ANDREW PENG

Just wrote up a short how-to on how to disable the camera shutter sound in the Google Nexus S 4G – this requires superuser / root but otherwise is a 5 minute procedure.

  I thought it was appropriate.

While configuring a few servers I noticed some strange behavior with mode 4 channel bonding (LACP / 802.3ad) and DHCP. You might get the following error message, no matter what you do: Determining IP information for bond0… failed; no link present. Check cable? The problem appears to exist in how the interface responds to link [...]

~ $ dig andrewpeng.net aaaa +short 2607:f298:1:104::a53:ecdd ~ $ What the hell is that? It’s my shiny new IPv6 address! Dreamhost makes it stupid easy to assign a IPv6 address to your account; just log into your panel, click on your domain, then just click Add IP Address and that’s it. I also added an [...]

Really thought I lost the LVM share. There might actually be a bug in the PowerPC Debian kernel that causes it to kernel panic on large LVM partitions. Ever since I switched to an Athlon MP server from my old PowerMac, it hasn’t kernel panicked since. Nice to have a large network drive at home [...]

Yelling at your servers can measurably negatively affect their performance. No joke. Make sure to treat your servers with respect, and keep it quiet in the datacenter! Perhaps there is a “brown note” for disks (“rust note”?) – some harmonic that destroys their performance; although based on what we think is happening (disk heads being [...]

The idea of using memcached on my shared hosting account had been bouncing around my head for a while; especially on my DreamHost shared hosting account. There are periods when the performance would suffer because of other users on the server, and I was also looking for a general increase in performance without having to [...]

I find it particularly annoying that the default settings in a stock base Debian install blanks the monitor after about 30 minutes of inactivity. There are a few servers that I have logged in and running htop 24×7 and it’s inconvenient to have to hit the keyboard every time I need to check in on [...]

Update 6/9/2011: I have put in a bug report (#629492) with the Debian developers to notify them of this issue. It looks like there is a bug in the installer for Debian Lenny/PPC that causes the installation to improperly detect SMP configurations. I have a Quicksilver PowerMac G4 dual 800 – after I finished installing [...]

If you have nested screen sessions, and you need to get out of the innermost screen session, I found the following command particularly useful: CTRL-a, a, d