'protocol field'
- 1 : ICMP
- 2 : IGMP
- 6 : TCP
from http://ko.sdndev.net/2 | |
---------------------------- | |
ip netns add netns1 | |
ip netns exec netns1 ip link list | |
ip netns exec netns1 ping 127.0.0.1 | |
ip netns exec netns1 ip link set dev lo up | |
ip link add veth0 type veth peer name veth1 |
docker run -t -i ubuntu:14.04 /bin/bash | |
docker inspect -f '{{.State.Pid}}' a8658e32e8fd | |
docker pull training/sinatra | |
docker run -t -i training/sinatra /bin/bash | |
gem install json | |
docker commit -m="Added json gem" -a="Kate Smith" 0b2616b0e5a8 ouruser/sinatra:v2 | |
docker history iamteri/sinatra:v2 |
[run groovy script by java command] | |
java -cp lib/groovy-all-1.8.0.jar groovy.ui.GroovyMain test.groovy | |
nohup java -Duser.timezone=Asia/Seoul -cp lib/*: groovy.ui.GroovyMain script/findBadGps.groovy >> system.log 2>> error.log & | |
[String Interpolation] | |
value = 6 | |
println "The value is $value." | |
[x] | |
docker run -ti --rm \ | |
-e DISPLAY=$DISPLAY \ | |
-v /tmp/.X11-unix:/tmp/.X11-unix \ | |
firefox | |
[watch] | |
watch -n 1 docker ps | |
[script] |
############################################ | |
# [Stream PassThrough TrafficMeter] | |
util = require 'util' | |
PassThrough = require('stream').PassThrough | |
clientTraffic = {} | |
vboxmanage hostonlyif remove vboxnet0 |
Ctrl+Tab : swtich 'vertex select', 'edge select', 'face select' |
High level consumer : I just want to use Kafka as extermely fast persistent FIFO buffer and not worry much about details. | |
Low level consumer : I want to have a custom partition data consuming logic, e.g. start reading data from newly created topics without a need of consumer reconnection to brokers. |
db.path.aggregate( | |
[ | |
{ | |
$group : { | |
_id : "$hour", | |
count: { $sum: 1 } | |
} | |
} | |
] | |
) |