And then to complete the task:
Go to target host;
ssh host
Turn everything off:
for i in `chkconfig --list | fgrep :on | awk '{print $1}'` ; do chkconfig --level 12345 $i off; done
Create duplicate config:
while read line; do chkconfig --level $line on; done < foo
change 24073 to your pid Show Sample Output
Sometimes jittery data hides trends, performing a rolling average can give a clearer view.
What do you do when nmap is not available and you want to see the hosts responding to an icmp echo request ? This one-liner will print all hosts responding with their ipv4 address.
The command could show you all conecctions if you skip "grep ESTABLISHED" Show Sample Output
The example command deletes all aliases for network interface 'em0' assuming that the aliases have netmask of 255.255.255.255 and the master IP has some other netmask (such as 255.255.255.0). See here -> http://my.galagzee.com/2009/07/22/deleting-all-network-interface-aliases/ for more on the rationale of this command.
Ping sweep without NMAP
Only one command and not dependant on full read access to the devices. Show Sample Output
worked on ubuntu 9.04 and cygwin with MS netstat Show Sample Output
Sample command to obtain a list of geographic localization for established connections, extracted from netstat. Need geoiplookup command ( part of geoip package under CentOS) Show Sample Output
no need grep. its redundant when awk is present.
Quick and kludgy rss parser for the recent tracks rss feed from last.fm. Extracts artist and track link. Show Sample Output
Searches all log files (including archived bzip2 files) for invalid user and PAM authentication errors, both of which are indicative of brute force attempts at logging into computer. A list of all unique IP addresses and domain names is appended to hosts.deny. The command (and grep error messages) will work on Mac OS X 10.6, small adjustments may be needed for other OSs.
You set the file/dirname transfer variable, in the end point you set the path destination, this command uses pipe view to show progress, compress the file outut and takes account to change the ssh cipher. Support dirnames with spaces. Merged ideas and comments by http://www.commandlinefu.com/commands/view/4379/copy-working-directory-and-compress-it-on-the-fly-while-showing-progress and http://www.commandlinefu.com/commands/view/3177/move-a-lot-of-files-over-ssh Show Sample Output
This command basically adds up all of the individual instances processes and gives you a grand total for used memory in that instance alone.
Prints the top 10 memory consuming processes (with children and instances aggregated) sorted by total RSS and calculates the percentage of total RAM each uses. Please note that since RSS can include shared libraries it is possible for the percentages to add up to more that the total amount of RAM, but this still gives you a pretty good idea. Also note that this does not work with the mawk version of awk, but it works fine with GNU Awk which is on most Linux systems. It also does not work on OS X. Show Sample Output
show Mysql uptime Show Sample Output
Here we instead show a more real figure for how much free RAM you have when taking into consideration buffers that can be freed if needed. Unix machines leave data in memory but marked it free to overwrite, so using the first line from the "free" command will mostly give you back a reading showing you are almost out of memory, but in fact you are not, as the system can free up memory as soon as it is needed. I just noticed the free command is not on my OpenBSD box. Show Sample Output
For example, you need to make a copy of all the libraries that a certain application uses, with this command you can list and copy them. Show Sample Output
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