Mobile SSH ClientMobile SSH Client
There has been a lot of fuss recently about the release of the iPhone [1] in Australia. But I have not been impressed. I read an interesting post Why I[...]
Category: Networking
The New DNS MessThe New DNS Mess
The Age has an interesting article about proposed DNS changes [1]. Apparently ICANN is going to sell top level DNS names and a prediction has been made that they will[...]
Solving Rubik’s Cube and IO BandwidthSolving Rubik’s Cube and IO Bandwidth
Solving Rubiks Cube by treating disk as RAM: Gene Cooperman gave an interesting talk at Google about how he proved that Rubik’s Cube can be solved in 26 moves and[...]
Letter Frequency in Account NamesLetter Frequency in Account Names
It’s a common practice when hosting email or web space for large numbers of users to group the accounts by the first letter. This is due to performance problems on[...]
BIND StatsBIND Stats
In Debian the BIND server will by default append statistics to the file /var/cache/bind/named.stats when the command rndc stats (which seems to be undocumented) is run. The default for RHEL4[...]
Moving a Mail ServerMoving a Mail Server
Nowadays it seems that most serious mail servers (IE mail servers suitable for running an ISP) use one file per message. In the old days (before about 1996) almost all[...]
Mobile FacebookMobile Facebook
A few of my clients have asked me to configure their routers to block access to Facebook and Myspace. Apparently some employees spend inappropriate amounts of time using those services[...]
ARPARP
In the IP protocol stack the lowest level protocol is ARP (the Address Resolution Protocol). ARP is used to request the Ethernet hardware (MAC) address of the host which owns[...]
Ethernet Bonding and a Xen BridgeEthernet Bonding and a Xen Bridge
After getting Ethernet Bonding working (see my previous post) I tried to get it going with a bridge for Xen. I used the following in /etc/network/interfaces to configure the bond0[...]
Ethernet Bonding on Debian EtchEthernet Bonding on Debian Etch
I have previously blogged about Ethernet bonding on Red Hat Enterprise Linux. Now I have a need to do the same thing on Debian Etch – to have multiple Ethernet[...]