05-29-2002
Su Password Oddity
Hello Forum,
I am having an odd occurence. When i do a su in a terminal or console session, I am able get authenticated as superuser without using the full or correct root password. Anyone have any idea?
-AJ
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
This is my first post!! I really hope this question hasn't been asked a thousand times before(I'll bet it has).
Anyway, here it is. I am new to the UNIX world by the way so forgive my ignorance. OK, whenever I write code on my windows machine and then try to port it over to UNIX I always get... (3 Replies)
Discussion started by: Jubba
3 Replies
2. UNIX for Dummies Questions & Answers
I am using smartFTP client on my windows machine to connect to a linux box of mine (different location) to download some large files 100+meg. The linux box is running vsftp.
After several minutes of downloading, the connection suddenly dies, and I cannot reconnect to the box via FTP using ANY... (7 Replies)
Discussion started by: Spetnik
7 Replies
3. AIX
Hi,
I have a strange problem. we're trying to connect an IBM pseries, to a Brocade switch, for SAN acess, using a badged emulex card, (IBM FC6239) WE can configure the device to see the fabric. The only problem we have is that the Brocade sees the HBA as storage, and not as a HBA.
We've zoned... (1 Reply)
Discussion started by: praxis22
1 Replies
4. UNIX for Dummies Questions & Answers
I discovered that where 'tr -s' works as expected on grepped input, it appears to completely fail on dig results.
I am not sure if this is because of some sort of non posix compliancy, or what.
Here is what I did:
The command below works as expected, squeezing all repeated spaces to a single... (3 Replies)
Discussion started by: bdmeyersc
3 Replies
5. BSD
Our webserver is running FreeBSD, for the last few days we have been having an issue with our cronjobs/mysql server.
Specifically we have jobs that execute php scripts to do various things to the website. When running these php scripts manually, via external browser, or lynx on the server, they... (8 Replies)
Discussion started by: mrfr0g
8 Replies
6. Programming
I've been going through a java tutorial, and ran across some strangeness in this small example...
class SqrRoot {
public static void main(String args) {
double num,sroot,rerr,resquare;
for(num = 1.0; num < 100.0; num++) {
sroot = Math.sqrt(num);
... (1 Reply)
Discussion started by: Trones
1 Replies
7. Solaris
All,
I'm baffled by some sort behavior on SunOS 5.10 and looking for guidance.
Running the command:
sort -t'|' -k5,5 -k7,7 -k1,1 -k2,2 -k3,3 -k6,6 -k8,8 test
Against the file "test":
thirdA||||first||second|Data
thirdB||||first||second|
thirdC||||first||second|Data... (11 Replies)
Discussion started by: effigy
11 Replies
8. UNIX for Dummies Questions & Answers
I have to apologize for my ignorance so this question is probably stupid.
How does awk process a file? Does it read from top of input file to end of file going line by line?
Yoda helped me create an awk script that helps me parse the named.conf file and output it into a .csv file but when... (8 Replies)
Discussion started by: djzah
8 Replies
9. Shell Programming and Scripting
Hi all, I'm trying to use bash to create a basic parser for some text, because basic grep/sed/awk have all my needs covered.
So, I'm creating the chain of grep/sed I need and trying the execute that on the data I gather.
The problem is, it's not working as it does when hardcoded.
e.g.
... (3 Replies)
Discussion started by: beomagi
3 Replies
VLOCK(1) General Commands Manual VLOCK(1)
NAME
vlock - Virtual Console lock program
SYNOPSIS
vlock
vlock [ -a,--all ] [ -c,--current ] [ -h,--help ] [ -v,--version ]
DESCRIPTION
vlock is a program to lock one or more sessions on the Linux console. This is especially useful for Linux machines which have multiple
users with access to the console. One user may lock his or her session(s) while still allowing other users to use the system on other vir-
tual consoles. If desired, the entire console may be locked and virtual console switching disabled.
By default, only the current VC (virtual console) is locked. With the -a,-all option all VCs are locked. The locked VCs cannot be
unlocked without the invoker's password. And, for the paranoid, vlock makes it a trying experience for those attempting to guess the pass-
word, so unauthorized access to session(s) is highly unlikely.
Please note that it is entirely possible to completely lock yourself out of the console with the -a,--all option if you cannot remember
your password! Unless you are able to kill vlock by logging in remotely via a serial terminal or network, a hard reset is the only method
of ``unlocking'' the display.
vlock works for console sessions primarily. However, there is support for trying to lock non-console sessions as well, but that support
has not been well tested.
OPTIONS
-a,--all
Lock all console sessions and disable VC switching.
-c,--current
Lock the current session (this is the default).
-h,--help
Print a brief help message.
-v,--version
Print the version number of vlock.
AUTHOR
Michael K. Johnson <johnsonm@redhat.com>
Linux User's Manual 16 May 1996 VLOCK(1)