Xen versus VMware for me

I've recently spent some time thinking about virtualization technology,in particular how I feel about Xen versus VMware. In theory the choiceshould be a slamdunk for me, because VMware requires evil binary kernelmodules and I have usually avoided that sort of thing even when it wassomewhat painful (eg, I don't use ATI's binary X drivers). In practice,though, I am only distantly lukewarm on Xen and much more interested inVMware.

The simple summary why this is is that Xen is


An interesting Bourne shell limitation

Presented in illustrated form, on at least Solaris 8, FreeBSD, andOpenBSD:

$ exec 9>/dev/null$ exec 10>/dev/nullexec: 10: not found

(And the shell exits.)

The genuine Bourne shell only allows redirection to (or from)single-digit file descriptors; if you give multiple digits, itinstead gets parsed as ' exec 10 >/dev/null '.

(The limitation has been faithfully copied by at least some Bourne shell


卓文君賣酒

第四十八枝 中平 卓文君賣酒

繡閣聽琴自起思 改妝寅夜最歡時
可憐沽酒臨邛市 才子佳人兩下廚

註解:

昔卓氏有女名文君,新寡,聽司馬相如彈琴,逐起心,乘夜奔往相處,成為夫妻但家貧,兩夫婦於臨邛市開設酒店,一箇是才子,

請聯署:就政府檢控參與拯救「天星」行動人士的聲明

被檢控人士,即係包括鄙人呢。 聯署請至此

就今天何來女士被政府檢控,我們表示憤慨!!!

月前,一群關心香港歷史文化保育人士為保護天星碼頭被拆卸,進行抗爭;參與行動的人士有過 百人,警方拘捕了包括何來女士的其

連結就是力量

身體又好轉了一點,雖然都在食藥,雖然那些藥吃了之後人很迷糊,也很疲累,但一切似乎仍得繼續,我們也要繼續談寫blog的事。

寂然世界成立之初,我考慮到blog最過癮的地方其實是連結,透過連結,一篇文章可以表達出更多資

A gotcha with inetd/xinetd and popular UDP services

We have historically had a small problem with our inetd s: every sooften when we attempted to restart it with a SIGHUP to make it pick up aconfiguration change, it would fail to bring up an important UDP-basedservice we need, reporting a failure to bind to the UDP port.

(We saw the same problem with xinetd ; I'm using ' inetd ' as as ageneric term.)

What was probably happening is that when this would happen, inetd hadjust spawned the program to handle


曲線

何來被落案起訴「刑事毀壞」和「藏有攻擊性武器可作非法用途」。「刑事毀壞」是指扯下遮蔽地盤的綠色帆布,「藏有攻擊性武器可作非法用途」,看來是指一把界刀。誰都有可能常常把界刀帶在身上——這個荒誕的罪名正正

滾滾長江東水逝水

三國演義

零七年第一篇文字 Blog,就是想當年了,實是有夠老氣橫秋。今次講一首歌。

話說當年亞視取得了國內央視的大型製作電視劇集版本《三國演義》的播映權,還請來馮兩努來每集解說,細數三國的種種。一時間還帶來了一陣「古裝


你眼中的我

________________________________

《寂寞人》

淡妝的杏臉,呷著一口又一口散滿鹽花的margarita,她的容顏帶點悲憫,畢竟她是個寂寞人。

這張臉,雖不至於令人暗暗驚呼,亦至少會讓你稍作停留

Solving an automounter timeout problem with brute force

Our central mail machine runs various cron jobs as part of its work.Starting recently, every now and then a cron job (or a command run outof an alias) would randomly die with an error like:

sh: /cs/foo/adm/script: cannot execute

(Where /cs/foo is NFS mounted through the automounter, and the cronentry just runs that script.)

I am pretty sure that this is a gift from the Solaris 8 automounter.

Our central mail machine is pretty old