思科2950交换机恢复密码
1） 按下MODE键后给2950加电。
2） 在出现的菜单中选择第一项
system software:
flash_init
load_helper
boot
switch:
flash_init
3） 重命名flash:config.text文件。
switch: ren flash:config.text flash:config.old
switch:
dir flash:
Directory of flash:/
2
-rwx 2664051 <date> c2950-i6q4l2-mz.121-11.EA1.bin
3
-rwx 269 <date> env_vars
4
-rwx 1531 <date> config.old
6
-rwx 556 <date> vlan.dat
7
drwx 704 <date> html
19
-rwx 109 <date> info
20
-rwx 109 <date> info.ver
21
-rwx 5 <date> private-config.text
3778560 bytes available (3962880 bytes used)
4） 重启交换机
switch:
boot
5） 当出现问你是否进行配置时，选择NO（因为它找不到配置文件config.text文件了）
Would you like to enter the initial configuration dialog? [yes/no]:no
6） 从用户模式登录特权模式，无需密码。
Switch>
en
Switch#
7） 恢复刚才重命令的配置文件名.
Switch#
rename flash:config.old flash:config.text
Destination filename [config.text]?
直接回车
8） 用老的配置文件替换当前的配置文件。
Switch#
copy flash:config.text system:running-config
Destination filename [running-config]?
直接回车
% Login disabled on line 1, until 'password' is set
% Login disabled on line 2, until 'password' is set
% Login disabled on line 3, until 'password' is set
% Login disabled on line 4, until 'password' is set
% Login disabled on line 5, until 'password' is set
% Login disabled on line 6, until 'password' is set
% Login disabled on line 7, until 'password' is set
% Login disabled on line 8, until 'password' is set
% Login disabled on line 9, until 'password' is set
% Login disabled on line 10, until 'password' is set
% Login disabled on line 11, until 'password' is set
% Login disabled on line 12, until 'password' is set
% Login disabled on line 13, until 'password' is set
% Login disabled on line 14, until 'password' is set
% Login disabled on line 15, until 'password' is set
% Login disabled on line 16, until 'password' is set
1531 bytes copied in 2.364 secs (765 bytes/sec)
9） 修改使用密码。
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#en secret adm0509
Switch(config)#
10） 重启交换机，密码已被改成adm0509.
Switch#reload
Proceed with reload? [confirm]
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