Solved

Need command to search syslogs

Posted on 2013-01-24
5
286 Views
Last Modified: 2013-01-25
Hi Experts
I am trying to track down an IP address on a unix DNS server using /var/log/syslog. However overwhelmed with data. I know very little of unix but I remember the Grep command as the "search" command. What would the command line be to pull the desired IP from this log?

Thanks in advance
D. arno
0
Comment
Question by:dsingh006
  • 2
  • 2
5 Comments
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 38816365
grep "123.123.123.123" /var/log/syslog
0
 

Author Comment

by:dsingh006
ID: 38816451
Yes I had tried that but this is the results
sudo less grep "xxx.xxx.xxx"/var/log/syslog
[sudo] password for mmmmm:
grep: No such file or directory
xxx.xxx.xxx/var/log/syslog: No such file or directory

Then it continues on to the whole log file
0
 
LVL 9

Expert Comment

by:gt2847c
ID: 38816466
Try it this way:

sudo sh -c "grep xxx.xxx.xxx /var/log/syslog | less "
0
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 38816486
sudo should not be necessary. Syslog files are generally world-readable.

Leave a space between "123.123.123.123" and the filename.

And for the "less" thing - gt2847c's suggestion is correct.
0
 
LVL 9

Accepted Solution

by:
gt2847c earned 500 total points
ID: 38816502
If the system has reasonable security applied, the syslog files should NOT be world-readable...
0

Featured Post

Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
We cannot find the source of the spam emails on our Debian 7 server 10 122
Error installing extension Linux 4 59
Configuring windows 7 host in Nagios 4 5 42
Backup & Restore 3 46
SSH (Secure Shell) - Tips and Tricks As you all know SSH(Secure Shell) is a network protocol, which we use to access/transfer files securely between two networked devices. SSH was actually designed as a replacement for insecure protocols that sen…
Linux users are sometimes dumbfounded by the severe lack of documentation on a topic. Sometimes, the documentation is copious, but other times, you end up with some obscure "it varies depending on your distribution" over and over when searching for …
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now