1. Deleuze
This machine donated by Justin Leitgeb seems real nice. Buffered disk throughput is about 1.5 GB/s. Raw disk reads are 60 MB/s for the two 36 GB disks and 120 MB/s for the 4-disk array. Not bad at all.
1.1. Tasks done
- Removed excessive packages, cleaned up the system
Installed changetrack to monitor all config file changes. The program uses rcs and automatically keeps previous revisions. It is ran from cron on a daily basis.
Installed debsums to monitor file md5sums
- Installed Courier IMAP and IMAP-SSL
Installed LDAP for user authentication. The system is currently configured to use LDAP and fallback to the usual /etc/ files. Admin users will be added locally on all machines and will be able to log in even when LDAP is not operational.
- Installed MIT Kerberos 5
Fixed date/time on the system. Installed ntpd
Installed TLS support for LDAP. Certificate file is /etc/ldap/server.pem, and ldap/ldaps ports are 389/636.
- Installed Linux 2.6.18.3-grsec with 2.6.18-mm3 patches (2) for megaraid.
The patches and source tree installed, along with the .deb generated, is under /usr/src/ntk2. I set up sockets groups as on fyodor (7070-7072). SMP, with hyperthreading enhancements, is enabled. I also installed a bunch of packages that someone were uninstalled while I was gone (e.g., gcc). I also fixed the sudoers, wheel group, and admin home directories. --NathanKennedy
- Kerberos works.
Compiled requisite kernel modules, compiled and installed new OpenIPMI package, and installed dellomsa. Dell OMSA is now working. --NathanKennedy
1.2. TODO
In order of implementation (soonest first):
LDAP working with kerberos. Documentation on this is lacking. -- DavorOcelic
- Fix resolv.conf on both servers to have multiple good DNS servers for now, set it to use localhost once BIND is running and configured.
Install AFS (need to repeat the reading on AFS and how it really works. Also it will influence the decision how to format /dev/sdb in the system) -- DavorOcelic
Install MySQL and PostgreSQL (input from AFS step and admin discussion needed to see how to exactly configure this) -- DavorOcelic
Install BIND -- DavorOcelic
Review kernel configuration and install testnet. -- DavorOcelic
- Install and configure Apache, to serve static web content only.
- Get domtool2 working (this to be done concurrent with mire).
- Figure out how to use Dell OMSA or other tools to monitor RAID and other hardware.
1.3. Problems
With debsums, once you break md5sum of a config file, the file keeps being reported as mismatching even if you completely regenerate md5sums for a package!! -- DavorOcelic
The logical volume for /dev/sdb is supposed to be a 4-drive raid array, each drive ~73GB. Right now it seems to be configured as RAID1 mirroring the two drives, for a capacity of ~146G (see dmesg, for instance). This would be faster and the volume would be 73G bigger if it was set up as RAID5. I might need to do this from console, and I need to talk to Justin about it, since he set up the logical volumes and I thought he said that sdb was RAID5. --NathanKennedy
2. Custom software
- Vmail tools
- Web portal
- Watchdog process to kill resource hogs
These are my responsibility. Right now, I'm waiting for the more traditional stuff to be set up and stable before beginning. --AdamChlipala
3. Global TODO
Make ca@hcoop.net e-mail address working. It's the address used in the certificate files.
4. Global Notes
To edit LDAP database from a GUI tool, use gq program
To connect to hcoop's ldap server using gq, create a SSH tunnel: ssh -p 2222 -f -N -L 389:localhost:389 USERNAME@69.90.123.51, and then connect to localhost:389 in gq.