Solved

fedora

Posted on 2011-03-12
2
291 Views
Last Modified: 2012-05-11
HELP!! - I'm not good at this - I have this entry in /var/spool/mail/root

users logging in through sshd:
   root:
      172.16.26.113 (itw-ws-0017.mydomain.com ) : 1 time
** unmatched entries **
warning /etc/hosts.allow line 14: missing ":" separator : 1 time (s)
address 172.16.26.113 maps to itw-ws-mydomain.com, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT! : 1 time (s)

how can i see if this is a real possible break in?  Also - is there a way to see who is logged in to 172.16.26.113 using the ip address?
0
Comment
Question by:JeffBeall
2 Comments
 
LVL 76

Accepted Solution

by:
arnold earned 500 total points
Comment Utility
hosts.allow has the format:
service:host or list of hosts.
The error seems to suggest that you have
entry entry2
versus
entry: entry2
0
 
LVL 1

Author Closing Comment

by:JeffBeall
Comment Utility
you were right! I freaked out over nothing.
0

Featured Post

Free Trending Threat Insights Every Day

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

If you're not part of the solution, you're part of the problem.   Tips on how to secure IoT devices, even the dumbest ones, so they can't be used as part of a DDoS botnet.  Use PRTG Network Monitor as one of the building blocks, to detect unusual…
By this time the large percentage of day-to-day transactions have shifted to mobile banking; here are some overriding areas QAs must investigate while testing mobile banking apps.  
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

771 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

10 Experts available now in Live!

Get 1:1 Help Now