Windows is AWESOME. Back to Linux.
From Bellingham, there is there really no peering point in Qwest’s backbone to Comcast? It seems preposterous that I takes me 102ms to ping 11 miles. I wish I could brag about biking that fast. But at least I do not have to bike to Florida to get to Ferndale:
traceroute to firewall.candelatech.com (22.214.171.124), 30 hops max, 60 byte packets 1 gateway (192.168.45.1) 0.951 ms 0.703 ms 0.590 ms 2 tukw-dsl-gw66.tukw.qwest.net (126.96.36.199) 23.762 ms 23.282 ms 22.912 ms 3 tukw-agw1.inet.qwest.net (188.8.131.52) 22.525 ms 22.756 ms 22.992 ms 4 nap-edge-04.inet.qwest.net (184.108.40.206) 104.071 ms 104.336 ms 104.139 ms 5 220.127.116.11 (18.104.22.168) 105.126 ms 105.112 ms 106.764 ms 6 be-10-cr01.miami.fl.ibone.comcast.net (22.214.171.124) 106.921 ms be-13-cr01.miami.fl.ibone.comcast.net (126.96.36.199) 105.262 ms 104.893 ms 7 be-15-cr01.ashburn.va.ibone.comcast.net (188.8.131.52) 106.538 ms 107.032 ms 106.481 ms 8 he-0-12-0-0-cr01.losangeles.ca.ibone.comcast.net (184.108.40.206) 111.232 ms 110.836 ms 110.693 ms 9 he-2-8-0-0-cr01.sanjose.ca.ibone.comcast.net (220.127.116.11) 111.653 ms 109.401 ms 109.044 ms 10 18.104.22.168 (22.214.171.124) 106.729 ms 106.942 ms 107.967 ms 11 be-41-sur02.ferndale.wa.seattle.comcast.net (126.96.36.199) 110.153 ms 110.399 ms 110.225 ms 12 te-1-0-0-ten01.ferndale.wa.seattle.comcast.net (188.8.131.52) 116.914 ms 117.572 ms 117.213 ms 13 c-50-135-136-13.hsd1.wa.comcast.net (184.108.40.206) 127.260 ms 154.153 ms 157.281 ms 14 * * *
I did not realize there were 8-core Atom server chips were a THING yet. They..are.
and check this short-case 1U out: http://www.supermicro.com/products/system/1U/5018/SYS-5018A-FTN4.cfm It has QUAD Gig-E ports. Enough for you? 20W processor? That’s better than you can find with an AMD A-series.
I love using the find command. In DOS, find is like grep. In Linux, find is the most powerful recursive DOS dir /s or Linux ls -r command you could ever put your saddle on.
One of the things you can do with find is to avoid directories, using the -prune switch. Like so:
find /usr/local -type d -a \( -name jre1.6.0_38 -prune -o -type d -print \)
Yeah, put your bike helmet on if you keep reading. That spat out a ton of gook. But was I lying? Well, grep out everything but what we should have pruned:
find /usr/local -type d -a \( -name jre1.6.0_38 -prune -o -type d -print \) | grep jre1.6
What if you have a series of subdirectories you want to include, but you cannot write enough -prune switches for them? This is a problem I frequently have. For instance, how do you exclude all your Firefox Cache directories, especially if you have multiple profiles? Great question.
I’d first use find to find all the directories I
do want to backup:
find /home/jed -maxdepth 4 -type d > /tmp/dirlist
Then you grep out things you really don’t want:
egrep -i "/cache|/Trash" /tmp/dirlist > /tmp/avoid
Then parse it into things you do want to find to avoid:
cat /tmp/avoid | while read F ; do echo " -path $F -o " ; done > /tmp/avoid2 ; echo "-path ./asdf" >> /tmp/avoid2
Now we can refresh our list of directories to descend:
find . -xdev -depth -type d \( `cat /tmp/avoid2` \) -prune -o -print
If we want to turn that right into files, modify the last print statement to find files:
find . -xdev -depth -type d \( `cat /tmp/avoid2` \) -prune -o -type f -print
Now if you want to find the files more recently created than your last backup in /home/backup/monday.tgz, try this:
find . -xdev -depth -type d \( `cat /tmp/avoid2` \) -prune -o -type f -newer /home/backup/monday.tgz -print
Is that enough to make you cry? Chin up, think of all the disk space you’re saving, and how much faster a specific backup can occur. This means you can run backups every 15 minutes.
I’ve been computing at a standing workstation since 2010, and since then I haven’t had my lower back bother me for a while. When beginning my new job at Candela Technologies, I got a new workstation and decided to build…eh…over-build an adjustable multi-monitor standing workstation. Turns out it looks a lot like a mining frame from the 19th century. Wish I had some brass parts, then it would be Steampunk.
I really did want to do the triple-portrait mode for my monitors, but while I’m sure I could have gotten some magic done with Xrandr, I did need to get to work, and the ATI driver would not correctly generate something that Java, XFCE, Gnome or Unity would display properly on. I took this into account when building the swing-arms, so I use it landscape mode.
The amount of computer waste in this world is staggering.