07-02-2015
Really Very helpful command.. Never used it before but it will be very useful.. Thanks much for your suggestion..
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
We are using HP unix how to find out how many number of CPU's in the system. (7 Replies)
Discussion started by: salaathi
7 Replies
2. Shell Programming and Scripting
Hi all,
Im new to linux... Im in need to write a shell script to check wthr JRE in linux machine... Wtz de best way to find thru BASH?? Plz help me out to solve this issue...
Thanks (3 Replies)
Discussion started by: XivaX
3 Replies
3. Ubuntu
I need list of 3rd party softwares installed in a Unix server (eg: Fedora / RedHat). I know if they are system supported format (like rpm format for fedora/redhat, pkg format for debian/ubuntu etc) we can list them by system specific commands ($ rpm -qa). But how to list the softwares installed... (3 Replies)
Discussion started by: uday123
3 Replies
4. UNIX for Advanced & Expert Users
hey ,
Anyone knows command to find when Linux OS is installed?
Date and time? (2 Replies)
Discussion started by: crackthehit007
2 Replies
5. Shell Programming and Scripting
How can i check if sqlldr has been installed on my AIX/UNIX mechine?
Is there any unix script to check this one out.... (0 Replies)
Discussion started by: msrahman
0 Replies
6. Shell Programming and Scripting
Hi All,
I have a requirment, i need to get the list of all the process which are running from last two days on my unix server and also to put this list into an another file.
i am giving you a sample example :
$ ps -ef
UID PID PPID C STIME TTY TIME CMD (1 Reply)
Discussion started by: akshu.agni
1 Replies
7. UNIX for Dummies Questions & Answers
hi, guys,
now I face a problem. I have developed an application, and when it starts, it shall check if an application has been installed on the running linux/unix. If result is positive, i do something with the application command.
just as an example: I want to check if sshd has been... (3 Replies)
Discussion started by: sk1418
3 Replies
8. UNIX for Dummies Questions & Answers
Hi Team,
I understand that this query does not involve Unix exactly, but can anyone give me pointers as to know which Servers host a particular certificate i.e xyz.intra.com . The Development team has left long back and we have no idea how to ascertain on which servers the certificate is hosted... (1 Reply)
Discussion started by: srkmish
1 Replies
9. Shell Programming and Scripting
Hello all,
I have a task to patch red hat servers and some servers have a corrupted rpm database and return the error:
Error: rpmdb open failed
I know how to fix this when it occurs. What I'm hoping to do is scan a list of servers by IP and report back which server have this error.
... (6 Replies)
Discussion started by: greavette
6 Replies
10. UNIX for Beginners Questions & Answers
Hello Forum,
I'm issuing a one line bash command to look for the version of an installed application and saving the result to a variable like so:
APP=application --version
But if the application is not installed I want to return to my variable that the Application is not installed. So I'm... (2 Replies)
Discussion started by: greavette
2 Replies
LEARN ABOUT X11R4
tcpdchk
TCPDCHK(8) System Manager's Manual TCPDCHK(8)
NAME
tcpdchk - tcp wrapper configuration checker
SYNOPSIS
tcpdchk [-a] [-d] [-i inet_conf] [-v]
DESCRIPTION
tcpdchk examines your tcp wrapper configuration and reports all potential and real problems it can find. The program examines the tcpd
access control files (by default, these are /etc/hosts.allow and /etc/hosts.deny), and compares the entries in these files against entries
in the inetd network configuration file.
tcpdchk reports problems such as non-existent pathnames; services that appear in tcpd access control rules, but are not controlled by tcpd;
services that should not be wrapped; non-existent host names or non-internet address forms; occurrences of host aliases instead of official
host names; hosts with a name/address conflict; inappropriate use of wildcard patterns; inappropriate use of NIS netgroups or references to
non-existent NIS netgroups; references to non-existent options; invalid arguments to options; and so on.
Where possible, tcpdchk provides a helpful suggestion to fix the problem.
OPTIONS
-a Report access control rules that permit access without an explicit ALLOW keyword.
-d Examine hosts.allow and hosts.deny files in the current directory instead of the default ones.
-i inet_conf
Specify this option when tcpdchk is unable to find your inetd.conf network configuration file, or when you suspect that the program
uses the wrong one.
-v Display the contents of each access control rule. Daemon lists, client lists, shell commands and options are shown in a pretty-
printed format; this makes it easier for you to spot any discrepancies between what you want and what the program understands.
FILES
The default locations of the tcpd access control tables are:
/etc/hosts.allow
/etc/hosts.deny
SEE ALSO
tcpdmatch(8), explain what tcpd would do in specific cases.
hosts_access(5), format of the tcpd access control tables.
hosts_options(5), format of the language extensions.
inetd.conf(5), format of the inetd control file.
AUTHORS
Wietse Venema (wietse@wzv.win.tue.nl),
Department of Mathematics and Computing Science,
Eindhoven University of Technology
Den Dolech 2, P.O. Box 513,
5600 MB Eindhoven, The Netherlands
TCPDCHK(8)