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Diff for "AdminArea"

Differences between revisions 5 and 127 (spanning 122 versions)
⇤ ← Revision 5 as of 2006-11-27 14:21:04 →
Size: 3870
Editor: NathanKennedy
Comment:
← Revision 127 as of 2010-01-06 01:01:31 → ⇥
Size: 2876
Editor: DavorOcelic
Comment:
Deletions are marked like this. Additions are marked like this.
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= Deleuze = #pragma section-numbers off
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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. This contains a list of pages that are of interest to the admins.
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== Tasks done == <<TableOfContents>>
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 * 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		 = Keeping track =
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== TODO == == On-site visits ==
 * OnSiteVisits: Records of visits by HCoop volunteers to our colocation facilities
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In order of implementation (soonest first): == Responsibilities ==
 * TaskDistribution: What each sysadmin is responsible for.
 * VolunteerResponsePolicy: Guidelines for responding to requests and email.
 * AdminArea/ListOfVolunteers who can help us do stuff...
 * AdminGroup: Listing of people who can delete pages and despam pages on the wiki.
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 * 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.		 == Technical Records ==
 * IpAddresses: Listing of IPs that we use.
 * [[Hardware]]: Information on HCoop hardware.
 * HcoopAddresses: Physical addresses relevant to us.
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== 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

= Custom software =

 * DomtoolTwo
 * 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		 == Misc ==
 * RoadMaps: Detailed plans for future events.
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= Global TODO = = Sysadmin Stuff =
 * AndrewFileSystem: Using our shared filesystem.
 * AuthenticationScheme: How authentication works on our systems.
 * DomTool: Administering and using domtool.
 * TipsAndTricks
 * DaemonFileSecurity
 * EtcKeeper: Use this to keep track of config changes.
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 * Make ca@hcoop.net e-mail address working. It's the address used in the certificate files. == General Sysadmin ==
 * BackupInfo: Information on how to recover deleted files from our off-site backups.
 * SetupNewMachines: How to put the basic hcoop AFS/Kerberos client config on a newly acquired machine.
 * DebianPackaging: How to make custom HCoop Debian packages.
 * KvmAccess: How to use the remove KVM and avoid going on site.
 * KvmInfo
 * UserManagement only talks about adduser/deluser right now.
 * ResourceLimits
 * InstalledSoftware lists non-debian installed software.
 * SystemAuthentication lists authentication
 * UsingResourceLimits If this is still accurate, we should move it to MemberManual area.
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= Global Notes = == Specific Services/Tasks ==
 * DaemonAdmin: How to set up various daemons (subpages for various services, should be linked from here.).
 * MailMan contains no information...
 * SetupNewAfsServer: How to set up a new AFS server.
 * MemberFreezing: How to freeze and unfreeze members who get behind on dues
 * AdminUserSetup lists steps to create (blank), delete, and change passwords of admin users.
 * ChangingAdminPassword: How admins can change their UNIX passwords.
 * CertificateAuthority: How to sign user SSL certificates and the like.
 * ZoneTransfers is also mostly blank.
 * PrincipalsForNonHumans talks about kerberos for automated tasks.
 * SpamAssassinAdmin
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 * 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''.		 == Specific Machines ==
 * PowerEdge2850 is about '''deleuze'''
 * RebootingDeleuze: Steps to take after rebooting deleuze.
 * RebootingMireSp: How to reboot mire using its SP interface.
 * HopperServiceProcessor
 * KrunkInfoz

= Historical =
 * SoftwareArchitecturePlans: Plans for software installation.
 * SystemArchitecturePlans: Plans regarding our hardware.
 * InstallationLog contains ancient (~2005) records of installation of software and hardware

This contains a list of pages that are of interest to the admins.

Contents

  1. Keeping track
    1. On-site visits
    2. Responsibilities
    3. Technical Records
    4. Misc
  2. Sysadmin Stuff
    1. General Sysadmin
    2. Specific Services/Tasks
    3. Specific Machines
  3. Historical

Keeping track

On-site visits

  • OnSiteVisits: Records of visits by HCoop volunteers to our colocation facilities

Responsibilities

Technical Records

Misc

  • RoadMaps: Detailed plans for future events.

Sysadmin Stuff

General Sysadmin

Specific Services/Tasks

Specific Machines

Historical

AdminArea (last edited 2020-08-23 22:16:03 by ClintonEbadi)