Add a column to numpy 2d array

https://stackoverflow.com/questions/8486294/how-to-add-an-extra-column-to-an-numpy-array

https://stackoverflow.com/questions/36878089/python-add-a-column-to-numpy-2d-array

https://stackoverflow.com/questions/37743843/python-why-use-numpy-r-instead-of-concatenate

https://stackoverflow.com/questions/18601001/numpy-r-is-not-a-function-what-is-it

https://stackoverflow.com/questions/14468158/understanding-the-syntax-of-numpy-r-concatenation

多段线简化

https://github.com/omarestrella/simplify.py

https://www.npmjs.com/package/line-simplify-rdp

https://www.jasondavies.com/simplify/

https://bost.ocks.org/mike/simplify/

http://desktop.arcgis.com/zh-cn/arcmap/10.3/tools/cartography-toolbox/simplify-line.htm 

ssh端口转发

https://www.ibm.com/developerworks/cn/linux/l-cn-sshforward/index.html

How to SSH to a VirtualBox guest externally through a host

https://stackoverflow.com/questions/5906441/how-to-ssh-to-a-virtualbox-guest-externally-through-a-host

 

VirtualBox lab: Port Forwarding 

python rq

http://blog.stefsy.com/task-queues/

http://www.boredhackerblog.info/2017/01/python-rq-example.html

http://python-rq.org/

https://www.fullstackpython.com/redis-queue-rq.html

https://superuser.com/questions/504892/how-do-i-restart-redis-that-i-installed-with-brew

基于 spiped 建立一个安全的 Redis 集群

Redis Security

SSH keys

 https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/

https://wiki.archlinux.org/index.php/SSH_keys_(%E7%AE%80%E4%BD%93%E4%B8%AD%E6%96%87)


http://roclinux.cn/?p=2551