus scan notification and double bounce | 2004 05 | ||||
| Debugging a failing pop mail connection | 2004 01 | ||||
| Recovering System after upgrade | 2003 11 | ||||
| Cellular Wireless Access Tips | 2003 10 | ||||
| Visionfs and Samba | 2003 08 | ||||
| Watch those domain names | 2003 08 | ||||
| SME Server Local Networks and VPN's | 2003 07 | ||||
| Triple Threat | 2003 05 | ||||
| Apt-get for RedHat Linux | 2003 03 | ||||
| Notify Cell Phone of Incoming Mail | 2003 02 | ||||
| Too many messages for Outlook Express | 2003 01 | ||||
| SME Server (E-Smith) Mail Forwarding, Lists, Etc. | 2002 06 | ||||
| SME Server V5 Virtual Domains | 2002 05 | 2009/11/10 23:01 TonyLawrence | |||
| SquidGuard | 2001 09 | 2008/12/09 14:13 TonyLawrence | |||
