September 2011
1 post
Python 2.7 by default disables DeprecationWarnings.
Re-enable in development using:
python -Wdefault script.py
May 2010
1 post
Disable CD/DVD in OS X
cd /System/Library/Extensions
sudo kextunload IOSCSIArchitectureModelFamily.kext/Contents/PlugIns/IOSCSIMultimediaCommandsDevice.kext sudo kextunload IOBDStorageFamily.kext sudo kextunload IODVDStorageFamily.kext sudo kextunload IOCDStorageFamily.kext
April 2010
1 post
hashable objects in Python
If a class does not define a __cmp__() or __eq__() method it should not define a __hash__() operation either; if it defines __cmp__() or __eq__() but not __hash__(), its instances will not be usable in hashed collections. If a class defines mutable objects and implements a __cmp__() or __eq__() method, it should not implement __hash__(), since hashable collection implementations require that a...
March 2010
3 posts
Quagga: using SNMP
snmpwalk -c public -v1 localhost .1.3.6.1.2.1.2
In netkit, Quagga by default has net-snmp support.
Steps to get it working:
/etc/snmp/snmpd.conf
#
# example access restrictions setup
#
com2sec readonly default public
group MyROGroup v1 readonly
view all included .1 80
access MyROGroup “” any noauth exact all none none
#
# the following line is relevant for Quagga
#
...
P.S. [OT]: The cisco command I use to disable the pager is:
# terminal length 0
http://www.velocityreviews.com/forums/t330934-pexpect-module.html
Quagga:
dump bgp routes-mrt path
not
dump bgp routes path
February 2010
4 posts
Powerful plug-in that enables Mac apps to leverage the color themes of the kuler community:
http://www.lithoglyph.com/mondrianum/
curl to resume a file killed in firefox/safari/etc:
curl -o ‘myfile.zip.part’ -C - ‘http://download.com/myfile.zip’
-o to specify diff output file
-C to specify resume
-C - to resume and auto work out where to resume from
bit after -C - is the url of the file to resume
Python: Elements common (or not) to two lists:
diff_list = filter( lambda x: x not in listA, listB)
diff_count = len(diff_list)
Regexhibit: OSX application for testing regular expressions.
http://homepage.mac.com/roger_jolly/software/#regexhibit