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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	227,875
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,102
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,083
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: 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	40,743
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
debian jessie after dist-upgrade, passwords not working ooccjava	07-14-2015 01:49 PM by wagscat123	1	1,277
File browser thumbnails = code execution? displace	07-15-2015 02:40 AM by displace	7	969
Encrypted Volume - How do I reboot remotely? wh33t	07-16-2015 06:01 AM by syg00	5	955
[SOLVED] Debian 8 - iptables - Weird behaviour morphix	07-16-2015 07:03 AM by lazydog	7	1,703
failed sshd login attempts saba85	07-17-2015 12:27 AM by saba85	5	999
[SOLVED] US-CERT Alert (TA15-195A) Adobe Flash and Microsoft Windows Vulnerabilities tronayne	07-17-2015 09:01 AM by tronayne	3	1,127
what is LOCAL0 through LOCAL7 ? mrpc_cambodia	07-17-2015 05:50 PM by StarMagus	8	72,239
[SOLVED] Non-system partition encryption versus container-file encryption of equal size Ulysses_	07-17-2015 07:38 PM by rknichols	13	1,777
Something is sending SPAM from my server hua	07-18-2015 07:37 AM by smallpond	3	954
What security software is best for Ubuntu 15.04? valgeir	07-19-2015 03:30 AM by unSpawn	8	1,913
port scans - iptables epoo	07-19-2015 12:44 PM by salasi	9	5,242
[SOLVED] dhcp update causes a martian source notice during dns record update spikeygg	07-19-2015 02:24 PM by spikeygg	1	3,149
rsyslog filtering by week mijohnst	07-19-2015 04:30 PM by unSpawn	14	1,285
[SOLVED] Looking for Ubuntu specific hardening guidelines Susie not Suse	07-20-2015 05:37 AM by Susie not Suse	4	961
Secure network boot, Secure NFS alternative? Lop3	07-21-2015 11:55 AM by smallpond	1	2,264
[SOLVED] Show failed ssh connections on systemd shaggyman	07-21-2015 05:46 PM by unSpawn	4	8,135
[SOLVED] IP banging on my firewall from inside - how to track the process back to src ceyx	07-21-2015 05:56 PM by unSpawn	8	1,118
[SOLVED] Can Pidgin Messenger Encrypt my Password? hack3rcon	07-22-2015 03:22 AM by hack3rcon	14	1,675
Cannot start Snort (ERROR: Cannot decode data link type 113) BlackTab	07-22-2015 04:46 PM by unSpawn	3	7,793
Fail2ban with htaccess protected area Ubuntuserver 14.04 failing 2 ban rmpms	07-22-2015 06:21 PM by rmpms	7	3,386
LAF on SLES 11 SP3...What not to Audit to affect Print Spooler? yuhas	07-23-2015 01:52 PM by yuhas	5	1,152
Assign IPtables rules to three different Ethernet Interfaces on same Server Rohant	07-29-2015 08:29 AM by sundialsvcs	2	3,003
What is Kaiten Trojan? linuxsafety	07-29-2015 08:44 AM by sundialsvcs	9	2,697
Active Directory Integration dr.phuongnpt	07-30-2015 03:44 AM by dr.phuongnpt	0	758
Cant remember passphrase combination for knoppix-data.aes, how do I to extract hash? kujina	07-30-2015 09:58 PM by unSpawn	2	1,231
PCI-DSS - Scanning. maas187	07-31-2015 05:40 AM by mralk3	1	3,019
[SOLVED] Turla trojan for LInux beachboy2	07-31-2015 11:52 PM by beachboy2	5	1,382
Fail2ban is banning, but I need a redirect. rmpms	08-01-2015 12:45 AM by rmpms	10	3,927
Final solution to the password problem: don't allow users to choose passwords Soderlund	08-01-2015 06:41 AM by ondoho	14	1,319
[SOLVED] Blocking a brute force password hacker Lop3	08-02-2015 02:52 AM by unSpawn	3	1,007
ext4 filesystem encryption — is it suitable for ~ ? Mr. Alex	08-02-2015 08:35 PM by syg00	2	1,086
wpa_supplicant username and password in clear text AstroFloyd	08-03-2015 03:01 AM by AstroFloyd	2	8,290
WaPo Essay by McConnelll and Chertoff supporting private cryptography mike acker	08-03-2015 10:50 AM by sundialsvcs	1	855
user/group setup for DAQ Daravon	08-03-2015 01:07 PM by Daravon	4	905
How to log as much as possible about connections to your computer Ulysses_	08-05-2015 02:48 AM by Ulysses_	6	666
[SOLVED] vps hosting problems ( 1 2 ) rblampain	08-05-2015 09:24 AM by mralk3	16	1,534
help with redsocks or any socks redirector dr.x	08-05-2015 09:51 AM by dr.x	3	1,974
Problème avec (dante-server) SOCKS Rayan01	08-05-2015 12:03 PM by fatmac	1	928
How can I permanently delete all iptables rules? Altiris	08-05-2015 06:33 PM by astrogeek	5	6,784
Hundreds of SMS messages that reboot my (flip) phone? sundialsvcs	08-06-2015 08:58 PM by jefro	6	7,615
barnyard2 problem shidrang	08-08-2015 09:05 AM by shidrang	3	1,809
Some security through obscurity upnort	08-10-2015 07:53 PM by upnort	2	1,115
Help for launching a SIEM. hack3rcon	08-11-2015 10:15 AM by shidrang	7	1,882
iptable quotas by ip Sefyir	08-12-2015 11:33 AM by lazydog	1	1,029
[SOLVED] sudo limit su - (everything but) jdveencamp	08-14-2015 07:49 AM by ramin1981	2	1,524
What New Algorithms Encryption File Software of the best 2015? joehk	08-14-2015 08:25 AM by sundialsvcs	3	916
Comparing the Security Practices of Experts and Non-Experts metaschima	08-14-2015 05:49 PM by suicidaleggroll	7	1,004
Intel sinkhole rootkit info aus9	08-14-2015 06:07 PM by unSpawn	8	1,265
VPN connection for specific applications lamic	08-18-2015 11:46 AM by lamic	4	928
Would drop rules at the top of input chain affect other protocols/traffic? JockVSJock	08-18-2015 03:11 PM by JockVSJock	6	1,055

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