slaptijack

Today I was browsing through the Cisco NetPro Forums and came across someone that needed to track down which switch port a <acronym title="Media Access Control">MAC</acronym> address had been dynamically learned on.

I'd seen this sort of thing before in the Bridge MIB, so I assumed it …

By default Point-to-Point Tunneling Protocol (PPTP) will now work properly through a Cisco Adaptive Security Appliance (ASA) firewall or it's forerunner the Cisco <acronym title="Private Internet EXchange">PIX</acronym>.

Prior to PIX software version 6.3, allowing PPTP to work through a PIX was a painful procedure involving static …

Sam Varshavchik announced a new release of Courier and Courier IMAP yesterday. The new version includes the following bug fixes:

• webmlm: link against -lsocket or -lnsl_s, on platforms that require it.
• tcpd/starttls.c (main): Prime the OpenSSL entropy pool on platforms that need it.
• rpm: fix the without_fax option …

The following are the Peer-to-Peer (P2P) protocols recognized by Cisco's NBAR Protocol Discovery.

• bittorrent
• directconnect
• edonkey
• fasttrack
• gnutella
• kazaa2
• napster
• winmx

If I've missed any, leave a comment below or use the Slaptijack Contact Form to update me.

Thanks!

Occasionally you might need an Autonomous System Number (ASN) that is only used on your network. The need for these should be infrequent, but it does happen.

One thing that comes to mind is a customer that connects to your network in multiple locations. That customer needs an ASN for …

Jesse Vincent of Best Practical Solutions announced the release of version 3.6.5 of their popular trouble ticketing system, RT: Request Tracker. Although this release is mainly a bugfix over RT 3.6.4, there are a few performance improvements.

In my own RT instances, I use a saved …

Two more updates for applications based on the Horde Application Framework were released today. Once again, the product descriptions are from Jan Schneider of The Horde Project.

• Horde Groupware 1.0.2 - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
• Horde Groupware Webmail Edition 1.0.2 …

The Fedora Unity Project has announced updated re-spins of Fedora 7 current with all updates as of September 12th, 2007.

Re-spins are updated ISOs that contain all updates up to the date of the re-spin. This has the benefit of saving the user from large downloads to bring a newly …

Building on yesterday's release announcement of Courier 20070921, Sam Varshavchik announced new releases of several Courier packages today. According to the Courier website, the "Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols". All packages may be downloaded from the Courier download site …

Jan Schneider of The Horde Project announced several new releases of the Horde Application Framework and the suite of web applications that use it. I'll list the new releases below. You can find all release information, including application and patch downloads, on The Horde Project website. The short product descriptions …

Sam Varshavchik has announced an updated release of the Courier Mail Server and Courier IMAP Server (Courier 20070921). Changes since the last release include

• A looping SPF query is an UNKNOWN result
• Ignore SIGPIPE errors in couriertcpd
• SqWebMail - remove some hardcoded settings. Use SQWEBMAIL_RANDSEED to force the random number seed …

Evan Hunt of Internet Systems Consortium, Inc. (ISC) has just sent an email announcing the release of <acronym title="Berkeley Internet Name Domain">BIND</acronym> 9.2.9. The BIND DNS Server is a popular domain name server implementation.

This release will be the last maintenance release of BIND 9 …

In a recent article on Read/WriteWeb about Online Office Apps, Josh Catone mentioned off-hand that he didn't like the Gmail user interface. Since I've been using the Gmail interface exclusively for quite a while, I decided it might be time to talk about the problems I have with the …

You'll find that some network problems can only be solved by sticking a packet sniffer on the network and seeing what the packets are doing. In a switched environment, this will not work properly since each port is configured to only broadcast traffic destined for the MAC addresses it has …

One of my pet peeves is Cisco switch and router interfaces that remain unlabeled. There is nothing worse that trying to debug a network problem when the problematic interface is unlabeled. Instead of spending valuable time working on the actual problem, you've got to trace down where this cable goes …