The address 197.20.71.0 identifies a network that you want to identify with a name. Which file, if edited, will identify the network address with a name? A. /etc/hosts B. /etc/inet/networks.conf C. /etc/networks.conf D. /etc/default/networks.conf 感觉是Ａ Ａ就是名字和ＩＰ地址的一个对应，但是看英语意思，有觉得好象理解不太对头 Ｂ，Ｃ，Ｄ都没有这些文件 这么排来排去的，也只有Ａ了

Postgresql v7.2 谁能帮忙解释一下，多谢！ java.sql.SQLException: ERROR: Unable to identify an ordering operator '<' for type 'unknown' Use an explicit ordering operator or modify the query

When I handle a memory leak bug, I found this very useful article. This method is only used in solaris, not the linux, for linux has valgrind. The link is: http://developers.sun.com/solaris/articles/libumem_library.html 本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/6247/showart_1844450.html

I tried to transfer some music to my Aigo v002 Mp3 player in FreeBSD 6.2, but some problems occured like below: When I plugged it in, the system correctly recognized it as " SCSI-0 device...", device name "da0"，details as "da0:umass-sim0", rate "1.0000 MB/s", so far so good. And directly then system reports "da0: uhub0 Port 3(Addr 2) disconnected", which only appears when de...

if i use 127.0.0.1,it's no problem.but if i use localhost, the browser can display my webpages. I have modified the servername into localhost,it still can't work....why??how can i do?

how to troubleshoot a device offline error? thank you!

Dear All : 我把另一顆硬盤接到系統,然後在ok mode下boot -rs,重開後認到在/dev/rdsk/下為c0t1d0s0 ~ s7,然後我mount卻出現not a block device #mount /dev/rdsk/c0t1d0s0 /mnt 就出現 /dev/rdsk/c0t1d0s0 not a block device 我該如何作? Thanks

在sco openserver下建生设备，具体的步骤怎样呢？

我在用户的crontab里加了这样一个脚本： 1 * * * * sh /usr/local/bin/cron880_sqwen.sh >; /dev/null & 之后系统总是向我发这样的mail: Your "cron" job on sqwen sh /usr/local/bin/cron880_sqwen.sh >; /dev/null & produced the following output: stty: : No such device or address stty: : No such device or address 请问是怎么回事啊？ 难道我的/dev/null不存在吗？可明明有的啊

我用的是DS10，在安装OS的时候对硬盘分区，硬盘的设备名为rz8，为什么要叫做这个？根据什么定义的？另外系统中其他设备如tape driver等等又是怎么定义的？