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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: 71,267
    01-11-2010 Go to last post
  1. fake yahoo login ?

    I notice that when i log into yahoo acount from ubuntu, the login page is there for about 3 seconds, then the login and password boxes "jump" to...

    Started by bigvoo, 10-11-2008
    • Replies: 1
    • Views: 2,885
    10-11-2008 Go to last post
  2. Ask for help about LSM

    I'm a new learner of LSM. Anyone can tell me where can I find the detail information of LSM? The information I can find are all about the structure...

    Started by weiguixm, 10-09-2008
    • Replies: 0
    • Views: 927
    10-09-2008 Go to last post
  3. Rebuilding after rootkit invasion - need advice

    As a few members here know, I recently got blind-sided by what I'm almost certain was a rootkit. I've been limping along for the last week or so...

    Started by questio verum, 09-30-2008
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,898
    10-07-2008 Go to last post
  4. iptables port connection limit rule

    I'm trying to secure my ssh port with iptables. So far I successfully limit one ip to connect once a minute: iptables -A INPUT -p tcp --dport 22...

    Started by Shwick, 10-05-2008
    • Replies: 3
    • Views: 8,448
    10-07-2008 Go to last post
  5. securing compilers (gcc)

    so I need gcc installed on my server to build a few things that arent packaged in Debian. I'm concerned with user security though, since its really...

    Started by NeoIce, 10-05-2008
    • Replies: 4
    • Views: 1,124
    10-05-2008 Go to last post
  6. iptables mac filter behind a primary NAT firewall

    I'm beginning to suspect what I'm attempting is impossible, but will ask, incase I'm missing something obvious. I have a machine behind a nat...

    Started by meshur, 09-30-2008
    • Replies: 2
    • Views: 3,268
    10-02-2008 Go to last post
  7. simply frusterating bad cat BAD CAT!!

    I really hate to put this out there but maybe I cant get an answer anywhere because of how simple this really is but something isnt right and its...

    Started by hardstylurr, 10-02-2008
    • Replies: 0
    • Views: 838
    10-02-2008 Go to last post
  8. need help with netcat

    I just got netcat,I`m trying to use it to test my network.I cant seem to keep the CMD line(black screen) open. Every time I give the nc a command the...

    Started by jtechman, 01-24-2005
    • Replies: 2
    • Views: 2,852
    10-02-2008 Go to last post
  9. ssh server compromized

    I am facing a wired situation. Every time I ssh to my linux box, it automaticall send the root password to Beside this I get a...

    Started by fakrul, 09-16-2008
    • Replies: 8
    • Views: 5,679
    10-01-2008 Go to last post
  10. rkhunter warnings

    Hi all. I am relatively new to Linux, but not a total newbe anymore. I just ran a rootkit scan and found these warnings: I post the scan here:...

    Started by Chielke, 09-29-2008
    • Replies: 6
    • Views: 8,798
    10-01-2008 Go to last post
  11. how to add tapeware port 3817 in centos 5 firewall

    anyone know how to add tapeware port 3817 in centos 5 firewall terminal. What's the command?

    Started by ongch, 09-27-2008
    • Replies: 3
    • Views: 3,498
    09-28-2008 Go to last post
  12. about open source anti virus

    Hello What is the best open source anti virus? what is your opinion about Avast AntiVirus ? Thanks

    Started by mohammadmahdi, 09-15-2008
    • Replies: 6
    • Views: 1,282
    09-27-2008 Go to last post
  13. squid proxy firewall

    folks, is the Squid a proxy firewall (or application layer firewall)?? wikipedia says: Third generation - application layer ... application...

    Started by gustavolinux, 09-25-2008
    • Replies: 1
    • Views: 1,906
    09-26-2008 Go to last post
  14. Firewall for Damn Small Linux

    Hello, I am using DSL with Vmware and need to build a firewall with DSL....Any kind of help would be appreciated.

    Started by vistauser, 05-15-2008
    • Replies: 2
    • Views: 3,733
    09-23-2008 Go to last post
  15. Google is keep on warning

    Since two days I'm getting warning messages from Google as my computer were infected with viruses or spy programs. I'm being banned from the search...

    Started by minthaka, 09-20-2008
    • Replies: 9
    • Views: 1,171
    09-21-2008 Go to last post
  16. Rootkit questions - suspect compromised box

    I have reason to suspect my box has been compromised by a rootkit. I recently cleaned my drive and installed Ubuntu Studio. In the process I pulled...

    Started by questio verum, 09-19-2008
    • Replies: 5
    • Views: 1,199
    09-20-2008 Go to last post
  17. 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: 2,499
    09-20-2008 Go to last post
  18. Angry Directory is not secure while browsing the link

    Hi All, When I'm browsing the following link at my machine, it's showing the directory structure under railwaysite folder. Is there any way, I...

    Started by Sangal-Arun, 09-16-2008
    • Replies: 1
    • Views: 789
    09-17-2008 Go to last post
  19. Help with atd.tgz

    Hello everyone, someone has uploaded the atd.tgz to my server. how do i know if any damage is done already? what can i do to fix the problem and...

    Started by lazyjimmy, 09-15-2008
    2 Pages
    1 2
    • Replies: 11
    • Views: 1,931
    09-16-2008 Go to last post
  20. Server affected by botnet! keeps on sending mail

    Hi all, I am not a full time sys admin but I am given the partial responsibility of keeping two of the servers up and running. Recently one of...

    Started by ajith123, 09-09-2008
    • Replies: 6
    • Views: 3,124
    09-15-2008 Go to last post

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