Tag Archives: networking

Mac OS X L2TP VPN to Cisco IOS

December 16, 2008 – 5:45 pm

Just spent a couple of hours trying to get a Mac OS X laptop connected to a Cisco IOS IPSEC/L2TP server. The existing configuration worked fine for windows and linux servers but the Mac just refused to establish a connection. The Cisco logs contained the usual cryptic message. Dec 16 16:53:47.955: IPSEC(validate_proposal_request): proposal part #1, [...]

By johnf | Posted in General | Also tagged , , | Comments (5)

Melbourne Cup Dip2

November 4, 2008 – 5:08 pm

To quote Justaan: This is what we call the Melbourne Cup Network Effect It seems it really is the race that stops the nation. This is a graph of Bulletproof’s outbound web traffic for today. That’s a 37% drop in outbound traffic just after 3pm. Make sure you take note of my l33t gimp skills!

By johnf | Posted in General, Sysadmin | Also tagged , , | Comments (0)

Firefox 3 and howtoforge.com

March 19, 2008 – 12:07 pm

There is currently a bug in firefox 3 which causes it to crash with an XError BadAloc when you go to any page hosted on howtoforge. This seems to be related to the image at http://howtoforge.com/themes/htf_glass/images/bg_header_bottom_left15.png. I suggest you don’t click on that link Apparently this image is 10,000 pixels wide. It looks like this [...]

By johnf | Posted in Hacks | Also tagged , , | Comments (1)

Ubuntu, VLANs and Bridges

April 30, 2007 – 4:58 pm

Bridge and VLAN support has improved dramatically under Ubuntu and probably Debian as well since I last looked into it. once upon a time to create a bridge linked to a VLAN interface you would have to do horrible things like. auto eth0 ifconfig eth0 inet manual pre-up /sbin/vconfig set_name_type VLAN_PLUS_VID_NO_PAD || true auto vlan7 [...]

By johnf | Posted in Sysadmin | Also tagged , , , | Comments (0)