alloc_young的专栏

linux network namespace offer an intra net in our network. A network namespace includes ethernet interfaces and ip routes.linux network namespace offer mechanism to separate different networks , whi

See more details: http://unixwiz.net/techtips/ssh-agent-forwarding.htmlHow to enable ssh agent:on server A: enable it on /etc/ssh/sshd_configAllowAgentForwarding yesssh to server A with option

From wiki:avahi is a free zero-configuration networking (zeroconf) implementation, including a system formulticast DNS/DNS-SDservice discovery.Avahi is a system which enables programs

from: https://www.osso.nl/blog/daemon-reparented-init-user/While I was battling an obscure Ubuntu shutdown issue — more about that later — I noticed that daemonized jobs started from my X se

https://wiki.archlinux.org/index.php/Persistent_block_device_naming

1. git checkout to previous branchgit checkout -like cd -,  - is an abbreviation of @{-1}, @{-n} denotes the nth previous branch.2. @{n}, ref@{n} the nth rev of ref/current branch git show @{1

xterm config

Please ref to this page: http://www.ibm.com/developerworks/cn/linux/l-cn-screen/screen basic usage:1. screen can exit if even you log out or ssh session terminated. That feature is very usefull

create a new xterm window and run some command, after the command executed, keep the window.xterm -hold -e "cmd"

http://techtinkering.com/2013/04/02/connecting-to-a-remote-serial-port-over-tcpip/

-- means options end, see man rm for details.touch --  -test.logrm -- -test.log

http://ergoemacs.org/emacs/elisp.html

步骤：1.启动一个process， 如top，按CTRL-Z 将target process 放入background task2. resume the process in background: bg 3. disown top4. open an session5. reptyr pidoftarget参考：https://blog.ne