原因:/etc/securetty文件限制了在各种终端上可以登录的数目.
在下面例子中,psudo terminals used by telnet允许pts/0到pts/12登录,总共13个,如果增加一行pts/13,就允许14个同时登录.
# /etc/securetty: list of terminals on which root is allowed to login.
# See securetty(5) and login(1).
# Standard consoles
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11
tty12
# Same as above, but these only occur with devfs devices
vc/1
vc/2
vc/3
vc/4
vc/5
vc/6
vc/7
vc/8
vc/9
vc/10
vc/11
vc/12
#if virtual consoles have not been set up the only console is console
console
#For deployed systems the following entires should be removed.
# psudo terminals used by telnet
pts/0
pts/1
pts/2
pts/3
pts/4
pts/5
pts/6
pts/7
pts/8
pts/9
pts/10
pts/11
pts/12
|