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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	30,778
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	40,744
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	18,084
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,108
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,879
SSL - Signed vs non-Signed wh33t	06-20-2014 12:59 PM by sundialsvcs	8	1,286
unwanted connections Michaelx	06-20-2014 10:04 AM by Michaelx	3	813
firewall / lsof -i shows open port Michaelx	06-20-2014 09:01 AM by sundialsvcs	1	1,055
netstat shows SYN_SENT with wrong / multiple PID texupport	06-20-2014 01:23 AM by unSpawn	3	1,770
Take care of open relay issue Ethichackman	06-19-2014 03:21 PM by Noway2	2	780
PHP function exec enabled, how big issue? ( 1 2 ) postcd	06-19-2014 12:13 PM by sneakyimp	18	7,963
Does anyone know what these people are trying to do? baldur2630	06-19-2014 12:11 AM by baldur2630	6	1,998
Encryption on the Fly by user stany001	06-18-2014 06:37 AM by linosaurusroot	1	1,068
VNC connection logs ? steak1987	06-17-2014 03:22 AM by jacksonking112	4	18,101
Hardening Amazon EC2 instance: help examining initial package list? sneakyimp	06-16-2014 08:07 PM by sneakyimp	2	1,862
[SOLVED] IDS Alerts and the web server log from the same time period,what I can do? gingerbread	06-16-2014 02:05 PM by gingerbread	4	2,278
[SOLVED] Nautilus CD burn permissions clcbluemont	06-16-2014 12:32 PM by clcbluemont	5	1,833
Possible hack, gen.xyz ? mjbradakis	06-15-2014 04:56 PM by mjbradakis	2	3,130
[SOLVED] delete key failed: eof gpg mtdew3q	06-14-2014 07:39 PM by mtdew3q	4	8,684
New SFTP server shaileshjain	06-13-2014 03:14 AM by colucix	1	911
Packet modification problem mutwkil	06-12-2014 04:08 PM by unSpawn	1	683
MySQL and Barnyard with snort issue pra838	06-12-2014 04:04 PM by unSpawn	4	6,158
Is there a way to provide multiple iptables rules in a single shell command? gprathap1121@gmail.com	06-12-2014 10:32 AM by smallpond	1	1,934
OpenSSL and Gmail jokar.mohsen	06-12-2014 09:35 AM by TB0ne	4	1,266
Network steganography problem mutwkil	06-11-2014 05:05 AM by mutwkil	2	920
[SOLVED] Obscure adware keeps popping up ( 1 2 ) Cyberman	06-10-2014 12:44 PM by Habitual	17	3,952
SSHing with RSA SecurID vs. Regular password jkamdar	06-10-2014 11:18 AM by nickowen	8	3,294
Deny Interactive login in linux servers sri4mailing	06-10-2014 03:58 AM by sri4mailing	2	1,918
[SOLVED] sshd not updating know_hosts buckb	06-09-2014 02:56 PM by unSpawn	5	937
[SOLVED] little help to understand iptables ankitsagwekar	06-09-2014 02:27 PM by unSpawn	3	800
Debian Firewall unknown claforce	06-09-2014 11:32 AM by szboardstretcher	3	736
[SOLVED] Suspect sever break-in with user 'sshd' on Ubuntu 12.04, Ebury? vRanger	06-09-2014 10:48 AM by vRanger	12	3,196
[SOLVED] Keepass / Keepassx arodlinux	06-09-2014 01:18 AM by displace	6	6,893
[SOLVED] Lynis tells me I have (removed?) PHP option register_globals option is turned on OtagoHarbour	06-08-2014 12:39 PM by OtagoHarbour	6	6,523
How can I detect or see if there is an intruder currently logged onto my server? vRanger	06-08-2014 01:26 AM by coralfang	2	4,356
2 different encrypted Linux installations, each with its own password? starriol	06-08-2014 12:54 AM by coralfang	2	800
Separate user account for browser, chat, etc. Worth it? Gullible Jones	06-07-2014 07:49 AM by agentsteel	9	1,157
vulnerability scanning using NMAP on CVE-2014-0322 vulnerability,check vulnerable meeiyoke	06-06-2014 05:09 PM by unSpawn	2	1,666
Hacking windows 7 with metasploit, kali spiderpo	06-06-2014 05:08 PM by unSpawn	3	3,315
Tomoyo2 and symlinks Gullible Jones	06-06-2014 02:39 PM by Dfg	4	1,186
Debian as a 802.1X authentificator barmok	06-05-2014 01:15 PM by dijetlo	1	1,103
Help me iptables TCP wwfkk	06-05-2014 03:33 AM by salasi	4	1,098
High outgoing traffic, probably hacked Endyyy	06-05-2014 01:18 AM by unSpawn	4	1,660
Help me iptables u32 hex length 32 + length 0 wwfkk	06-04-2014 06:48 PM by wwfkk	5	3,250
SQLi madunix	06-03-2014 06:20 PM by unSpawn	2	1,240
[SOLVED] Why can a Samba connection not write to an encrypted partition? taylorkh	06-02-2014 10:33 AM by taylorkh	2	975
Snort logs appear to be empty ( 1 2 3 ) Suburban Errorist	06-01-2014 07:55 AM by unSpawn	36	22,142
[SOLVED] How do you encrypt a USB partition with the Twofish cipher and SHA-512 hash? Cinematography	05-31-2014 07:41 PM by Cinematography	1	1,281
[SOLVED] Test your Linux skill chtois	05-31-2014 10:58 AM by unSpawn	3	898
[SOLVED] Systemd starts gpg-agent mysteriously and does not end it with the last login session Alpha90	05-30-2014 04:00 PM by Alpha90	6	1,641
fail2ban inconsistent in banning hackers compused	05-30-2014 01:56 PM by Habitual	3	1,080
How to restrict a specific user? johnsfine	05-29-2014 06:29 PM by dijetlo	1	764
Which group should own the /dev/input/event files? briselec	05-29-2014 04:57 PM by michaelk	1	761
Iptables block IRC Linux_Kidd	05-29-2014 01:54 AM by TenTenths	3	1,761
How to read "Firewall: TCP_IN Blocked" message? postcd	05-27-2014 02:41 PM by postcd	3	15,567

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