An official fix has been merged into Postfix for spools that are mounted with the “noatime” option: – On backup MX servers where the queue file system is mounted with “atime” (file read/execute access time) updates disabled, the flush daemon would trigger mail delivery attempts once every 1000 seconds, thus rendering the maximal_backoff_time setting useless […]
I’ve been building an LDAP single sign-on system (for Linux, Mac and PC via Samba PDC) at $dayjob and I hit a wall with my MacOS X clients: it seemed that admins had to be specified locally. However, I finally found this solution which boils down to running this as root (or sudo) on each […]
Never – ever – mount a filesystem Postfix uses with the noatime option. If you have fast_flush_domains enabled (which is is, by default) and you have a lot of deferred mail for which you’re the relay host, it will cause mail delays because the flush service uses atime to decide when it should refresh the […]
What I end up using for SFTP clients: Mac: Transmit ($29.95) Windows: WinSCP (free, open source)
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If you have tried to install Debian on a Dell PowerEdge 750 using the 2.6 kernel (or just using a 2.6 kernel after install), you may have noticed that it can’t find your CD drive. In order to fix this, you’ll need to make sure the following modules are loaded: piix ide-disk ide-generic You’ll need […]
If you’re tired of messing around with KVM switches, monitors and keyboards, or need remote console access to your server, a serial console may be just what you need! It’s far easier than you think, and it’s convienent, especialy if you have a laptop or a really long serial cable to your desktop. Please note […]
It seems that Debian gets angry with Dell server hardware. I’ve heard this isn’t a problem on 2.6.10, but cross compiling for 64-bit in a 32-bit userland is annoying, so using Debian’s precompiled em64t-p4-smp kernel is less of a headache. The problem is that when the system boots, it hangs on the setting real time […]