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Forum: Security

Post here for help with Linux security issues: antivirus, firewalls, encryption, vulnerabilities, etc

  1. Sticky Thread Sticky: A short guide to Linux security

    Here at we are often asked about the potential threat of a virus or malware attack. This short guide is designed to answer some of...

    Started by fingal, 02-25-2006
    • Replies: 1
    • Views: 52,422
    01-11-2010 Go to last post
  1. "su" command causes log message, what's it mean?

    Every time I execute the su command (to become root) on my home computer, a message is logged in /var/log/secure. The su command succeeds without...

    Started by KenJackson, 09-29-2006
    • Replies: 1
    • Views: 3,108
    09-30-2006 Go to last post
  2. "Virus" problem in Kubuntu

    Hello. Some 6 months ago when I was using Windows , I ended up having on my hdd the most nasty virus I have ever heard about. This virus is like an...

    Started by Oraculum, 03-31-2010
    • Replies: 7
    • Views: 2,427
    04-15-2010 Go to last post
  3. '' denied: 1466 Time(s) hacking solution

    Hi all, I've been getting these messages ('' denied: 1466 Time(s) ) through on my logwatch. I'm a bit of an amateur but have done...

    Started by alexiag, 03-27-2013
    • Replies: 1
    • Views: 601
    04-01-2013 Go to last post
  4. 'segmentation fault' in ipp2p

    Hello , I have a question; I have to make an 'essay' on ipp2p for use on the school's firewall; I followed the tutorial that can be found here....

    Started by wouter, 11-27-2008
    • Replies: 0
    • Views: 1,036
    11-27-2008 Go to last post
  5. (breached?) Delete printer in cups takes me to.... (SOLVED. sort of...) The weird thing is, on this Debian box, I use "roughhouse@*********!" I enter the cups configurator through...

    Started by Dapper Dan, 06-29-2005
    • Replies: 1
    • Views: 3,495
    06-29-2005 Go to last post
  6. (sorry)linux have program can virus for windows

    yesterday my teacher told me. he say Linux have some program for Scan virus of windows. i think it's good if it can scan virus in windows cause...

    Started by lung, 12-19-2008
    • Replies: 6
    • Views: 944
    12-19-2008 Go to last post
  7. ***Rootkit Exploit in 10.2***-WARNING

    I have just noticed this post on another Suse forum. There is probably no need to panic but...

    Started by cruetset1080, 02-16-2007
    • Replies: 0
    • Views: 985
    02-16-2007 Go to last post
  8. /bin/false

    is it right, if i want to disable some account to access into my server (example using ssh client or whatever or putty) ?

    Started by kamtono, 01-11-2005
    • Replies: 2
    • Views: 8,288
    01-11-2005 Go to last post
  9. /bin/false again !

    thanks for reply my post but now i have some questions i read on G. Mourani books to disable account is add (* - asterisk mark) on front of the...

    Started by kamtono, 01-20-2005
    • Replies: 1
    • Views: 2,538
    01-20-2005 Go to last post
  10. /etc on seperate partition

    Hi, Is it possible to mount the /etc directory on a seperate partition? Ideally, I want that partition on a USB pen drive that it in read-only...

    Started by helpmhost, 12-21-2005
    • Replies: 5
    • Views: 1,746
    12-30-2005 Go to last post
  11. /etc/hosts.deny missing ":" separator

    Hello, my Logwatch returns this: I read on the internet that there could be some nonprinting character and that command "cp /dev/null...

    Started by postcd, 12-21-2013
    • Replies: 1
    • Views: 497
    12-22-2013 Go to last post
  12. /etc/passwd permissions problems

    Distribution: Red Hat Linux 9 I was reading something on Unix-flavors security yesterday... it talked about editing /etc/passwd... and my first...

    Started by Glider Girl, 12-26-2004
    • Replies: 4
    • Views: 7,904
    01-06-2005 Go to last post
  13. /etc/services

    Hi, am i have to write down on /etc/services all the port that i like to block (i.e Yahoo messenger, MSN, IRC) what port windows messenger is...

    Started by kamtono, 04-14-2005
    • Replies: 4
    • Views: 8,158
    05-16-2006 Go to last post
  14. Unhappy /etc/syslog.conf vs /etc/syslog-ng.conf

    greetings all,:) my box is a linux suse 10.3 i did not see the file /etc/syslog.conf. all i see is...

    Started by altarofscience, 10-15-2008
    • Replies: 0
    • Views: 4,536
    10-15-2008 Go to last post
  15. 2 questions about security ( chmod and LDAP )

    Hello everyone, im securing few servers, and in all of them, i need create the user, modify her password at first time, modify a special bashrc to...

    Started by billy_boy, 11-28-2007
    • Replies: 2
    • Views: 1,553
    11-29-2007 Go to last post
  16. 2 Questions!!

    Rkhunter issued warnings about hidden directory files in etc and dev; how do I find them please? Has anyone heard of the " classpath security "...

    Started by cousinlucky, 06-25-2012
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,009
    06-26-2012 Go to last post
  17. 2.6.31 iptables ignores reply pkt at interface SNAT+VLAN

    Hi, I have a bit complex iptables+nat+mangle+vlan's setup within my box working perfectly with 2.6.30 and previous kernel versions. However, If I...

    Started by luispa, 11-07-2009
    • Replies: 2
    • Views: 2,535
    12-18-2009 Go to last post
  18. 3 MACHINES HACKED - lsof/netstat/proc suggest kernel exploit

    Guys, I think my server farm has been seriously exploited. Running a routine "netstat -tlpn" as root on one production apache server tonight I...

    Started by beniji, 09-20-2008
    • Replies: 1
    • Views: 2,145
    09-20-2008 Go to last post
  19. 3 steps to protect Webserver against DoS?

    Hi, there are 3 steps on how to protect against Denial of Service attack on a webserver: - limiting the number of requests that a server will...

    Started by postcd, 03-30-2014
    • Replies: 2
    • Views: 408
    03-30-2014 Go to last post
  20. 3 users

    I came back to my computer last night after the last football game and went into Console and typed (Uptime). When I got the results it says (11:05am ...

    Started by wavz, 10-11-2004
    2 Pages
    1 2
    • Replies: 16
    • Views: 2,407
    10-27-2004 Go to last post

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