linux 技巧：使用 screen 管理你的远程会话

http://www.ibm.com/developerworks/cn/linux/l-cn-screen/

screen + 命令


C-a ? 显示所有键绑定信息
C-a w 显示所有窗口列表
C-a C-a 切换到之前显示的窗口
C-a c 创建一个新的运行shell的窗口并切换到该窗口
C-a n 切换到下一个窗口
C-a p 切换到前一个窗口(与C-a n相对)
C-a 0..9 切换到窗口0..9
C-a a 发送 C-a到当前窗口
C-a d 暂时断开screen会话
C-a k 杀掉当前窗口
C-a [ 进入拷贝/回滚模式

Lazy Linux: 11 secrets for lazy cluster admins
http://www.ibm.com/developerworks/linux/library/l-11sysadtips/index.html

The secrets are

1. Don't reinvent the wheel.
2. Use open source.
3. Automate everything.
4. Design for scale - plan to be lazy from the start.
5. Design for hardware manageability.
6. Use good cluster management software - don't dig wells with teaspoons.
7. Use open source monitoring solutions.
8. Control your users with a queuing system.
9. Verify you get what you pay for - benchmark it!
10. Manage cluster communication.
11. Look for ways to become lazier.