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Why you can't mix wildcard IP port binding with other bindings

Wandering Thoughts | July 18, 2006, 1:18 a.m. | Original

A while back I wrote, about TCP portbinding:

Unfortunately, you can't bind a port to the generic wildcard addressif anyone is using the port on a specific IP address, hence the Apacherestart problem. (Why this port binding limitation is a sensibleis beyond the scope of this margin, but it is, however annoying itperiodically is.)

Today I feel like explaining why. The core problem is deciding whogets handed a new connection (or for UDP, a new packet); if

空空的 Google IG

JackysBlog | July 17, 2006, 10:34 p.m. | Original

看到這篇文章介紹如何將 Google Personalized Homepage 加入到 Firefox 的 Sidebar 上，看來蠻實用的。我自己不常用 Personalized Homepage，只有一些測試用的玩意兒，而且很久沒有碰過了。進入 https://www.google.com/ig ，按新增內容，卻只見到這些：

甚麼都沒有得加？多番嘗試之

街霸回顧 (一)：緣起

JackysBlog | July 17, 2006, 3:13 p.m. | Original

我是看《街頭霸王》大的。

當年 CAPCOM 遊戲《Street Fighter 2》(SF2)越來越熱，記憶中我第一次接觸 SF2 是在《兒童周刊》的一篇連載漫畫(名字忘了)，故事是兩個小孩打機高手合作打比賽之類，而當中的遊戲正正是SF2，加上當時的

愛情呀愛情呀，呢個blog終於有愛情喇！

tswtsw | July 17, 2006, 1:25 p.m. | Original

文明單位：愛情：校園、失敗、變態
嘉賓：袁兆昌
（節目中播了三首好歌，估下我地聽緊個陣係咩樣？）

本來打算請袁兆昌來賣青春，誰知他一開口就是操控、同性戀，黑色到不得了，袁兆昌真係，一世都估唔到。

這個時候有人

一個人的力量

silencemo | July 17, 2006, 5:44 a.m. | Original

一個人的力量可以做些什麼?
這常常是我想不通的問題
我膽小如鼠
做不了大事
今日讀報發現這麼一篇有力的文章
此君行文穩健細緻
大有見地
而且寫這樣的文章而署真名
我佩服其勇氣
有時我想
如果所有有能力寫文章的人都交得出這

Thesis: SMP is a failure for most Internet servers

Wandering Thoughts | July 17, 2006, 1:18 a.m. | Original

I used to be a big proponent of getting SMP PClone servers instead ofuniprocessor ones. Nowadays, though, I'm not so sure, and I now activelytilt towards UP machines.

The advantage of SMP over UP is more CPU capacity and to someextent larger caches (if the OS scheduling works out right). ButInternet-facing servers are rarely hurting for more CPU; often youreally want more IO and maybe more memory.

(This assumes that the server is not grotesquely overconfigured to startwith,