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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: 66,570
    01-11-2010 Go to last post
  1. Port not opened ?

    iptables -L This ruleas are written by firestarter and all works like it should, but port 11381 is not opened. Any comment ? I mean, red...

    Started by BubikolRamios, 08-19-2015
    • Replies: 2
    • Views: 2,581
    08-20-2015 Go to last post
  2. centos + firestarter

    if I look at etc/sysconfig/iptables I see: Namely both ports should be opened ? Nope, testing with Open Port Check Tool - Test Port Forwarding...

    Started by BubikolRamios, 08-18-2015
    • Replies: 0
    • Views: 1,728
    08-18-2015 Go to last post
  3. Default ufw settings

    Is running ufw default settings ok to run? I mean i know its default settings, but this is just for a daily use nothing fancy. no downloads just web...

    Started by lulzboat, 07-17-2015
    • Replies: 0
    • Views: 3,225
    07-17-2015 Go to last post
  4. Can you suggest installable distro with non-persistent sessions?

    Hello, I wanted to ask if you can, please, suggest security distro that is the closest to what I try to find. I have read about many distros and...

    Started by virginia123, 07-08-2015
    • Replies: 3
    • Views: 1,355
    07-11-2015 Go to last post
  5. Protecting Identity visiting sites?

    There are some sites I visit that I would like to remain anonymous. I am considering using a VPN or Tor/Tails. How well do these technologies protect...

    Started by JoeS, 03-21-2015
    • Replies: 4
    • Views: 3,012
    07-09-2015 Go to last post
  6. Firewall blocking local connections?

    Hello, my server web based control panel is accessible, but somehow cant connect to the server (no_socket_connect_to_server): Please can i ask...

    Started by postcd, 07-03-2015
    • Replies: 2
    • Views: 1,809
    07-07-2015 Go to last post
  7. Linux Malware Detect(Maldet) does it come with gzbase64.inject

    Hello All: We installed Maldet yesterday to scan for malwares and we found gzbase64.inject.unclassed. Does this come along with the package of...

    Started by bipin82, 06-26-2015
    • Replies: 0
    • Views: 1,144
    06-26-2015 Go to last post
  8. securing ssh using iptables?

    I was recently reading an article on better securing ssh. It recommended taking a look at /var/log/auth.log to see if there had been any suspicious...

    Started by jamtat, 06-17-2015
    • Replies: 1
    • Views: 2,297
    06-17-2015 Go to last post
  9. Capture sudo replay for root user

    I have setup sudo and using sudoreplay.However some of my DBA's have root access so is there a way that I can use sudo replay to capture their...

    Started by tshepang, 06-02-2015
    • Replies: 1
    • Views: 3,414
    06-02-2015 Go to last post
  10. Grub menu/MBR modifications

    I have an offline computer that's suddenly had it's mbr changed. I had a 10 s timeout, who suddenly has disappeared. By removing one older kernel...

    Started by mrbigfoot, 05-31-2015
    • Replies: 2
    • Views: 2,089
    05-31-2015 Go to last post
  11. Question What, In Your Opinion, Is The Most Secure, Lightweight Forum Software?

    Good day everyone, I am in the midst of setting up a very small community on a few servers. I have browsed the web looking at the different forum...

    Started by Xorg, 05-11-2015
    • Replies: 2
    • Views: 2,715
    05-13-2015 Go to last post
  12. Using keepass2 for mono, cannot paste, ctl-v in the password?

    Hello, I'm using keepass2 for Linux and it's supposed to run under mono. Although I have no experience with mono, it seems to run the same either...

    Started by jkwilborn, 04-18-2015
    • Replies: 2
    • Views: 1,881
    04-19-2015 Go to last post
  13. ntpd attack,why?

    Hello, i got this message ( that one of VPS participated in NTP attack. Im providing an VPS to one person, this is running...

    Started by postcd, 04-09-2015
    • Replies: 1
    • Views: 2,580
    04-09-2015 Go to last post
  14. how to secure the hdd: can i make the notebook safe with LUKS ?

    hello and good evening dear linux-experts and users i have bought a new notebook and just did a installation. I installed a opensuse-system - the...

    Started by sayhello, 02-26-2015
    • Replies: 1
    • Views: 3,246
    04-02-2015 Go to last post
  15. Root user password resets after reboot

    Hi I have a seagate central nas. The root user has no password, so I set one and it works. But when I reboot the system it dissappears, no...

    Started by Pgaroth, 10-01-2013
    • Replies: 3
    • Views: 4,221
    03-24-2015 Go to last post
  16. Linux user with SSH read-only access to one folder?

    Hello, i would like to have an "backup" user who will have read-only SSH access to the folder /backup which is used to store server data...

    Started by postcd, 03-19-2015
    • Replies: 1
    • Views: 1,478
    03-20-2015 Go to last post
  17. Lightbulb Trying to encrypt with ecryptfs a home folder on a Ubuntu live usb key

    0 down vote favorite I am trying to use ecryptfs on a Xubuntu 14.10 live usb key with casper-rw persistency to encrypt the home folder of the...

    Started by patlefox, 02-13-2015
    • Replies: 1
    • Views: 1,403
    02-16-2015 Go to last post
  18. Conntrack table records and high PPS

    Hello, an software reported to me that on my VPS is high packets per second. and it given me some lines out of conntrack table: ipv4 2 tcp 6 92...

    Started by postcd, 02-01-2015
    • Replies: 1
    • Views: 2,045
    02-02-2015 Go to last post
  19. su or sudo password

    I'm on OS X but I thought it wouldn't matter since my problem seems like it would be the same for Linux. When I type su or sudo in the Terminal, the...

    Started by splash_wave, 01-28-2015
    • Replies: 6
    • Views: 2,062
    01-30-2015 Go to last post
  20. A few security issues to solve on my school... or try to..

    Hello, This is going to be a pretty long post so I'm going to try to explain everything very clearly... The problem: My school which has...

    Started by Joaogl, 01-09-2015
    • Replies: 2
    • Views: 1,770
    01-30-2015 Go to last post

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