SL7ServicesServersUpgrade < DICE

DICE Web>SL7ServicesServersUpgrade (10 Jan 2018, RossArmstrong) (raw view)EditAttach

Zapped defunct content and replaced with simple list of SL6 machines still to go:

| *host* | *description* | *notes* |
| babbler | Informatics Jabber server - KVM guest on oyster, in Forum server room | roger |
| barb | git and gerrit | craig - replaced by cory |
| tench | git server | craig -replaced by plec |
| collins | CUPS server | craig - replaced by blenny |
| crunchie | "Mail: Main Informatics Mail Server" | neil - will be replaced by flakey |
| knox | cvs/svn.inf | roger - replaced by wishart |
| sanremo |  Bugzilla server bugzilla.inf.ed.ac.uk  | neil - replaced by sanremosl7 |
| lammasu | Fileserver and private AFS server for npt | neil |
| mariona | redmine | kill/gordon? |
| fantoosh | SL6 homepages and wiki server | neil - will be replaced by bahookie |
| toaster | Web: groups.inf web server | neil |
| wafer | Web: www.inf.ed.ac.uk and various Institutes | neil - Planning on VM'ing but will need 200+GB just for data |
| canny | DR Web: www.inf.ed.ac.uk and various Institutes | neil - Planning on VM'ing but will need 200+GB just for data |
| %CALC{"$EVAL($LISTSIZE($ABOVE()) - 1)"}% | | |

SL7 machine total = 79
SL6 machines still running a live service = 7

---++ Notes

---+++ VM space

For the services we are planning on VM'ing. The current free space on the VMhosts are:

| *Forum* |
| girassol - 130GB |
| gaivota - 1000GB |
| azul - 16GB + 950GB |
| *KB* |
| amarela - 480GB |
| vermelha - 650GB |

Are MPU happy for me to grab 300GB from gaivota and 200GB vermelha?

---+++ Apache 2.4

Though apache 2.4 ships with a compatibility module to allow old style "allow/deny" and the new "require host" directives. The recommendation is that you don't mix and match those directives. Indeed I had problems debugging access problems when trying to use both, so I've been simply disabling the compatibility module <code>!apacheconf.moduleactive_access_compat mSET(no)</code> to force only the new "require" way. Any .htaccess or config that then contains the old access directives throws an apache error.

For the main web servers, homepages, groups, www. The plan will be (ahead of time) to update config something like:
<pre>
  &lt;IfVersion < 2.4>\n
  order deny,allow\n
  deny from all\n
  &lt;/IfVersion>\n
  &lt;IfVersion >= 2.4>\n
  Require all denied\n
  &lt;/IfVersion>\n
</pre>

And provide docs on computing.help for users.

-- Main.NeilBrown - 05 Jun 2017

Topic revision: r12 - 10 Jan 2018 - 12:52:18 - RossArmstrong

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