Posts by scottk:
IOstats
Linux server IO utilitzation:
iostat -d -x <wait> <count>
Things to note from output:
r/s and w/s (reads and writes per second)
svctm ( average service time per request)
%util (Percentage of CPU time during which IO requests issued to the device. Device saturation occurs as this approaches 100%)
combined info from the iostat man page and here
quick script to pull load average
Needed to code up something rather quickly today to monitor load average on our servers and send a notification. I should look into getting OpenNMS to do this, but it only took a few tweaks to an existing program to create this. Before hand you need nmap running and creating the servers.txt and SNMP setup […]
damn IE and pdfs
I was having some issues with pdfs mysteriously not downloading from our image server. Like all things that seem to be an extreme pain in the ass, this behavior seemed to also be an IE and Windows tied behavior. After much searching I ran across the server.range-requests setting in lighttpd which seems to have fixed […]
rhel ipv6
/etc/sysconfig/network NETWORKING_IPV6=no /etc/modprobe.conf add: alias net-pf-10 off alias ipv6 off Stop the service: service ip6tables stop Disable the service: chkconfig ip6tables off
Differ
In this article on Firefox3 there is this quote: “IE is the browser of choice for more people on the Web than anything else,” Hachamovitch said. “There’s an all-around quality, whether in ease of use, reliability, the security we stand by, that makes it a better choice.” I beg to differ here. IE is not […]
turn off ipv6 in ubuntu
sudo vi /etc/modprobe.d/aliases Find the line: alias net-pf-10 ipv6 change to alias net-pf-10 off reboot price viagra pharmacy online phentermine online description price best price 100mg viagra and overnight price of generic meridia effexor and topamax interactions aqnd anxiety buy sildenafil citrate lithium order the drug zyban cheap phentermine no rxx buy xanax prescription consultation […]
Application Virtualization
I’ve seen it to some degree, but I wonder when application virtualization will hit big. I can fire up VMWare now and run a load balancer or other apps from within a virtual linux box, that’s the start. Will it take long to realize maybe we should open Outlook in some sort of micro virtualized […]
good day
I managed to do three “got my shit to work” victory dances today. Yes, I actually do a physical dance, almost as goofy as most NFL players endzone dances. The first was a minor thing, I got the MyBook mounted to the Logs server via USB and started to move off 500GBs of access logs […]
big numbers
Thursday is sons and daughter day at work so I was thinking I should get some sort of number of the amount of traffic we do in a certain period of time to throw out. I knew we were sitting at around 50 million page views per month for the site, but we get a […]
Pro Curves
This last Tuesday I took some time out to head over to a HP Procurve Seminar that was going on across the street from my office. We’re moving to downtown KC this fall and we’ll be putting in a new network infrastructure and most likely a new Voip system. The Procurve switches are on our […]