tcpdump -A -s 10240 'tcp port 8080' \ | egrep --line-buffered "^........(GET |HTTP\/|POST |HEAD )|^[0-9][0-9]:[0-9][0-9]|^[A-Za-z0-9-]+: " \ | sed -r 's/^........(GET |HTTP\/|POST |HEAD )/\1/g; s/^([0-9:\.]*) IP .*/\n\1/g'
Nov 072018
Sep 112018
for D in *.mp4; do
NAME=$(echo $D | cut -f 1 -d \.)
ffmpeg -i $D -vf fps=1/20 $NAME-%03d.jpg
convert -resize 320x240 -delay 30 -loop 0 $NAME-*.jpg $NAME.gif
rm $NAME-*.jpg
done
Sep 232017
aws route53 change-resource-record-sets --hosted-zone-id $(aws route53 list-hosted-zones | grep -B 1 '"xiehang.com."' | grep '"Id"' | cut -f 4 -d \" | cut -f 3 -d /) --change-batch file://<(echo '{"Changes":[{"Action": "DELETE","ResourceRecordSet":' $(aws route53 list-resource-record-sets --hosted-zone-id $(aws route53 list-hosted-zones | grep -B 1 '"xiehang.com."' | grep '"Id"' | cut -f 4 -d \" | cut -f 3 -d /) --query "ResourceRecordSets[?Name == 'to-be-deleted.xiehang.com.']" --max-items 1| egrep -v '^\[|^\]')'}]}')
Or as a script:
ZONE_ID=$(aws route53 list-hosted-zones | grep -B 1 '"xiehang.com."' | grep '"Id"' | cut -f 4 -d \" | cut -f 3 -d /)
RECORD=$(aws route53 list-resource-record-sets --hosted-zone-id ${ZONE_ID} --query "ResourceRecordSets[?Name == 'to-be-deleted.xiehang.com.']" | egrep -v '^\[|^\]' --max-items 1)
JSON='{"Changes":[{"Action": "DELETE","ResourceRecordSet":'${RECORD}'}]}'
aws route53 change-resource-record-sets --hosted-zone-id ${ZONE_ID} --change-batch file://<(echo ${JSON})
Jul 272017
Google offers life time free tier: https://cloud.google.com/free/
Running this and couple of other websites on GCE now, saves me several bucks a month 😀
Feb 192016
Thanks Let’s Encrypt, I’m running HTTPS now.
Nov 142015
I plan to get these done in the coming 6 months:
- Migrate 25K LOC python to Go, I’m proud to say 16K LOC are unit tests
- Find a reliable redis solution
- Evaluate Shinken
- Downgrade instance for this site
Jul 142015
This is my naive conclusion from short time of observation, everybody hates dealing with multiple ticketing systems, and it seems to me JIRA is much more clear as a “ticketing system”, but corporate/enterprise still prefers Rally, why?
Well, it’s because of corporate cares more about process, care about how much time people spent, either want to track workload, or just want to make sure employees are doing real jobs. On the other size, startups care about getting things done, they really don’t care, or have no time to care about workload, and trust people in the company are willing to take things whenever they are free.
I would like to see how other people think about this.
Jun 262015
Great post: http://docs.openstack.org/developer/devstack/guides/single-machine.html
And now I’m running a private cloud on my server, it’s good enough to test OpenStack stuffs.
May 252015
Just to remind myself in case I get lost again:
- Install Oracle JRE 7, at least for now JRE 8 is not recommended
- Edit /etc/apt/sources.list.d/webupd8team-java.list with these lines:
deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main
- Import GPG
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
- Install
sudo apt-get update sudo apt-get install oracle-java7-installer
- Edit /etc/apt/sources.list.d/webupd8team-java.list with these lines:
- Install Cassandra
- Edit /etc/apt/sources.list.d/cassandra.source.list with these lines
deb http://debian.datastax.com/community 2.1 main deb-src http://debian.datastax.com/community 2.1 main
- Import keys
curl -L http://debian.datastax.com/debian/repo_key | sudo apt-key add -
- Install
sudo apt-get update sudo apt-get install cassandra
- Edit /etc/apt/sources.list.d/cassandra.source.list with these lines
Apr 082015
git rebase -i --root develop