I don’t burn CDs often, but when I do I still look for “cdrecord”, which doesn’t exist on debian anymore. Debian forked the source and renamed it to wodim, because of a license dispute between the Debian maintainers and cdrtools author Jörg Schilling.
cdrecord is called wodim now Read More »
Problem: Windows 7 clients wait 5 seconds to send simple HTTP requests to a web server behind a cisco CSS content switch. But there is no delay when the client connects directly to a web server behind the CSS. Description: I found one difference between CSS and non-CSS connects: the TCP WSCALE option. When the
WScale and Cisco Content Switch CSS. Read More »
If you like to restrict access to a directory on your Apache web server to users from a fixed IP range without password, and the rest of the world with password authentication the httpd.conf section can look like this for Apache-2.2: For apache-2.4 the syntax has changed to:
Apache Authentication by IP and Password at the Same Time Read More »
Problem: A Cisco IP phone (in my case 7970G) does not sync with an NTP server. The phone sends an NTP request, receives an NTP response, but does not set its date and time. Solution: It’s a known bug of Cisco’s IP phone software releases 8.3(3) or higher according to Cisco bug id: CSCso40588. Cisco
Cisco IP Phone and NTP Read More »
Challenge: You have a linux based firewall, which should forward all internal and external traffic of its connected clients through a VPN tunnel, and at the same time the traffic from the firewall itself should not go through the tunnel (e.g. the tunnel connection packets). Solution: There are lots of howtos for this probably. Here
Multiple Routing Tables with IPTables Read More »
I just read that MircoSoft announced a “new” software to control two WindowsPCs with one keyboard and mouse. It might be new to MircoSoft but a software for this exists since about 1998. When I had both Linux and Windows on my desktop some years ago I used x2vnc for this. Read on: http://fredrik.hubbe.net/x2vnc.html
One Mouse and Keyboard for Two Computers Read More »
I use Logitech Squeezeboxes at home for my music library, Internet radio, and podcasts. The server is running on my Linux server, and the clients are Squeezebox Boom and Squeezebox Duet. If you like to stream to your desktop PC, you can use several software squeezebox clients, but there is also a simple way to
Squeezebox Remote Streaming Read More »
Problem: Windows NLB IPs are are not reachable through and from Cisco routers and switches. NLB services could be IIS arrays, Exchange CAS arrays, etc. Solution: NLB mode was set to Multicast. In this mode Windows incorrectly uses multicast mac addresses. Set the NLB mode to Unicast and configure static mac address table entries on
Windows Network Load Balancing NLB and Cisco Routers/Switches Read More »
If you want to bind some ethernet interfaces into one logical interface between two ciscos switches you have to configure an interface first: interface Port-channel 1 then add some interfaces into this new interface: interface GigabitEthernet 1/0/1 channel-group 1 mode active and you can check the status with: show etherchannel 1 summary Three names
Cisco has weird naming conventions for groups of interfaces Read More »
If you like to search through the full Internet routing table from around the world, you can find some looking glasses at http://www.traceroute.org/ or http://www.routeviews.org/. e.g. Routeviews has telnet access to zebra servers (route-views.isc.routeviews.org,…)