Disable root SSH login : How to ??

Disable Root SSH Login on HP UX

# cd /opt/ssh/etc

# vi sshd_config

Change the line:

PermitRootLogin yes

change into like below

PermitRootLogin no

save and exit

Then stop and restart SSH.

# /sbin/init.d/secsh stop

# /sbin/init.d/secsh start

You will then NOT be allowed to ssh as root.

==============================================


Disable Root SSH Login on Linux


#vi /etc/ssh/sshd_config

Find this section in the file, containing the line with “PermitRootLogin” in it.

#LoginGraceTime 2m
#PermitRootLogin no
#StrictModes yes
#MaxAuthTries 6

Make the line look like this to disable logging in through ssh as root.

PermitRootLogin no

Then restart the sshd service:

# /etc/init.d/sshd restart

If you forget the root password in hp Unix ?

Recover root password in HP Unix

While boot the server Interact the normal boot and,
>boot
Interact with IPL ? Y
ISL>hpux -iS
passwd root

>>enter the new passwd

Reset root password in HP UX

1.Boot the server into single user mode

Interrrupt while booting the server

HPUX> boot -is

2.mount /usr

3. If it is trusted system

#/usr/lbin/tsconvert -r


4.Then reset the root password

#passwd root

or

# vi /etc/passwd
null the passwd field for root user.

5. If root user is locked then unlock using below command

#/usr/lbin/modprpw -k root

6. Once server is up in runlevel 3 again u need to convert as trusted systems

#/usr/lbin/tsconvert

Root password reset in Linux

1. Select the kernel
2. Press the "e" key to edit the entry
3. Select second line (the line starting with the word kernel)
4. Press the "e" key to edit kernel entry so that you can append single user mode
5. Append the letter "S" (or word Single) to the end of the (kernel) line
6. Press ENTER key
7. Now press the b key to boot the Linux kernel into single user mode
8. At prompt type passwd command to reset password:

You need to mount at least / and other partitions:
# mount -t proc proc /proc
# mount -o remount,rw /

Change the root password,

# passwd

thenreboot system:
# sync
# reboot

How to disable password age in HP UX ?

HPUX password aging disable:

passwd -x -1 user_id

for i in user1 user2 user3
do
passwd -x -1 $i
done

lock / unlock account user id on HP-UX trusted Systems: How to ?

/usr/lbin/getprpw useraccount

unlock / enable / reactivate:
/usr/lbin/modprpw -k useraccount

lock / expire password:
/usr/lbin/modprpw -e useraccount

Note : Do not use a capital E, as it will expire the password on all user accounts.