Visit Our UNIX and Linux User Community


host lock up


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers host lock up
# 1  
Old 06-24-2002
Data host lock up .- extended

hey fellows, hope you can help me, in advance thanks.
I work on a sco unix 3.2 system and I've had a host lock up error message, I wan to know if there is a releasse note for an upgrade where I can see this bug is reported and fixed.
Can somebody help me?

THANKS!!!

Thank you very much KillerServ, the thing that the whole host is locked up just like frozen, no connection by any othet tty can go through; somebody told me that the lock up is common bug at sco unix V3.2 have you any information on this matter?

THANKS AGAIN!!! Smilie

Last edited by alex_slb; 06-24-2002 at 09:37 PM..
# 2  
Old 06-24-2002
If a tty (terminal) is locked, and the file /etc/default/login(???)
declares that root can bypass the terminal lock, you'll get something
like that. So,one way you can solve it, go look for the lock files:

Code:
:
#Reports login and tty C2 locks.
cd /tcb/files/auth
users=`find . -type f -print`			# get list of users.
for i in $users					# for each user.
do
    if (grep ':u_lock:' $i > /dev/null )	# any acct locks?
    then					# tell someone
        echo "Acct: `basename $i` is locked" 
    fi

    if (grep ':u_type=retired:' $i > /dev/null )  # account retired?
    then					  # tell someone
        echo "Acct: `basename $i` is retired" 
    fi
done

:
# test for tty locks?
if (grep ':t_lock:' /etc/auth/system/ttys > /dev/null)
then
    # get the ttys with the locks
    echo "Terminals:`grep ':t_lock:' /etc/auth/system/ttys \
    | cut -d: -f1`\nare locked" 
fi

This should identify which tty's have lock files. Use scoadmin to remove
the locks or just manually hack the remain of the stupid C2 security
abomination into submission.
 

Previous Thread | Next Thread
Test Your Knowledge in Computers #240
Difficulty: Easy
In 1973, a transatlantic satellite link connected the Norwegian Seismic Array (NORSAR) to the ARPANET, making Norway the first country outside the US to be connected to the network.
True or False?

10 More Discussions You Might Find Interesting

1. Solaris

Need to recover/move diskgroup from failed host to another host

Hi All I am having VxVm on two Solaris hosts. host1 is using disk group dgHR. right now this server went down due to hardware fault. Not I need to import this dgHR into host2 server. Please let me know the procedure for the same. (1 Reply)
Discussion started by: amity
1 Replies

2. UNIX for Advanced & Expert Users

Testing privileges -lock lockfile /var/lock/subsys/..- Permission denied

Hi all, I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...). I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message. Is there any way to simply get a return code... (3 Replies)
Discussion started by: Dedalus
3 Replies

3. UNIX for Dummies Questions & Answers

Transfer large number of files host to host

Hello.... I have two servers, one has an empty / and the other has a subdirectory with a large number (4 gig) with many, many files. I need a way to transfer the files en masse from the server with the large number of files to the one that is essentially blank. I don't have space on the used... (16 Replies)
Discussion started by: blaine.miller
16 Replies

4. Red Hat

Security Question: Lock after invalid login, Session Lock and Required Minimum Password Length

Hello all, If anyone has time, I have a few questions: How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too. 1. How to lock the account after a few (like 3) invalid password attempts? 2. How do you lock a screen after 30... (1 Reply)
Discussion started by: nstarz
1 Replies

5. UNIX for Advanced & Expert Users

Help! How to find the local host after few ssh hops to remote host???

I do a ssh to remote host(A1) from local host(L1). I then ssh to another remote(A2) from A1. When I do a who -m from A2, I see the "connected from" as "A1". => who -m userid pts/2 2010-03-27 08:47 (A1) I want to identify who is the local host who initiated the connection to... (3 Replies)
Discussion started by: gomes1333
3 Replies

6. Shell Programming and Scripting

running commands to remote host from centralized host

Gurus/Experts We have a centralized UNIX/Solaris server from where we can actually ssh to all other UNIX/Solaris servers...I need to write a script that reside on this centerlized server and do FileSystem monitoring (basically run df -h or -k) of other remote servers and then send an email to me... (6 Replies)
Discussion started by: anjum.suri
6 Replies

7. Solaris

How to delete the files from local host to remote host

Hi all, i am copying .gz files from production server to development server using "scp" command.my requirement is after copying .gz files i want to delete old .gz files(two days back) in development server from production server. like this way i need to delelte .log ,.z and .dmp files... (3 Replies)
Discussion started by: krishna176
3 Replies

8. UNIX for Advanced & Expert Users

host alias not working: host not found

Hello, I am working on HP-UX , and in the /etc/hosts file we have setup an alias: aa.bb.cc.dd devmach2.unix.org devmach2 devma2v The alias devma2v does not work. Error when pinging devma2v ping: unknown host devma2v For devmach2 the ping works fine , returning the correct IP... (4 Replies)
Discussion started by: FunnyCats
4 Replies

9. UNIX for Dummies Questions & Answers

how to lock keyboard without using lock command

how can I lock my keyboard while I'm away from the computer without using lock command. What other commands gives me the option to lock keyboard device? thanks (7 Replies)
Discussion started by: dianayun
7 Replies

10. IP Networking

QNX host cannot ping SCO host, vice versa

The problem I am facing now is that the QNX host could not ping the SCO host and vice versa. They are in the same domain, ie, 172.20.3.xx. As I am very new to Unix, I guess I must have missed out some important steps. Pls help... Thanx alot (2 Replies)
Discussion started by: gavon
2 Replies

Featured Tech Videos