08-28-2012
Again, do you login on the console OR via ssh?
If you try to login via ssh, then it's clear. root is not allowed to login via ssh by default for security reasons.
10 More Discussions You Might Find Interesting
1. Red Hat
Hi all,
Thanks for reading and any posts.
Quick question, has anyone out there got any suggestions for standards of security for Redhat enterprise 3. We are making an RAC cluster Oracle application using Oracle 9i (hopefully moving to 10g sooner rather than later).
Thanks again for any... (0 Replies)
Discussion started by: B14speedfreak
0 Replies
2. Red Hat
Hello;
I have 2 node Redhat Cluster (RHEL4 U4 and Cluster Suite) I'm using mc_data fiber channel switch for fencing
when I want to fence manually using
fence_mcdata -a x.x.x. -l xxx -p xxxx -n 5 -o disable
following messages appears
fencing node "test1"
agent "fence_mcdata" reports:... (0 Replies)
Discussion started by: sakir19
0 Replies
3. Red Hat
Hi All,
I have to upgrade python installed on my Redhat enterprise Linux 4. I downloaded the latest python package from python website but not able to install the new package as the make command itself goes on running for more than a day. Can some help me regarding this. Is ther any method to... (2 Replies)
Discussion started by: Praveen H
2 Replies
4. Red Hat
Hi,
I would like to know if should i patch my system and sshd based on the version that i have here below:
cat /etc/redhat-release
Red Hat Enterprise Linux ES release 4 (Nahant Update 5)
------------
uname -a: redhat kernel version and type (64-bit or not)
Linux server2 2.6.9-55.ELsmp... (2 Replies)
Discussion started by: lamoul
2 Replies
5. Red Hat
Hi
i installed samba-client-3.0.23c-2 on Redhat Server but cat not start
#service smb start. it gives error
unrecognized smb
I checked
samba-common-3.0.23c-2
# rpm -qa |grep smb
pam_smb-1.1.7-7.2.1
# rpm -qa |grep samba
samba3-client-3.2.15-40.el5
Could someone help please?
... (1 Reply)
Discussion started by: lamoul
1 Replies
6. Red Hat
hi all
do i need to add rc. prefix on the stop script all the time especially on redhat 5 enterprise? like below
ln -s /etc/init.d/rc.stopdb2 /etc/rc0.d/K01rc.stopdb2
and on the /etc/rc.local, i need to add this only
touch /var/lock/subsys/stopdb2
Is that going to work?
thanks... (1 Reply)
Discussion started by: itik
1 Replies
7. Red Hat
Hello
I have been asked to provide a security patch analysis of servers in my environment. For HPUX and Solaris there are tools wich can be loaded onto the servers to do this. However I do not know of one for Redhat . At this point I must mentioned that the Redhat servers are behind a firewall... (2 Replies)
Discussion started by: dmsmith32
2 Replies
8. Red Hat
Hello,
I have installed Red Hat 6.2 version & KVM installed, file system limited is only 40GB, how do i create more than 40 GB ( I need to install more than 100 GB file system ) Could you please me.
Thanks... (2 Replies)
Discussion started by: Inamadugu
2 Replies
9. Red Hat
Hello, I'm using dell inspiron 14R laptop and I installed Redhat enterprise 6.2 on this. After successfully installation i did not found any network interface on this.
when i'm trying to load/add qeth driver . The driver is not found showing this message.
Bash: lsmod | grep qeth
Bash:... (4 Replies)
Discussion started by: dearsumon
4 Replies
10. Fedora
Hi,
please can any one tell me where can i download redhat linux 6.4 for training purpose?
thanks & Regards (1 Reply)
Discussion started by: younusdba
1 Replies
LEARN ABOUT ULTRIX
rexecd
rexecd(8c) rexecd(8c)
Name
rexecd - remote execution server
Syntax
/etc/rexecd
Description
The command is the server for the routine. The server provides remote execution facilities with authentication based on usernames and
encrypted passwords.
The command is invoked by when it receives a connection on the port indicated in the ``exec'' service specification. For further informa-
tion, see When a service request is received the following protocol is initiated:
1) The server reads characters from the socket up to a null (` ') byte. The resultant string is interpreted as an ASCII number, base 10.
2) If the number received in step 1 is non-zero, it is interpreted as the port number of a secondary stream to be used for the stderr. A
second connection is then created to the specified port on the client's machine.
3) A null terminated username of at most 16 characters is retrieved on the initial socket.
4) A null terminated password of at most 16 characters is retrieved on the initial socket.
5) A null terminated command to be passed to a shell is retrieved on the initial socket. The length of the command is limited by the upper
bound on the size of the system's argument list.
6) The command then validates the user as is done at login time and, if the authentication was successful, changes to the user's home
directory, and establishes the user and group protections of the user. If any of these steps fail the connection is aborted with a
diagnostic message returned.
7) A null byte is returned on the connection associated with the stderr and the command line is passed to the normal login shell of the
user. The shell inherits the network connections established by
Diagnostics
All diagnostic messages are returned on the connection associated with the stderr, after which any network connections are closed. An
error is indicated by a leading byte with a value of 1 (0 is returned in step 7 above upon successful completion of all the steps prior to
the command execution).
username too long
The name is longer than 16 characters.
password too long
The password is longer than 16 characters.
command too long
The command line passed exceeds the size of the argument list (as configured into the system).
Login incorrect
No password file entry for the username existed.
Password incorrect
The wrong was password supplied.
No remote directory
The command to the home directory failed.
Try again
A fork by the server failed.
/bin/sh: ...
The user's login shell could not be started.
Restrictions
Indicating ``Login incorrect'' as opposed to ``Password incorrect'' is a security breach which allows people to probe a system for users
with null passwords.
See Also
inetd(8c)
rexecd(8c)