11-12-2011
Hi,
how did you disable rlogin for root? According to IBM all you need to do to prevent root from direct login is to set rlogin to False in /etc/security/user
Regards
zxmaus
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
After Configuring a brand new netraT1, It appears, the only way you can log in as root is throught the Serial Port (console). I believe there is a file in /etc which can be edited to allow root to access login via other methods
eg: telnet, ssh, etc.
My Question:
Which file contains... (2 Replies)
Discussion started by: SmartJuniorUnix
2 Replies
2. AIX
Hello!
I'm going through security checklist for AIX 5.3 and i just can't disable remote login for root through ssh.
What i did:
- in /etc/security/user i added a line:
rlogin = false
which works fine when i try to login through telnet
- after installation of openSSH i edited... (3 Replies)
Discussion started by: veccinho
3 Replies
3. UNIX for Dummies Questions & Answers
I am able to disable direct root login through telnet. But when I add the rlogin = false into the /etc/security/user file. I am unable to log in as root from ssh. I uncommented the "PermitRootLogin yes" in the sshd_config file. Still can't log in. Can anyone help? (0 Replies)
Discussion started by: james0125
0 Replies
4. UNIX for Dummies Questions & Answers
Hi All,
I have setup a non root user on AIX 5.3, using smit. When I try logging on as that user my login screen just disappears. I am using PUTTY. I login to the same box as root no problems. I have tried re-creating several different usernames but get the same effect I have also telneted from a... (2 Replies)
Discussion started by: hansul
2 Replies
5. Linux
Hi Guys....
I am a newbie to unix. I have a requirement. I have a server. I have to configure ssh to disable direct root login and then add a user with sudo access to this server.Then change the ssh port to 22315 and the server should permit the ssh only from my local machine ip.I also have to... (1 Reply)
Discussion started by: mahesh_raghu
1 Replies
6. UNIX for Dummies Questions & Answers
I have already disabled root login over the ssh by modifying /etc/ssh/sshd_config.
But how would i disable root login on a server itself.
We have implemented LDAP in our environment and our security guide states that root login must be obtained by first logging into the host using his/her own... (2 Replies)
Discussion started by: pinga123
2 Replies
7. Solaris
Hi,
I am trying to setup direct login from server test1 (Solaris 10) to server test2 (Solaris 9) using id taops (ldap id).
Process Followed on Test 2.
created .rhosts file in home directory of user taops
geneted public key on test1 and appended to authorized keys on test2.
Now trying... (8 Replies)
Discussion started by: tuxian
8 Replies
8. Solaris
Hi all,
how can I disable direct login to a Solaris system not only for root user but also for other accounts?
Looking in google I came to the following:
For telnet (/etc/default/login):
disable root access> CONSOLE=/dev/console
disable generic user> ?
For ssh... (5 Replies)
Discussion started by: Evan
5 Replies
9. AIX
Hello,
I would like to confirm whether the below procedure is correct.
disabled direct super user access on AIX server using below procedure. Please let me know if there is any additional step.
1) confirm the access to HMC, console to reach the LPARs
2) chuser rlogin=false root
... (3 Replies)
Discussion started by: dio34
3 Replies
10. UNIX for Beginners Questions & Answers
Hello. I recently upgraded to a new Power 8 server and running AIX 7.1.
I migrated from an IBM P520 and AIX 5.5.
My application on the P520 works best if I direct print, it doesn't work well with spooling. My IBM rep set up the new Power 8 server with spooling which is causing an issue.... (4 Replies)
Discussion started by: ldavis1080
4 Replies
RLOGIN(1) BSD General Commands Manual RLOGIN(1)
NAME
rlogin -- remote login
SYNOPSIS
rlogin [-8EKLdx] [-e char] [-k realm] [-l username] host
DESCRIPTION
Rlogin starts a terminal session on a remote host host.
Rlogin first attempts to use the Kerberos authorization mechanism, described below. If the remote host does not supporting Kerberos the
standard Berkeley rhosts authorization mechanism is used. The options are as follows:
-8 The -8 option allows an eight-bit input data path at all times; otherwise parity bits are stripped except when the remote side's stop
and start characters are other than ^S/^Q .
-E The -E option stops any character from being recognized as an escape character. When used with the -8 option, this provides a com-
pletely transparent connection.
-K The -K option turns off all Kerberos authentication.
-L The -L option allows the rlogin session to be run in ``litout'' (see tty(4)) mode.
-d The -d option turns on socket debugging (see setsockopt(2)) on the TCP sockets used for communication with the remote host.
-e The -e option allows user specification of the escape character, which is ``~'' by default. This specification may be as a literal
character, or as an octal value in the form
nn.
-k The option requests rlogin to obtain tickets for the remote host in realm realm instead of the remote host's realm as determined by
krb_realmofhost(3).
-x The -x option turns on DES encryption for all data passed via the rlogin session. This may impact response time and CPU utilization,
but provides increased security.
A line of the form ``<escape char>.'' disconnects from the remote host. Similarly, the line ``<escape char>^Z'' will suspend the rlogin ses-
sion, and ``<escape char><delayed-suspend char>'' suspends the send portion of the rlogin, but allows output from the remote system. By
default, the tilde (``~'') character is the escape character, and normally control-Y (``^Y'') is the delayed-suspend character.
All echoing takes place at the remote site, so that (except for delays) the rlogin is transparent. Flow control via ^S/^Q and flushing of
input and output on interrupts are handled properly.
KERBEROS AUTHENTICATION
Each user may have a private authorization list in the file .klogin in their home directory. Each line in this file should contain a Ker-
beros principal name of the form principal.instance@realm. If the originating user is authenticated to one of the principals named in
.klogin, access is granted to the account. The principal accountname.@localrealm is granted access if there is no .klogin file. Otherwise a
login and password will be prompted for on the remote machine as in login(1). To avoid certain security problems, the .klogin file must be
owned by the remote user.
If Kerberos authentication fails, a warning message is printed and the standard Berkeley rlogin is used instead.
ENVIRONMENT
The following environment variable is utilized by rlogin:
TERM Determines the user's terminal type.
SEE ALSO
rsh(1), kerberos(3), krb_sendauth(3), krb_realmofhost(3)
HISTORY
The rlogin command appeared in 4.2BSD.
BUGS
Rlogin will be replaced by telnet(1) in the near future.
More of the environment should be propagated.
Linux NetKit (0.17) August 15, 1999 Linux NetKit (0.17)