杰普课堂笔记（一）

AAA 基本知识 -========================== who 命令是显示当前用户 boss@boss:~$ cat /etc/passwd root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/bin/sh man:x:6:12:man:/var/cache/man:/bin/sh lp:x:7:7:lp:/var/spool/lpd:/bin/sh mail:x:8:8:mail:/var/mail:/bin/sh news:x:9:9:news:/var/spool/news:/bin/sh uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh proxy:x:13:13:proxy:/bin:/bin/sh www-data:x:33:33:www-data:/var/www:/bin/sh backup:x:34:34:backup:/var/backups:/bin/sh list:x:38:38:Mailing List Manager:/var/list:/bin/sh irc:x:39:39:ircd:/var/run/ircd:/bin/sh gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh nobody:x:65534:65534:nobody:/nonexistent:/bin/sh mysql:x:60008:60008::/home/mysql:/bin/sh alias:x:60000:60000::/var/qmail/alias:/bin/sh qmaild:x:60001:60000::/var/qmail:/bin/sh qmaill:x:60002:60000::/var/qmail:/bin/sh qmailp:x:60003:60000::/var/qmail:/bin/sh qmailq:x:60004:60001::/var/qmail:/bin/sh qmailr:x:60005:60001::/var/qmail:/bin/sh qmails:x:60006:60001::/var/qmail:/bin/sh cvs:x:6009:6009::/home/cvs:/bin/sh vpopmail:x:60007:60002::/home/vpopmail:/bin/sh sshd:x:100:65534::/var/run/sshd:/usr/sbin/nologin telnetd:x:101:103::/nonexistent:/bin/false boss:x:1000:104::/home/boss:/bin/bash chengx:x:1001:104::/home/chengx:/bin/bash doc:x:1002:1::/usr/local/boss/apache/htdocs/doc:/bin/sh duanxm:x:1003:104::/home/duanxm:/bin/bash liangxn:x:1004:104::/home/liangxn:/bin/bash zhangzz:x:1005:104::/home/zhangzz:/bin/bash yanqm:x:1006:104::/home/yanqm:/bin/bash zhanaa:x:1007:104::/home/zhanaa:/bin/bash zhangbo:x:1008:104::/home/zhangbo:/bin/bash lizq:x:1009:104::/home/lizq:/bin/bash guojia:x:1010:104::/home/guojia:/bin/bash zhangbq:x:1011:104::/home/zhangbq:/bin/bash yujj:x:1012:104::/home/yujj:/bin/bash fanjh:x:1013:104::/home/fanjh:/bin/bash fubl:x:1014:104::/home/fubl:/bin/bash wanyuan:x:1015:104::/home/wanyuan:/bin/bash guoqi:x:1016:104::/home/guoqi:/bin/bash zhaofeng:x:1017:104::/home/zhaofeng:/bin/bash wenyn:x:1018:104::/home/wenyn:/bin/bash wukh:x:1019:104::/home/wukh:/bin/bash huanggh:x:1020:104::/home/huanggh:/bin/bash yanglh:x:1021:104::/home/yanglh:/bin/bash xiaoliang:x:1022:104::/home/xiaoliang:/bin/bash jirong:x:1023:104::/home/jirong:/bin/bash chenlz:x:1024:104::/home/chenlz:/bin/bash hush:x:1025:104::/home/hush:/bin/bash luzb:x:1026:104::/home/luzb:/bin/bash liujun:x:1027:104::/home/liujun:/bin/bash boxue:x:1028:104::/home/boxue:/bin/bash liucz:x:1029:104::/home/liucz:/bin/bash boss@boss:~$ boss:/home/boss# id //查看当前用户id uid=0(root) gid=0(root) groups=0(root) boss:/home/boss# echo $HOME //查看用户HOME目录 /root boss:/home/boss# pwd //查看当前目录 /home/boss boss:/home/boss# 重新登陆 telnet 210.43.202.96 login : zhangsan (张三） zhangsf (张三丰） zhangsf (张山丰） passwd : boss （不显示） boss@boss:~$ cat /etc/passwd |grep chengx chengx:x:1001:104::/home/chengx:/bin/bash boss@boss:~$ AAA 服务器所有的用户名都存放在 /etc/passwd里，密码在/etc/shadow里 boss@boss:~$ cd /usr/local/boss boss@boss:/usr/local/boss$ pwd /usr/local/boss boss@boss:/usr/local/boss$ cd /usr/bin boss@boss:/usr/bin$ pwd /usr/bin boss@boss:/usr/bin$ cd boss@boss:~$ pwd /home/boss boss@boss:~$ boss@boss:~$ cd ./ boss@boss:~$ pwd /home/boss boss@boss:~$ cd .. boss@boss:/home$ pwd /home boss@boss:/home$ cd ../../../././../ boss@boss:/$ pwd / boss@boss:/$ boss@boss:~$ ls -R / chengx@boss:~$ touch apple chengx@boss:~$ ADSL 拨号数据清单在 /var/AAA目录下请大家查看radwtmp文件的详细属性 1：cd /var/AAA ls -l /radwtmp 2: ls -l /var/AAA/radwtmp 3: ls -l /var/AAA 查看整个目录下所有文件的详细信息