Solved

fedora

Posted on 2011-03-12
2
293 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 77

Accepted Solution

by:
arnold earned 500 total points
ID: 35117367
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
ID: 35117455
you were right! I freaked out over nothing.
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Ubuntu not booting - How get past GRUB? 3 43
Changing Domain Administrator password on a Windows network 4 62
awk variable in printf 1 24
PCI compliance 16 32
Examines three attack vectors, specifically, the different types of malware used in malicious attacks, web application attacks, and finally, network based attacks.  Concludes by examining the means of securing and protecting critical systems and inf…
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

770 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