Category Archives: Sysadmin

Testing smtp auth can be a bit of a pain sometimes, particularly if SSL or TLS is involved. Mail clients often don’t really show what they are doing and/or don’t allow you to set all variables, like which authentication mechanism … Continue reading →

Explicit Congestion Notification (ECN, RFC 3168) has been around for quite a while now, but there are still lots of devices and hosts out there that don’t support it properly. For instance, http://www.npr.org, and apparently all HP’s ILO and ILO2 … Continue reading →

Interesting interview with Jeff Schiller, MIT’s main network guy, in Network World. MIT is going to activate a direct link to New York city later this month – 72 10G waves. Yes. That’s 720Gbit/s. From Boston. To New York.

If you’re trying to do a remote Debian install on a BL20 blade from HP via the ILO interface, you should use the sarge install cd (I used the business card edition) via the ILO’s virtual CD feature, and use … Continue reading →

Debian released a security advisory on Horde yesterday, so I had to upgrade a bunch of machines. I run Horde/IMP from source. Upgrading to a newer version is kind of annoying; I lost a lot of time doing it. In … Continue reading →