OSGeo - User contributions [en]

Osgeo7

2018-08-08T18:22:29Z

Wiki-TemptorSent: /* Proposed */

'''Osgeo7''' is a <add OS, Ubuntu?> machine administered by [[SAC]], hosted on [[SAC_Service_Status#Servers_at_OSL|OSU OSL servers]] since June 2018.

== Hardware ==
Ordered from Silicon Mechanics, May 2018, Delivered OSUOSL June 2018

1 1U X11DDW 815TQC-R706W $7232 $7232.00
Details:
CPU: 2 x Intel Xeon Silver 4110, 2.1GHz (8-Core, HT, 2400 MT/s, 85W) 14nm
RAM: 128GB (8 x 16GB DDR4-2666 ECC Registered 1R 1.2V RDIMMs) Operating at 2666 MT/s Max
NIC: Intel Dual-Port Ethernet Controller RJ45 - Integrated
Management: IPMI 2.0 & KVM with Dedicated LAN - Integrated
Drive Controller: 14 Ports 6Gb/s SATA (Intel C621 Chipset)
Backplane: 12Gb/s SAS3 4-port direct connect backplane
NOTE: For RAID with CacheVault, please select both controller and CacheVault kit below.
PCIe 3.0 x16 - 1: No Item Selected
LP PCIe 3.0 x8: No Item Selected
SATA DOM: No Item Selected
M.2 Drive: No Item Selected
NOTE: Drives will be connected to onboard SATA3 controller unless otherwise specified
NOTE: SED and 4Kn drives may have an extended lead time. To order, please contact our sales department.
Hot-Swap Drive - 1: HGST 8TB Ultrastar He10 (6Gb/s, 7.2K RPM, 256MB Cache, 512e, ISE) 3.5" SATA
Hot-Swap Drive - 2: HGST 8TB Ultrastar He10 (6Gb/s, 7.2K RPM, 256MB Cache, 512e, ISE) 3.5" SATA
Hot-Swap Drive - 3: HGST 8TB Ultrastar He10 (6Gb/s, 7.2K RPM, 256MB Cache, 512e, ISE) 3.5" SATA
Hot-Swap Drive - 4: HGST 8TB Ultrastar He10 (6Gb/s, 7.2K RPM, 256MB Cache, 512e, ISE) 3.5" SATA
Optical Drive: Blanking Panel - No Optical Drive
Front Panel: Blanking Panel - No Front Inputs
Power Cables: IEC60320 C13 to C14 Power Cable, 16AWG, 240V/15A, Black - 6'
Power Supply: Redundant 750W Power Supply with PMBus & PFC - 80 PLUS Platinum
Rail Kit: Quick-Release Rail Kit for Square Holes, Outer Slide Extendable Length 25.6 - 33.05 Inches
OS: Customer declined OS
Management SW: Supermicro Update Manager (SUM) Out-of-Band Management Software
Standard Warranty: 5 Year Silicon Mechanics Standard Warranty - Tier 1 ($0 - 10,000)
NOTE: Advanced Parts Replacement service covers the cross shipping of replacement parts.
Advanced Parts Replacement: 5 Year Advanced Parts Replacement
NOTE: For onsite service, international coverage, or additional options please contact our Sales department.
Notes:
No RAID
No OS
SUM=YES

**** Additional Components ****
Optane: 2 x Intel 280GB 900P Series (3D XPoint, 10 DWPD) HHHL PCIe 3.0 x4 NVMe SSD
Drive: Samsung 512GB SM961 MLC (4GB/s, NVMe) PCIe 3.0 x4 M.2 2280 SSD

== Setup ==

=== Proposed ===

* Ubuntu [http://releases.ubuntu.com/18.04/ 18.04] [https://wiki.ubuntu.com/BionicBeaver/ReleaseNotes (Release Notes)].
** ZFS
*** [https://github.com/zfsonlinux/zfs/wiki/Ubuntu-18.04-Root-on-ZFS Installing Ubuntu on ZFS root using terminal]
*** [https://github.com/zfsonlinux/pkg-zfs/wiki/HOWTO-install-Ubuntu-18.04-to-a-Whole-Disk-Native-ZFS-Root-Filesystem-using-Ubiquity-GUI-installer Installing Ubuntu with ZFS root using Ubiquity]
*** Root pool on spinning disks, either as raid-z2 or a pair of 2 device mirrors.
*** ZIL slog on mirrored Optane drives, consider placing the boot pool ('bpool') here as well.
*** L2ARC on M2 SSD drive.
*** If using legacy BIOS boot mode, install grub to all devices; UEFI requires additional partitioning.
** LXC/LXD

== Services ==

=== Proposed ===

==== Containers ====

LXD based containers:
* Downloads
* Wiki
* Webextra (Foss4g Archives)
* Secure (LDAP)
* NextCloud (for board members)
* Drone

[[Category:Infrastructure]]

SAC:Administrative Access

2018-02-19T22:59:10Z

Wiki-TemptorSent: Update service admin entry points.

=== SSH ===
==== OSUOSL Hosts ====
* osgeo3.osgeo.osuosl.org
** download.osgeo.osuosl.org
** secure.osgeo.osuosl.org (LDAP server)
** tracsvn.osgeo.osuosl.org
** web.osgeo.osuosl.org
** webextra.osgeo.osuosl.org
** wiki.osgeo.osuosl.org
* osgeo4.osgeo.osuosl.org
** adhoc.osgeo.osuosl.org
** projects.osgeo.osuosl.org
** qgis.osgeo.osuosl.org
* [[Osgeo6|osgeo6.osgeo.osuosl.org]]

To login using ssh:
'''ssh''' ''your_osgeo_login'''''@'''''vmname'''''.osgeo.osuosl.org'''

=== Gitea ===
* Private data in SAC git repository is available to SAC members at: https://git.osgeo.org/gitea/sac

=== LDAP ===
* The '''mantra''' to provide when a valid [https://id.osgeo.org/ldap/create new user request] is received is available at: https://git.osgeo.org/gitea/sac/userid-mantra/wiki

=== Trac ===
* Use the 'Admin' tab on the far right of the toolbar in each Trac to access the admin page for that instance; for example: https://trac.osgeo.org/osgeo/admin

=== Wiki ===
* See [[Special:SpecialPages|Special Pages]] for administrative tools and reports.

SAC:Admin and Troubleshooting

2018-02-19T22:32:23Z

Wiki-TemptorSent: Add Administrative Access heading and link.

= Administrative Access =
[[SAC#Members|SAC Members]] may have [[SAC:Administrative Access|administrative access]] to one or more services, depending on their responsibilities.

= Troubleshooting =

* [[SAC:Primary Administrators]] (with contact info)
* Discuss issues in irc (#telascience)

== VM hanging on OSUOSL ==

see [[OSL]] for how to open a ticket with OSUOSL's support

== LDAP Server Down ==

The LDAP server runs on ldap.osgeo.org ([[SAC_Service_Status#Secure|secure vm]]).
If it's down, refer to [[SAC:LDAP Restarting LDAP server]]

sudo /usr/sbin/slapd_db_recover -h /var/lib/ldap/osgeo2

== MySQL Cleanup for Drupal ==
If a report in drupal starts saying a table is crashed and needs repair, log into mysql and run the following, for example for the cache table:
REPAIR TABLE cache QUICK;

[[Category: Infrastructure]]

SAC:Administrative Access

2018-02-19T22:25:16Z

Wiki-TemptorSent:

SAC Service Status

2018-02-19T21:42:15Z

Wiki-TemptorSent: /* Secure */ Remove bogus http protocol link from ldap.osgeo.org

Infrastructure of OSGeo System Administration Committee ([[SAC]])

For emergency plans see: [[SAC:Admin and Troubleshooting]]

= Servers at OSL =
[[OSL | Open Source Labs]] - 4 physical machines containing ''x'' virtual machines.

If VM hanging, see [[OSL]] for how to open a ticket with OSUOSL's support.

All [[SAC#Members|SAC administrators]] have LDAP auth to the OSL Virtual Machines.

To ssh into a server using your LDAP account, you can do the following replacing '''your_osgeo_login''' with your OSGeo login and '''vmname''' with the vm name of the server at OSL.

ssh '''your_osgeo_login'''@'''vmname'''.osgeo.osuosl.org

When prompted for password, use your OSGeo Login password.

[[SAC:Primary Administrators]] also have ssh key access in case LDAP is down and that will also apply to the physical machines. Worst case scenario use the information on [[OSL | Open Source Labs]] to file a ticket (SAC members only). Direct connection to virtual machines is by appending it's vm alias to .osgeo.osuosl.org.

* Live Status via [http://webextra.osgeo.osuosl.org/munin/index.html Munin]

== osgeo3 ==

osgeo3 is a real server managed by OSUOSL and running a virtualization solution (ganeti+kvm) to provide Virtual Machines which are the ones SAC can access and manage. SAC can _not_ access osgeo3 directly, but has to contact OSUOSL for that.

Each of the sections below represent a Virtual Machine and describes which services are running on it, and by which name they are reachable.

=== Wiki ===

See [[OSGeo Wiki]]

=== Secure ===
* Hosts [[SAC:LDAP]] services (ldap.osgeo.org).

=== TracSvnGit ===

* See [[TracsvnVM]] for full details, and some notes on services running here

=== Web ===

* Drupal instances for the [[OSGeo_Portal_Site|main OSGeo web site]] and projects like MapGuide and FDO are hosted here (??).
* Virtual Hosts (on same server)
** http://fdo.osgeo.org
** http://mapguide.osgeo.org
* [[SAC:LDAP|LDAP]] Python Admin Scripts in /usr/lib/cgi-bin
See [[Infrastructure Transition Plan 2010#Final_Plan]] for full details.
* [[Infrastructure Transition Plan 2010#osgeo3_.26_osgeo4]]
* Lots of config information in the [[Migration Documentation]].
* [[SAC:Backups]] describes backup strategy.

=== Base ===
* Template VM used when creating new VMs.
* Not normally running - make a special request to OSL to start it up.

=== WebExtra ===
* See [[WebExtraVM]] for full details (server: http://webextra.osgeo.osuosl.org)
* hosts http://planet.osgeo.org, http://mum03.mapserver.org, http://live.osgeo.org
* http://foss4g.org (main portal) and archive of old sites 2006-2014
* http://conference.osgeo.org - [[Conference System]] (also: [[SAC:Setup_OCS]])
* http://journal.osgeo.org / osgeo.org/ojs - [[Journal System]]
* Redirects for many chapter and other urls handled via /etc/httpd/conf.d/rewrite.conf

=== Download ===
* http://download.osgeo.org ([[Download Server]])

== osgeo4 ==

osgeo4 is a real server managed by OSUOSL and running a virtualization solution (ganeti+kvm) to provide Virtual Machines which are the ones SAC can access and manage. SAC can _not_ access osgeo4 directly, but has to contact OSUOSL for that.

As of February 2018 the osgeo4 machine should be dismissed, moving hosted services
somewhere else (most likely osgeo6 or osgeo7 machine).

=== QGIS @ osgeo ===
* VM used by the QGIS project, http://www.qgis.org
* Shell access only for the [https://www.osgeo.org/cgi-bin/auth/ldap_shell.py?group=qgis QGIS shell access group].

* http://planet.qgis.org/

=== Adhoc ===

* VM used for projects for various adhoc purposes. Risks to system stability that would be unacceptable on the Projects VM may be ok here.
* See [[AdhocVM]] for full details, and some notes on services running here.
* eg http://adhoc.osgeo.osuosl.org/livedvd/docs/en/quickstart/

=== Projects ===

* Most projects have been moved to osgeo6, a list of what remains needs to be made so they can be moved.

== Backup ==
* Backup now runs on dedicated hardware
* Provides Rsync backups of download.osgeo.org
* Provides Bacula backups of various VMs.
* See [[SAC:Backups]] for details.

== osgeo6 ==

* Mail
See [[Osgeo6]] for full details

= Cloud Hosted Servers and other external under SAC Control =

=== CloudVPS.com ===
* [[SAC:betawebsite]] - 141.138.205.23, IPv6 address..: 2a02:348:84:cd17::1, Debian 8 4GB server, host name: osgeo.public.cloudvps.com credentials available on osgeo secure access folder

=== web18a.osgeo.osuosl.org ===
(Cloud hosted server on OSUOSL hardware (not ours) )
* Debian 9.3 4GB server, host name: web18a.osgeo.osuosl.org require ssh key to log in.
* Currently hosts staging.www.osgeo.org, with plans to move www.osgeo.org over here too.
* Setup details on [https://git.osgeo.org/gitea/osgeo/www_apache_configs/wiki/Web18a-setup Web18a setup]

=== staging2.www.osgeo.org ===

* [[SAC:staging2.www.osgeo.org]] - Debian 9.3 VM currently setup on winnie.postgis.net, running PHP7, MariaDb 10.1 for PHP7 testing

=== Atlantic.net ===

* postgis.net, planet.postgis.net, debbie.postgis.net -- all on same Debian 8VM 4GB RAM

= QGIS off OSGeo =
Services on separated machines rented and managed by the QGIS project at hetzner

* website including documentation http://www.qgis.org
* website building, documentation building, debian/ubuntu nightlies, plugins.qgis.org
* issues.qgis.org: redmine

= Historical servers (not more in use) =

- [[Telascience Blades (Historical)]]

[[Category:Infrastructure]]

SAC:Administrative Access

2018-02-19T21:37:01Z

Wiki-TemptorSent: Create stub page for administrative access entry points for SAC.

*SSH
*LDAP
*Wiki
*Trac
*Gitea

SAC:Election to SAC

2018-02-19T21:30:55Z

Wiki-TemptorSent: /* New member motion passed what next */

== Who should join SAC ==

== Getting Elected to SAC ==

SAC members are added by election. A SAC member can ask someone if they would like to be on SAC and if that someone agrees, the SAC member should open up a motion for the person to be added to SAC.

A person (even if not a member of SAC), can take initiative, and ask to be added to SAC via the SAC mailing list.

Once intent has been confirmed, a SAC member (PSC Chair must make the motion if no one else does), will on SAC mailing list, start the motion to add said member to SAC list.

At least 3 members of SAC must agree to the request on the mailing list with a +1, and no -1. All -1s must be discussed and adjudicated before motion to add member can be passed.

== New member motion passed what next ==

Once the motion passes, to add the new member:
* Add member to list of [[SAC#Members]] and indicate their responsibilities if known.
* Based on their responsibilities, the new member may be given additional access and enhanced permissions which may include:
** membership in SAC LDAP group
** membership in shell LDAP group, allowing ssh access
** administrative access to one or more of the following:
*** wiki
*** main website
*** mailing lists

Details on how to access the various administrative areas can be found on [[SAC:Administrative Access]].

SAC Meeting 2018-02-15

2018-02-15T19:47:10Z

Wiki-TemptorSent: /* Trac SVN status */

== Agenda ==

=== Where and When ===
* in IRC on Freenode, channel: osgeo-sac [https://www.timeanddate.com/worldclock/fixedtime.html?iso=20180215T2000 Feb 15 2018 UTC: 8 PM]
** Web IRC client: https://webchat.freenode.net/

=== Go over status of SSLs - FOSS4G2018 ===
[[SAC_Meeting_2018-01-04| January 4th 2018 Meeting]]
* Website code: https://github.com/foss4g2018/foss4g2018
* The code for the payments is also very simple HTML - we'd be happy to host in a single point
** 3rd party payment service: Pesapal
* post-meeting. To be moved to webextra, with ssl in front
** merge them and have the payment site be something like https://2018.foss4g.org/registration
** ragnvald: https://github.com/timlinux/foss4g2018
** Ensure we have continuity within our payment systems

'''<Fill report here>'''

=== New Website status report ===

'''Report:'''
* [Vicky & Jody] Experimented with what can be done on the site.
** Role Incubator & Role Project PSC to handle Projects.
** See the note: https://trac.osgeo.org/osgeo/ticket/2075
** Please decide if those roles can be created on main site
* [robe] Status of staging.www.osgeo.org now setup on web18a.osgeo.osuosl.org (plans to migrate production to there as well)
Eventual shutoff of cloudvps.com hosting

=== Sys Admin Contract ===

* [martin]:
'''<Fill report here>'''

Martin to report on what he's been working on.

=== Migration off old hard-ware AND Virtualization, Containerization, or None ===

* Discussion pending on list (moderator: could not find the mail thread)
* Needs:
** trac is painfully slow (now seems better with Chris Giorgi's recent changes to apache config)
** osgeo6 is running an ancient Debian, needs to be updated

Leaning to libvrt since it can be done with one server (less resource intensive than ganeti), with possibility
of moving to ganeti next year when we get more hardware.

DONE: Alex sent quote to mailing list, [https://drive.google.com/file/d/1X-z66jXXBUZuPqh6EP0d43g2NUCL7xcL/view?usp=sharing Updated Feb 15] ~$6300-7000. Chris Gorgi has some ideas, may provide enhancements
* DONE: provide clarification of new hardware purchase options suitability for hosting type. (wildintellect)
** [https://linuxcontainers.org/lxd/ LXD] was suggested as a drop-in alternative to full Virtualization with [https://www.linux-kvm.org/page/Main_Page KVM] for most service; this more similar to the feel of a virtual machine than say Docker.
** We can mix, nest, and layer both containers and virtualization interchangeably.
** Easy candidates for containers include Downloads and Webextra (FOSS4G) which are static files.
* Suggestions:
** Optane card for extra disk caching beyond memory - Question how do we configure this:
*** 25% is reserved as unallocated to reduce write-wearing and maintain speed over the expected life of the server.
*** A portion (~25-50%) would be allocated to the ZFS L2ARC (or equivalent) to keep warm FS blocks instantly accessible.
*** The remainder is available to be used essentially as a large persistent ramdisk.
** Fill RAM, mostly caches requests, in particular file downloads
*** This will happen automatically as files are accessed and added to the filesystem's cache.
*** Data can be pre-cached simply by accessing the files and directories -- a simple script can run periodically to ensure they are kept marked as hot.
** Larger DWPD rating for SSDs to better handle writes - Question, we didn't do this for OSGeo6, anything we should look out for? Should we estimate life of OSGeo6 drives and replace pre-failure next couple of years.
*** Total write volume can be checked with smart-tools and drives approaching the stated limit should be replaced or move to storage-only applications.
*** Write endurance and long-term speed can be improved by leaving 20-50% of each drive unallocated.
** Mirrored pair of SATA SSDs for write-caching and high io loads.
*** Reserve 25-33% unallocated.
*** Provide ZFS ZIL SLOG with 32-64GB to minimize write latency for data stored on HDDs.
*** The remainder can be used for loads with high mixed read/write transactional loads, such as active databases, mail, etc.
** 4 TB Spinning disks, still plenty of space (7+ usable), takes less time to rebuild on failure, cost diverted to other features.
*** (Please note - an active storage pool should never be filled to more than 2/3 of capacity to avoid serious performance degradation and fragmentation - C.G.)

Any other feedback from others to be discussed

=== Others ===

* Formally ask Chris Giorgi if he'd like to officially join SAC

'''<Fill report here>'''

==== Trac SVN status ====
* Regina looked at postgres load and see if anything amiss there and if any query bottlenecks
Concluded apache is our main issue.
* Chris Giorgi made changes to apache config which helped and suggests adding a [https://trac.osgeo.org/osgeo/ticket/1693 caching nameserver with DNSSec]
* Martin's plans to upgrade OS of trac and other VMS

==== Ticket Triage ====
* More https setup (got a couple of these, last our downloads which seems critical)
* [https://trac.osgeo.org/osgeo/ticket/2115 Bas says we need downloads.osgeo.org under SSL]

* [https://trac.osgeo.org/osgeo/ticket/2116 Add support for registering public user SSH keys in LDAP]

==== GeoForAll DNS====

Jeff to report on status of GeoForALL and other DNS issues he's been fixing

== Minutes ==

=== Attendance ===

=== Full transcript ===

= Details =

= Next Meeting =

Proposed Time: [https://www.timeanddate.com/worldclock/fixedtime.html?iso=20180301T2000 UTC: Thursday, March 1st, 2018 at 8:00 pm]

[[SAC | SAC main page]]
[[Category:Infrastructure]]
[[Category:SAC Meetings]]

SAC Meeting 2018-02-15

2018-02-15T17:57:54Z

Wiki-TemptorSent: /* Migration off old hard-ware AND Virtualization, Containerization, or None */

== Agenda ==

=== Where and When ===
* in IRC on Freenode, channel: osgeo-sac [https://www.timeanddate.com/worldclock/fixedtime.html?iso=20180215T2000 Feb 15 2018 UTC: 8 PM]
** Web IRC client: https://webchat.freenode.net/

=== Go over status of SSLs - FOSS4G2018 ===
[[SAC_Meeting_2018-01-04| January 4th 2018 Meeting]]
* Website code: https://github.com/foss4g2018/foss4g2018
* The code for the payments is also very simple HTML - we'd be happy to host in a single point
** 3rd party payment service: Pesapal
* post-meeting. To be moved to webextra, with ssl in front
** merge them and have the payment site be something like https://2018.foss4g.org/registration
** ragnvald: https://github.com/timlinux/foss4g2018
** Ensure we have continuity within our payment systems

'''<Fill report here>'''

=== New Website status report ===

'''Report:'''
* [Vicky & Jody] Experimented with what can be done on the site.
** Role Incubator & Role Project PSC to handle Projects.
** See the note: https://trac.osgeo.org/osgeo/ticket/2075
** Please decide if those roles can be created on main site
* [robe] Status of staging.www.osgeo.org now setup on web18a.osgeo.osuosl.org (plans to migrate production to there as well)
Eventual shutoff of cloudvps.com hosting

=== Sys Admin Contract ===

* [martin]:
'''<Fill report here>'''

Martin to report on what he's been working on.

=== Migration off old hard-ware AND Virtualization, Containerization, or None ===

* Discussion pending on list (moderator: could not find the mail thread)
* Needs:
** trac is painfully slow (now seems better with Chris Giorgi's recent changes to apache config)
** osgeo6 is running an ancient Debian, needs to be updated

Leaning to libvrt since it can be done with one server (less resource intensive than ganeti), with possibility
of moving to ganeti next year when we get more hardware.

DONE: Alex sent quote to mailing list, [https://drive.google.com/file/d/1X-z66jXXBUZuPqh6EP0d43g2NUCL7xcL/view?usp=sharing Updated Feb 15] ~$6300-7000. Chris Gorgi has some ideas, may provide enhancements
* DONE: provide clarification of new hardware purchase options suitability for hosting type. (wildintellect)
** [https://linuxcontainers.org/lxd/ LXD] was suggested as a drop-in alternative to full Virtualization with [https://www.linux-kvm.org/page/Main_Page KVM] for most service; this more similar to the feel of a virtual machine than say Docker.
** We can mix, nest, and layer both containers and virtualization interchangeably.
** Easy candidates for containers include Downloads and Webextra (FOSS4G) which are static files.
* Suggestions:
** Optane card for extra disk caching beyond memory - Question how do we configure this:
*** 25% is reserved as unallocated to reduce write-wearing and maintain speed over the expected life of the server.
*** A portion (~25-50%) would be allocated to the ZFS L2ARC (or equivalent) to keep warm FS blocks instantly accessible.
*** The remainder is available to be used essentially as a large persistent ramdisk.
** Fill RAM, mostly caches requests, in particular file downloads
*** This will happen automatically as files are accessed and added to the filesystem's cache.
*** Data can be pre-cached simply by accessing the files and directories -- a simple script can run periodically to ensure they are kept marked as hot.
** Larger DWPD rating for SSDs to better handle writes - Question, we didn't do this for OSGeo6, anything we should look out for? Should we estimate life of OSGeo6 drives and replace pre-failure next couple of years.
*** Total write volume can be checked with smart-tools and drives approaching the stated limit should be replaced or move to storage-only applications.
*** Write endurance and long-term speed can be improved by leaving 20-50% of each drive unallocated.
** Mirrored pair of SATA SSDs for write-caching and high io loads.
*** Reserve 25-33% unallocated.
*** Provide ZFS ZIL SLOG with 32-64GB to minimize write latency for data stored on HDDs.
*** The remainder can be used for loads with high mixed read/write transactional loads, such as active databases, mail, etc.
** 4 TB Spinning disks, still plenty of space (7+ usable), takes less time to rebuild on failure, cost diverted to other features.
*** (Please note - an active storage pool should never be filled to more than 2/3 of capacity to avoid serious performance degradation and fragmentation - C.G.)

Any other feedback from others to be discussed

=== Others ===

'''<Fill report here>'''

==== Trac SVN status ====
* Regina looked at postgres load and see if anything amiss there and if any query bottlenecks
Concluded apache is our main issue.
* Chris Gorgi made changes to apache config which helped and suggests [https://trac.osgeo.org/osgeo/ticket/1693 changes to DNSSec]

==== Ticket Triage ====
* More https setup (got a couple of these, last our downloads which seems critical)
* [https://trac.osgeo.org/osgeo/ticket/2115 Bas says we need downloads.osgeo.org under SSL]

* [https://trac.osgeo.org/osgeo/ticket/2116 Add support for registering public user SSH keys in LDAP]

==== GeoForAll DNS====

Jeff to report on status of GeoForALL and other DNS issues he's been fixing

== Minutes ==

=== Attendance ===

=== Full transcript ===

= Details =

= Next Meeting =

Proposed Time: [https://www.timeanddate.com/worldclock/fixedtime.html?iso=20180301T2000 UTC: Thursday, March 1st, 2018 at 8:00 pm]

[[SAC | SAC main page]]
[[Category:Infrastructure]]
[[Category:SAC Meetings]]

PLSS

2018-01-08T21:50:37Z

Wiki-TemptorSent: PLSS - US Public Land Survey System

[[Category:USA]]
= PLSS - US Public Land Survey System =

A system of surveys which forms the basis for most legal land descriptions in the US, except for the older states on the east coast and Texas.

Terms:
* MTRS - Meridian, Township, Range, and Section
* Aliquot Part - Regular subdivisions of a section: half, quarter, quarter-quarter, etc.

https://nationalmap.gov/small_scale/a_plss.html