If you can change the root password and removing the sudo privileges to switch user to root, even better. No access means no chance of errors by them again. Be careful with sudo rules though. Some commands sudh as vi, ftp and seemingly harmless more may allow you to escape to a shell prompt as a root privilege user. Work on the basis of allowing as little as possible for everything.
If you have to share access, do you have a line in your /etc/syslog.conf (or rsyslog.conf) for:-
If so, then there may be some clues in there, whatever it is defined to. The problem may come in working out what action caused the problem, when it happened and then tracing back. Perhaps you could include some tracing in your /etc/profile to record more useful information.
I hope that this helps,
Robin
Liverpool/Blackburn
UK
The directions below were provided by someone on the unslung mailing list. unslung is a linux OS for LinkSys's $100 NSLU2 NAS controller.
I'm posting the query here because
(1) I think it is really a generic linux/unix questions
(2) I did not get a response in the unslung mailing list.
I... (1 Reply)
Hi,
I'm new to solaris/ Unix and would like to know how to check in the system what
was the last login user were doing. Is there any way to check this? Thanks in advanced. (1 Reply)
Helo,
I have created one group called RBAC.(roll back access control)
Now when I created user of RBAC its entry in /etc/passwd file is given below:
roleadm:x:120:109:RBAC User:/home/pds_RBAC:/bin/false
I have keep at the end /bin/false because I dont want to give direct login to the user... (2 Replies)
Not sure if that title is decent, but here we go. I'm running this string of commands:
qstat -f $1 | sed 's/^*//' | sed -n -e ":a" -e "$ s/\n//gp;N;b a" | sed 's/\\,/,/' | awk -F"PBS_O_WORKDIR=" '{print $2}' | awk -F",PBS_O_SYSTEM" '{print $1}'In case you're curious is takes the output of a PBS... (3 Replies)
Does anybody know how to keep SCCS from changing the wrong module keywords? I'm thinking of a don't translate after this line kind of operation.
I see where you can use get with a -k but then no keywords get translated. It's either all or none.
I use simply
# %A%
# %G% %T%
in all my... (1 Reply)
Hello,
I'm implementing a very simple FTP client, and to do the login I would like to check against system users instead of using my own database, so that I can give the proper permissions to the newly created process that I spawn with fork. What's the best way for doing this in C?
I've read... (4 Replies)
i am prompting for a name to search.
read user
if
then
however, i get this error:
please enter a username on the system:
fool
menu_script2.sh: line 123: (4 Replies)
I noticed my hostname is <my-full-name>s-macbook.local. I'm not sure exactly what information leaves the local network, and whether the hostname is included, but if it is, this would mean people on the Internet can look at my hostname and see who I am. Before anyone says that's not possible,... (4 Replies)
Discussion started by: Ultrix
4 Replies
LEARN ABOUT CENTOS
passmass
PASSMASS(1) General Commands Manual PASSMASS(1)NAME
passmass - change password on multiple machines
SYNOPSIS
passmass [ host1 host2 host3 ... ]
INTRODUCTION
Passmass changes a password on multiple machines. If you have accounts on several machines that do not share password databases, Passmass
can help you keep them all in sync. This, in turn, will make it easier to change them more frequently.
When Passmass runs, it asks you for the old and new passwords. (If you are changing root passwords and have equivalencing, the old pass-
word is not used and may be omitted.)
Passmass understands the "usual" conventions. Additional arguments may be used for tuning. They affect all hosts which follow until
another argument overrides it. For example, if you are known as "libes" on host1 and host2, but "don" on host3, you would say:
passmass host1 host2 -user don host3
Arguments are:
-user
User whose password will be changed. By default, the current user is used.
-rlogin
Use rlogin to access host. (default)
-slogin
Use slogin to access host.
-ssh
Use ssh to access host.
-telnet
Use telnet to access host.
-program
Next argument is a program to run to set the password. Default is "passwd". Other common choices are "yppasswd" and "set
passwd" (e.g., VMS hosts). A program name such as "password fred" can be used to create entries for new accounts (when run as
root).
-prompt
Next argument is a prompt suffix pattern. This allows the script to know when the shell is prompting. The default is "# " for
root and "% " for non-root accounts.
-timeout
Next argument is the number of seconds to wait for responses. Default is 30 but some systems can be much slower logging in.
-su
Next argument is 1 or 0. If 1, you are additionally prompted for a root password which is used to su after logging in. root's
password is changed rather than the user's. This is useful for hosts which do not allow root to log in.
HOW TO USE
The best way to run Passmass is to put the command in a one-line shell script or alias. Whenever you get a new account on a new machine,
add the appropriate arguments to the command. Then run it whenever you want to change your passwords on all the hosts.
CAVEATS
Using the same password on multiple hosts carries risks. In particular, if the password can be stolen, then all of your accounts are at
risk. Thus, you should not use Passmass in situations where your password is visible, such as across a network which hackers are known to
eavesdrop.
On the other hand, if you have enough accounts with different passwords, you may end up writing them down somewhere - and that can be a
security problem. Funny story: my college roommate had an 11"x13" piece of paper on which he had listed accounts and passwords all across
the Internet. This was several years worth of careful work and he carried it with him everywhere he went. Well one day, he forgot to
remove it from his jeans, and we found a perfectly blank sheet of paper when we took out the wash the following day!
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
7 October 1993 PASSMASS(1)