http://kernel.org/doc/

This is just a work in progress at the moment. But its table of content looks very interesting. For more information, check out Where Linux Documentation Hides published in OLS 08.

via LWN.

A user can do ln /usr/sbin/sendmail ~/sendmail then wait for a security bug to be reported in sendmail. Even though the administrator upgrades /usr/sbin/sendmail the buggy setuid sendmail is still available in the user's home directory.

This is one reason to have separate root and /usr partitions, because hardlinking across filesystems isn't possible.

Tips from PC Magazine Aug 2008.

Before you book, at www.flightstats.com you can get the odds of the flight being on time.

On the day of your departure, visit www.fly.faa.gov to learn if there are any delays specific to your destination.

You can sign up for OrbitzTLC Alerts or check updates.orbitz.com for real-time updates.

If you're already at the airport and have to rebook, don't wait at the back of the line at the service counter. Call your airline's telephone numbers instead.

Feedburner has an official plugin that allows you to redirect Wordpress feeds to Feedburner. There's also a 3rd-party module that allows you to do the same thing with Drupal. Unfortunately, you always get the same error "The specified local feed URI does not exist" when you try to redirect your feeds. The workaround, for now, is simply to comment out the complaining line.

我们系的服务器不知怎么被黑了，与我无关的几个网页被插入了我的blog的内容，管理员于是怀疑有攻击者利用我的blog为跳板进行了XSS或者SQL injection攻击，只好临时关闭我的blog。说来奇怪，就算wordpress存在漏洞，我的帐户被完全控制，也不应该写入其它用户的网页啊？

本来选择自己host，就是觉得自由、方便，没想到还不如使用那些大站的服务稳定。干脆换到drupal，换换口味。