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Hi All,
I am new to shell scripting. I have a requirement as part of my job to find out null/empty values in column 2 and column 3 from a CSV file and exit the further execution of script by displaying a simple error message.
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Hi,
I am doing PXE boot for RHEL6.4 on EFI and want to display custom messsage before loading vmlinuz and initrd.img, which is not working.
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4. Cybersecurity
Sigh...
I use denyhosts for security. Been great for months, but today my butterfingers have managed to lock myself out of the server.
The denyhosts FAQ lists ways to edit the files to erase your IP, but...I'm locked out, so how can I edit the files? (5 Replies)
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Hi people,
i tried to search in the forum... but didnt found the answer...
Sometimes i need to send a console message to all users in all tty, like reboot or shutdown does...
But i cant find how to do that.
Someone know?
Thanks a lot (2 Replies)
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how can i list the users( and only those users) who logged in more than once? thanks in advance... (1 Reply)
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8. Shell Programming and Scripting
Hi guys,
I'm writing a script to display all the current logged on users and the processes they're running, output to a file. The output will look similar to this:
User1 (Real name not login name)
PID TTY TIME CMD
3179 pts/3 00:00:00 vim
User2
PID TTY TIME ... (2 Replies)
Discussion started by: olimiles
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DENYHOSTS(8) User Commands DENYHOSTS(8)
NAME
DenyHosts - version: 2.6
DESCRIPTION
DenyHosts is a python program that automatically blocks ssh attacks by adding entries to /etc/hosts.deny. DenyHosts will also inform Linux
administrators about offending hosts, attacked users and suspicious logins.
Usage: /usr/sbin/denyhosts [-f logfile | --file=logfile] [ -c configfile | --config=configfile] [-i | --ignore] [-n | --noemail] [--purge]
[--migrate] [--daemon] [--sync] [--version]
--file:
The name of log file to parse
--ignore: Ignore last processed offset (start processing from beginning)
--noemail: Do not send an email report
--unlock: if lockfile exists, remove it and run as normal
--migrate: migrate your HOSTS_DENY file so that it is suitable for --purge
--purge: expire entries older than your PURGE_DENY setting
--daemon: run DenyHosts in daemon mode
--foreground: run DenyHosts in foreground mode
--sync: run DenyHosts synchronization mode
--version: Prints the version of DenyHosts and exits
Note: multiple --file args can be processed. If multiple files are provided, --ignore is implied
Note: in a debian system, the default running mode is daemon mode and the configuration file is etc/denyhosts.conf
When run in --daemon mode the following flags are ignored:
--file, --purge, --migrate, --sync, --verbose
SEE ALSO
Please refer to http://denyhosts.sourceforge.net/faq.html for full documentation This file can be also found in /usr/share/doc/deny-
hosts/FAQ.html
AUTHOR
DenyHosts was written by Phil Schwartz <phil_schwartz@users.sourceforge.net>
This manual page was written by Marco Bertorello <marco@bertorello.ns0.it> for the Debian project (but may be used by others).
DenyHosts version: 2.6 July 2006 DENYHOSTS(8)