1. 5f. GSICS Wiki Overview and NOAA GSICS THREDDS Service Overview
08 June 2018
5f. GSICS Wiki Overview and NOAA GSICS THREDDS Service Overview
Yuanzheng (Jordan) Yao
2017 GSICS Annual Meeting
Mar 22, 2017

2. Outline System (hardware/software) Overview Alia Name
Security and Backup
Working Status
NOAA GSICS THREDDS Service Overview

3. New GSICS WIKI SERVER Started On April 2016
As scheduled
All Contents are migrated
from the old serve
All parts of work are working as expected
The old server
(gsics.nesdis.noaa.gov)
is offline now
My Actions from 2016 GSICS Annual Meeting
GDWG c.1: To inform the groups about the
new security of the new server, and the backups
(completed on )
GDWG c.2: To inform workgroup members a week in advance and to switch to the new server (UMD), and decommission the NOAA server (completed on )
GDWG c.3: To check how long the URL of
new Wiki would be shown on the current Wiki at
NOAA (completed on ).

4. Technical Details Hardware Software Apache HTTPD
Linux, 64 cores, 256GB memory,
OS: redhat 7
Software
Apache HTTPD
Foswiki version v2.1.2, Release Foswiki-2.1.2, Plugin API version 2.4
Support Perl Modules
Other Apps
Separate
Storage used for backup

5. Domain Name: gsicswiki.net
Reserved from Godaddy
We reserved gsics.info as well
Two-years term

6. Security and Backup
Besides standard Linux system security setup and wiki username/password protection, no extra security setup
Contents and setup files are fully backed up every month.
Every day and every Sunday, full backup are made as well, but overwritten the previous one.

7. Problems Found and Solved
System power down 3-4 times a year.
System was upgraded a couple times a year. Each upgrade caused Perl libraries erased, which requires a reinstall.
Some pages have links pointing to old NOAA server. They need to be fixed one by one (Please report any additional problems whenever they were found)
New functions required new plugin apps.
Home page is /gsicswiki.net/wiki, not /gsicswiki.net

8. Why the home page has to be http://gsicswiki
Why the home page has to be but not ?
When wiki is migrated from one system to another, the inside link addresses and file locations are not changed. Instead, the system is configures as “whenever see the old address, use the new address instead” (see the black path in fig).
The home page is on the old server. If we set gsicswiki.net as home, the system actually will assume that is at the location :gsics.nesdis.noaa.gov/wiki. Then requests to will be searched at gsics.nesdis.noaa.gov/www/filepath
replace gsicswiki.net with gsics.nesdis.noaa.gov
gsics.nesids.noaa.gov/filepath
gsics.nesdis.noaa.gov/filepath
Gsics.nesdis.noaa.gov/www/filepath

9. NOAA THREDDS Service Switched to the new THREDDS server :
Latest Catalog files update was done on August 2016.
Main products:
GEO-LEO IR:
GOES-13, GOES15 vs Metop-A (NRTC and RAC)

10. NOAA THREDDS Service (cont.)
Remote Access is enabled:

11. Summary The new GSICS wiki service is set outside of NOAA
It is ready for use
Frequent back up is set up
The old wiki server is offline
NOAA THREDDS Service is moved to a new server

12. Thank You