三分热度://柴锋

• Set Up a Debian or Ubuntu Machine as a Maildrop – Webmonkey
  (tags: webmail ubuntu tutorials tutorial sysadmin server opensource mailserver mail)
• mozdev.org – rip: index
  Rip (Remove it Permanently) provides the ability to point at and remove permanently any item you can select. It provide a flexible and easily configurable solution to removing unwanted content from a web page.
  (tags: web useful tools software scripting rip remove plugins plugin internet firefox mozilla)

• 爱烛网-国内首家专业蜡烛和烛台网站
  专门卖蜡烛的网站，无论是目标还是专业都是非常的专一
  (tags: china shop shopping candle)

• just ping – Online ping – Online web-based ping: remote ping a server or web site using our network with 30 checkpoints worldwide
  Ping 一下网站，看看从全球各个地点的访问速度
  (tags: ping webmaster ip free tools online internet useful tool utilities web utility network server hosting monitoring testing performance monitor networking website sysadmin services service)

在一台机器上运行多个 Tomcat 的时候，需要修改 server.xml 中的好几个端口。
vim $CATALINA_HOME/conf/server.xml

在 VIM 中用下面的替换可以迅速的给每个端口加1，也就是把 8080 变成了 8081，等等

:%s/\([pP]ort\)=”\([0-9]\+\)”/\=printf(“%s=\”%d\””,submatch(1),submatch(2)+1)/g

或者用下面的替换可以迅速的给每个端口前增加一个数字，下面的例子是增加 4，也就是把 8080 变成了 48080，等等

:%s/\([pP]ort\)=”\([0-9]\+\)”/\1=”4\2″/g

• Unix System Adminstration DeCal, Spring 2008
  (tags: education e-learning course sysadmin linux free programming reference guide learning admin tutorial unix online)

• Copy your files faster with TeraCopy
  一个很不错的专用于文件复制的工具，复制的速度更快更方便
  (tags: windows vista utility utilities transfer tools tool teracopy software sysadmin)
• DesignShell.Com Home Design, Modern Furniture, Free Home Design Guide with Online Home Design Tips and Tricks
  家具设计
  (tags: furniture design home)
• Turn Your Ubuntu Hardy to Mac OSX Leopard – Make Tech Easier
  把ubuntu的界面变成osx的，看上去还真是逼真
  (tags: ubuntu tutorials tutorial tips themes theme software osx)
• NASA Images
  NASA 的影音库，开放了好多历史珍贵的照片和视频
  (tags: video space science reference pictures photos photography photo nasa free)

• JS-Kit: Navigator, comments, reviews, ratings, scores, polls and more…
  (tags: javascript widgets tools ajax web2.0 webdesign comments tracking utilities web useful webapp webapps webdev webdevelopment website widget script scripting resource toolkit socialnetworking socialnetwork social services service Scripts communication community cool development free hosting)

• SNS网站的用户流失率怎么会高得如此惊人？ | 我的爬行JI
  (tags: sns social network socialnetworking)

• HtmlCleaner Project Home Page
  一个java开源的html解析库，与htmlparser类似，但是可以把html转换成xml
  (tags: html java parser XML opensource library web xslt converter toolkit utilities webdevelopment programming source sourceforge lib libraries)

• eCalc- the best online Calculator
  在线科学计算器
  (tags: calculator tools math mathematics online webapp web2.0 webapps applications web free geek maths school software study tool)
• Protocol Buffers – Google Code
  Google 开源了其内部的数据交换格式
  (tags: google opensource programming data framework library xml webdev API communication documentation development messaging network networking open protocol reference)