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Linux - Security

Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.

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Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,966
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,204
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,094
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,336
Sticky: If you infected by any of these recent ELF malware cases please contact us? ( 1 2 ) malwaremustdie	04-22-2019 10:06 PM by malwaremustdie	21	40,798
Sticky: More Alerts Alert (TA14-017A) UDP-Based Amplification Attacks (Revised 12 Apr 2016) tronayne	07-14-2020 10:32 AM by RickDeckard	2	30,791
Can't find CentOS STIG referenced in DISA STIG security profile Chantillian	03-16-2018 09:37 AM by Chantillian	1	1,742
[SOLVED] Need secure connection to VNC server mfoley	03-17-2018 01:41 AM by mfoley	6	12,629
Best way to use Windows home drives being logged into Linux-IDMU is going away jfaye	03-17-2018 08:06 AM by sundialsvcs	2	560
Question about fanotify behavior: if 2 or more processes monitor the same file wzis	03-17-2018 06:40 PM by wzis	0	624
encrypted instant messenger with pgp (help and suggestions) BlackHawk	03-18-2018 06:53 PM by sneakyimp	7	869
GnuPG backup failure... ooops. shwaybotx	03-18-2018 07:32 PM by sneakyimp	4	908
How to find and stop coin mining on the web server? euduca	03-21-2018 06:37 PM by sneakyimp	9	1,385
Exploiting race conditions in privileged programs sreeharsha1988	03-23-2018 07:24 AM by sundialsvcs	8	764
What a mess! Danwilliams1989	03-23-2018 08:12 AM by Habitual	8	1,002
Password Protect Folders tommytomato	03-23-2018 01:37 PM by scasey	9	1,219
[SOLVED] Local Sendmail install relaying through smtp.gmail.com - is login secure? mtlhd	03-26-2018 08:53 AM by mtlhd	2	1,212
Snort not send Alert to remote syslog server yackluminoso	03-29-2018 04:21 AM by JJJCR	1	2,778
Iptables-persistent package make Fail2Ban rules double, how to correct? samul	03-29-2018 11:50 AM by samul	2	1,356
Need to prevent ssh remote server redirect to a local file iksrazal	04-02-2018 01:06 AM by tibiv12	14	1,210
Installing java in firefox sirius57	04-02-2018 02:08 AM by ondoho	5	731
[SOLVED] automounting encrypted filesystem on another partition at login, not ~, not / hankreardon	04-03-2018 03:57 PM by linuxbawks	3	703
My VPN used to work with Network Manager... not now. chaz_bro1972	04-03-2018 11:19 PM by chaz_bro1972	4	587
[SOLVED] Can't open a gpg encrypted folder Bourbon	04-04-2018 04:46 AM by Bourbon	4	833
Spectre/Meltdown Intel ME; Rooted Firmware; RKHunter, Files checked: 137 Suspect files: 107.... "uh, I think I've been hacked" LinuxMintyFresh	04-07-2018 01:53 AM by LinuxMintyFresh	14	3,680
[SOLVED] Password required to hibernate ??? ACRIzona	04-07-2018 06:21 PM by linuxbawks	3	1,331
pam_access(crond:account): access denied for user `root' from `cron' newbie14	04-08-2018 03:35 AM by unSpawn	1	5,399
Trying to setup SELinux rtcary	04-08-2018 11:14 AM by rtcary	3	583
OpenVpn and tcpdump output shows activity on two ip ranges. bulgin	04-09-2018 05:05 PM by sundialsvcs	1	1,364
I think my server is breached mboncalo	04-10-2018 08:09 AM by Habitual	8	746
Novice needing help Danwilliams1989	04-13-2018 09:12 AM by snowman81	2	734
Tips for securing mail-server? What services and tools to use? chapteriiv	04-13-2018 09:32 AM by TenTenths	2	510
Beefing up online privacy trainspotting	04-13-2018 04:21 PM by trainspotting	3	674
[SOLVED] weird apparmor_status output validator456	04-14-2018 01:18 PM by validator456	4	557
Sending Snort Logs to ELK snowman81	04-14-2018 09:29 PM by Habitual	1	6,416
Dnscrypyt problem help actinide	04-16-2018 05:48 PM by actinide	0	647
Spectre and Meltdown Mitigation with Ubuntu 16.04 donald3.heckel	04-16-2018 11:32 PM by donald3.heckel	2	1,026
Seems like Server is Compromised tux75	04-17-2018 11:36 AM by scasey	10	741
check hashsums qrange	04-19-2018 07:09 AM by qrange	4	598
[SOLVED] Tor browser actinide	04-19-2018 09:28 AM by actinide	2	845
Permissions under /etc cbing	04-20-2018 02:19 AM by JJJCR	10	729
Is it possible to change when Linux ask for a password indication Robert200	04-20-2018 09:02 AM by ondoho	2	827
Heimdal or MIT Kerberos Turbocapitalist	04-22-2018 01:31 AM by AwesomeMachine	1	3,145
How to minimizing performance impact from Spectre and Meltdown fix anant.konchada	04-22-2018 07:47 AM by TB0ne	6	2,252
Metasploit payload handler not starting venkibellu	04-22-2018 01:45 PM by venkibellu	0	3,281
Intensive portscans from all over the world tfstfs	04-22-2018 06:10 PM by sundialsvcs	4	2,609
Penetration Testing ( 1 2 ) SteelCitySteve	04-22-2018 08:29 PM by JJJCR	27	1,715
Explain it to me like I am 5.... aw12	04-23-2018 08:37 AM by Turbocapitalist	3	1,154
Are there any security benefits of having GRUB2 on external USB flash? displace	04-24-2018 09:15 AM by _roman_	4	849
What's the difference between VNC through SSH tunnel and VNC SSL? seraf	04-24-2018 11:07 PM by kfritz	2	1,852
does 2 factors authentication work with locking screen? enceladus	04-25-2018 12:13 AM by enceladus	5	668
[SOLVED] Concern with ssh public keys MaverickApollo	04-25-2018 03:36 AM by Turbocapitalist	3	687
WhyTo: Using SQL placeholders to avoid SQL-injection sundialsvcs	04-25-2018 08:44 PM by sundialsvcs	0	667
rkhunter found 2 possible rootkits tuxthegreat	04-26-2018 12:10 PM by Habitual	13	7,847
How find users without login 3 months ago or more and block it alxreds	04-26-2018 05:54 PM by scasey	1	565
Squid:Difference tcp_outgoing_address and http_port noisette	04-26-2018 05:59 PM by noisette	0	1,191

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