diff options
Diffstat (limited to 'content/posts/2007-09-25-a-slwo-transition-to-a-new-server.html')
| -rw-r--r-- | content/posts/2007-09-25-a-slwo-transition-to-a-new-server.html | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/content/posts/2007-09-25-a-slwo-transition-to-a-new-server.html b/content/posts/2007-09-25-a-slwo-transition-to-a-new-server.html new file mode 100644 index 0000000..54837c4 --- /dev/null +++ b/content/posts/2007-09-25-a-slwo-transition-to-a-new-server.html @@ -0,0 +1,46 @@ +--- +date: "2007-09-25T07:29:04Z" +title: A Slwo Transition to a New Server +--- + +<p>We're finally upgrading to a new web server. I've spent the last week moving a couple of +domains a night from our current colo to the new machine. We're getting a +massive hardware upgrade; the old machine is a 1.7GHz Celeron +with 512 megs of RAM, and the new machine is a Dual 2.8GHz Xeon with 2 +gigs of RAM. </p> + +<p>In addition to the beefier hardware, I'm also migrating us from <a href="http://exim.org/">Exim</a> +to <a href="http://postfix.org/">Postfix</a>, upgrading to MySQL 5, Apache 2, and PHP 5, and, most +importantly, segregating web, database, email, and nameserver bits into +their own <a href="http://linux-vserver.org/">VServers</a>. </p> + +<p>The net result of all of this will be a system that's more secure, much +easier to administer, and significantly faster. </p> + +<p>I'm particularly exited about the move to VServers. We've had a few +"trouble" users in the past who used more than their fair share of +CPU, memory, or disk space. With the old system my only real options +were</p> + +<ul> +<li>ask the person nicely to behave</li> +<li>disable the offending content and/or lock out their account, or</li> +<li>fix the offending PHP/SQL/whatever by hand</li> +</ul> + +<p>I was never particularly happy with any of those options. With the new +setup, I can just isolate the offending user's content on a separate +VServer, and throttle whatever resource they're abusing to an acceptable +level.</p> + +<p>There are other advantages, too. A couple of past upgrades have had +"issues". Specifically, a new package I need to install wants to +upgrade a bunch of core libraries, which, in turn, force upgrades to +daemons I'd rather not mess with (I'm looking at you, <a href="http://dovecot.org/">Dovecot</a>). +The VServers allow us to quickly create throw-away machines to test +upgrades and to isolate installations and upgrades to the services they +apply to.</p> + +<p>Stay tuned...</p> + + |