cyborgworkshop.org

Get the PID of an application pool in iis 6.0

jason — Wed, 25 Aug 2010 16:52:49 +0000

All of the IIS process’s show up as the same process name, which makes it really challenging to figure out which of your websites has lost it’s mind. In order to trace an IIS website or application pool back to a PID, you just need to open a command prompt and run the iisapp utility.
iisapp
Outputs
W3WP.exe PID: 7424 AppPoolId: Site1
W3WP.exe PID: 8096 AppPoolId: JoesSite
W3WP.exe PID: 13080 AppPoolId: Wookielove.com

And now you can just use taskmanager to track resource usage to a site.

Enabling SNMP on an ESXi 4 free edition

jason — Sun, 01 Aug 2010 18:05:05 +0000

ESXi doesn’t include a lot of the management functions that the licensed product carries (see my previous post on doing backups in ESXi) but most of those functions are already installed, just disabled. Here is how to enable SNMP queries and traps on an ESXi server.

Enable ssh on your server
I’m assuming you have already licensed your server, we’re going to need to back that out so ssh to the server as root
run the following commands

mv /etc/vmware/vmware.lic /etc/vmware/vmware.lic.orig mv /etc/vmware/license.cfg /etc/vmware/license.cfg.orig services.sh restart

That will temporarily put you back into an eval license, you will be disconnected from your vsphere client while the services restart
Now you need access to the ESX remote command line. You can do that by either downloading and installing the appliance or you can install it locally on your machine.
Configure SNMP for your environment. -c is the snmp community you want to set for queries and -t is the trap destination

vicfg-snmp.pl –server 192.168.1.1 -c public -t 192.168.1.2@162/public

enable snmp

vicfg-snmp.pl –server 192.168.1.1 -E

Test your new snmp config

vicfg-snmp –server 192.168.1.1 -T

and lastly, download the snmp MIBs for your management platform
Now move your license keys back

mv /etc/vmware/vmware.lic.orig /etc/vmware/vmware.lic mv /etc/vmware/license.cfg.orig /etc/vmware/license.cfg services.sh restart


And that's it, you have snmp queries and traps on your ESXi server now.



Backing up an ESXi 4 server
jason — Sat, 31 Jul 2010 15:21:17 +0000
ESXi is one of my favorite products on the market and is really excellent for home use.  It’s missing out on a few enterprise features like SNMP (I’ll show you how to get around that in a later post) but is otherwise very complete.  I had previously been using a separate storage server using iscsi for my vmfs, but the dependency of the two boxes kept me from shutting down either server as needed. So, I converted everything back to local SATA storage (another post) and went on a hunt for how to backup my VMDKs.  My iSCSI SAN had dual power supplies, 2 hot standby drives and I could do snapshot based backups whenever I wanted. My ESXi server has two SATA drives, one power supply and no easy way to backup. Enter GhettoVCB. GhettoVCB is a brilliant little shell script that runs on the ESXi server and performs backups of your vms using snapshots that can be stored on local, attached or network storage.  Getting GhettoVCB up and running isn’t difficult at all, you just need to make sure you have a few things in place first.

A place to store the backups (NFS, iSCSI, Local storage and potentially DAS)
Decide how many backups you want to have available
Decide How you want to store the files (thin, thick, etc) This consideration will impact how many backups you have available because of the different space requirements.
And lastly when you want your backups to run.

I’ve decided to take thin copies of my vmdks at midnight every night and store them on an NFS share with 5 backups available before the older ones get replaced.  I’m not going to try to replicate the excellent instructions that already exist for GhettoVCB,  but here is how I did it.

Create an NFS mount on my NFS server with the following options
/mnt/raid5/VMWare       10.0.0.0/24(rw,async,all_squash,anonuid=99,anongid=99)
Mount the NFS share in vSphere and call it Backups
enable ssh on your ESXi server
scp ghettovcb.tar.gz to your ESXi server
untar ghettovcb.tar.gz to /usr/ghettovcb
edit ghettoVCB.sh and change VM_BACKUP_VOLUME to be VM_BACKUP_VOLUME=/vmfs/volumes/Backups
edit DISK_BACKUP_FORMAT to be DISK_BACKUP_FORMAT=thin
edit VM_BACKUP_ROTATION_COUNT to VM_BACKUP_ROTATION_COUNT=5
edit EMAIL_LOG to EMAIL_LOG=0  unless you want to setup logs to be emailed to you.
edit cron by running this command
echo "0 6 * * * /usr/ghettoVCB/ghettoVCB.sh -a > /var/log/ghettoVCB-backup-$(date +\%s).log" >> /var/spool/cron/crontabs/root

kill $(cat /var/run/crond.pid)

busybox crond 
My cron is set for 6am because my clock is set to UTC, to 6am is midnight for me
Wait until midnight for the cron to run or run it by hand yourself.

Logs will be stored in /var/log/  .  I’m backing up 8 VMs in roughly an hour using about 60GB of space (thin provisioned) and have tested restores successfully. Good luck and let me know if you have any issues!



Get a windows hostname from an IP using netbios
jason — Fri, 23 Jul 2010 13:35:15 +0000
I’ve run into a situation a couple of times now where DNS hasn’t been setup correctly and I have no idea what hostname an IP resolves to.  For better or worse, windows has the netbios system that keeps it’s own naming services and can be queried from the command line using nbtstat.



nbtstat -A XXX.XXX.XXX.XXX



Where XXX is the IP address that you are trying to resolve. 



WHIA goal achieved
jason — Fri, 18 Jun 2010 02:55:49 +0000
Right as I started rebuilding WHIA, I realized my goal had been achieved.  My loft was now within 2 degrees of my main floor at all times and humidity was flat across the house, excluding the basement!  What was the magic bullet you ask?  I killed all of the return vents on the main floor forcing return air to only come from upstairs and then installed a 70 inch (!) ceiling fan on the main floor pushing air up into the upstairs.  That took care of it, WHIA is still doing it’s thing, but it’s pretty much just running all vents wide open all of the time now. Somewhat of a let down to be real honest.  I still have all of the parts and would still like to move on to v2, but it’s hard to say when that is going to happen now.