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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: More Alerts Alert (TA14-017A) UDP-Based Amplification Attacks (Revised 12 Apr 2016) tronayne	07-14-2020 10:32 AM by RickDeckard	2	30,776
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	40,736
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,325
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,082
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,093
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,861
Tor bridges problem actinide	06-18-2018 07:07 AM by AwesomeMachine	3	1,072
restrict sudo su bediinderjit	06-18-2018 07:05 AM by AwesomeMachine	6	1,151
gpg signature spoofing mike acker	06-18-2018 07:00 AM by AwesomeMachine	1	506
Critical PGP and S/MIME bugs ( 1 2 ) mike acker	06-16-2018 08:37 AM by ntubski	16	2,112
Issue in sending requests to servicenow application after RHEL upgrade bvani11	06-15-2018 07:35 AM by TB0ne	5	729
sshd running as a daemon and as separate process on diff port - iptables. myjess	06-14-2018 08:51 PM by JamesAM	3	694
[SOLVED] UFW blocking same MAC address.... ( 1 2 ) mr.travo	06-14-2018 04:31 PM by mr.travo	24	10,276
[SOLVED] seeking logging for failed passwords SaintDanBert	06-09-2018 04:07 PM by SaintDanBert	8	888
[SOLVED] iptables log only first connections tonic75	06-09-2018 06:01 AM by tonic75	2	1,032
Snort Rules IPS fierrepurba	06-08-2018 01:01 AM by pan64	1	513
Pretty interesting concept and case for ecc ram, bitsquatting AwesomeMachine	06-06-2018 01:21 AM by syg00	1	597
port 5432 open nmap online but closed status with firewalld and local nmap scan mtdew3q	06-04-2018 06:20 PM by Habitual	6	3,614
Nginx too many *4185 open() errors ( 1 2 ) newbie14	06-04-2018 05:43 PM by Habitual	15	1,899
advice on how to get system back-pnscan/FbI warning mtdew3q	06-04-2018 10:33 AM by Habitual	4	584
Regarding SYNC FLOOD in CSF rules ping4support	06-03-2018 10:52 PM by AwesomeMachine	1	1,106
SELinux Source compilation and integration with centos7.4 vishwa0220	06-03-2018 11:39 AM by vishwa0220	3	1,615
AppArmor fails on start-up, seems like it's due to MySQL MrMeeSeeks	06-01-2018 08:55 PM by AwesomeMachine	1	4,651
openvas on Kali manox	06-01-2018 08:46 PM by AwesomeMachine	1	1,214
Need evaluation of my firewall rules DevGuy	05-31-2018 07:43 PM by DevGuy	11	736
[SOLVED] Gnome Commander security issue taylorkh	05-31-2018 04:47 AM by amiba	5	4,595
iptables - marking incoming tunnel traffic CrazyDavy	05-31-2018 04:18 AM by jlinkels	1	741
iptables and conntrack - rules to set a statefull firewall cbomfim	05-29-2018 04:34 PM by cbomfim	2	879
Since mainline-kernel, presumably 4.16.7, no content in /boot/retpoline-4.16.x-xxxxx-config. Why? Andreas7	05-29-2018 01:36 PM by AwesomeMachine	4	1,029
Linux -> VM -> Windows physical service booth ramboman	05-29-2018 12:49 PM by AwesomeMachine	2	537
Problems with rkhunter 1.4.6 ChuangTzu	05-29-2018 12:09 PM by AwesomeMachine	3	1,194
[SOLVED] clam av - does it need the s option to be a system user (adduser) mtdew3q	05-28-2018 07:38 PM by mtdew3q	1	596
How to stop an attacker over ssh? birdy-97	05-28-2018 12:31 AM by ondoho	10	864
Chkrootkit: The tty of the following user process(es) were not found allan_registos	05-27-2018 05:16 AM by unSpawn	1	3,302
Locked out of Centos 7 remote server DevGuy	05-25-2018 01:45 AM by syg00	6	1,596
Are there domain specific language best practices? Tobby P	05-23-2018 11:40 AM by Tobby P	4	744
Linux Firewall to Reject Outgoing Nonlocal Traffic quantumxaos	05-22-2018 12:10 AM by AwesomeMachine	3	1,067
Linux Tails Hanicka	05-22-2018 12:04 AM by AwesomeMachine	2	893
[SOLVED] firejail qrange	05-20-2018 06:23 AM by michaelfox	1	782
[SOLVED] Newbie Request for Direction Tsproull	05-17-2018 01:28 PM by Habitual	1	520
Snort-other ports are caught. k.um	05-15-2018 08:53 PM by k.um	0	769
Filtering iptables forwarded traffic sniper8752	05-15-2018 01:45 PM by rknichols	5	512
Trouble removing adware from firefox (Linux Mint 18.3) smackeral	05-14-2018 12:02 AM by axdoomer	6	2,309
SSL communication error - TCP connection reset by peer kumar.ch528@gmail.com	05-13-2018 06:08 PM by kumar.ch528@gmail.com	2	12,723
virustotal qrange	05-13-2018 06:33 AM by dave@burn-it.co.uk	9	1,596
Can I use DenyHosts with UFW? wh33t	05-12-2018 05:25 PM by Habitual	2	1,332
hashes, yet again qrange	05-09-2018 08:14 AM by qrange	5	819
Security File Encryption Tool? ( 1 2 ) Battle Laugh	05-08-2018 08:03 AM by Habitual	19	1,153
malware analysis programming language? kudtu	05-07-2018 11:43 AM by Habitual	8	790
Is connecting without a router risky ? hifi100	05-06-2018 05:55 AM by hifi100	11	757
Secure my Nextcloud server at home... mr.travo	05-05-2018 12:01 PM by mr.travo	5	1,817
How to disable SELINUX? SimpleTricks	05-05-2018 03:58 AM by AwesomeMachine	13	5,901
ESET NOD32 Antivirus 4 for Linux ( 1 2 ) alan_ri	05-04-2018 12:41 PM by bamunds	15	5,197
Repetitive occurance of [sync_supers] process for www-data user d.chaudhari	05-04-2018 08:17 AM by Habitual	4	2,640
"Critical" vulnerability rating on OpenVAS 9 rm1984	05-03-2018 05:48 PM by rm1984	0	993
[SOLVED] Security problem with Firefox Addon? validator456	05-02-2018 07:50 AM by validator456	5	859

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