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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	30,785
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	40,770
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,331
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,089
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,154
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,925
Kodachi, Tails, Qubes, Blackarch, Parrot Linux, Kali Linux, Alpine Linux? ( 1 2 ) Novatian	01-23-2021 09:19 AM by Novatian	17	9,035
Goodbye kerberized telnetd? camerabambai	01-23-2021 12:47 AM by camerabambai	0	662
Is my Fail2Ban working properly? n00b_noob	01-21-2021 03:33 PM by TB0ne	3	1,220
Restricting root to su - my UID xtansat	01-21-2021 07:40 AM by igadoter	2	467
iptables and ipset lists sniper8752	01-16-2021 02:41 AM by oswerks	2	696
kernel slcklnx	01-15-2021 06:25 PM by slcklnx	2	408
Hide presence of load balancer [Qualys] nejnej25	01-15-2021 05:45 AM by nejnej25	0	1,200
How to find who make a lot of request? n00b_noob	01-13-2021 01:53 PM by scasey	5	509
How to configure Fail2Ban? n00b_noob	01-13-2021 08:25 AM by jeremy	6	2,114
Add sidebar to Tor browser notooth	01-12-2021 08:36 AM by boughtonp	5	881
Looking for the Linux equivalent of Axcrypt ( 1 2 ) joden1	01-12-2021 02:24 AM by pan64	29	2,563
Alternative to /etc/hosts/allow on CentOS8 elliot01	01-11-2021 10:12 AM by Tobler	13	19,337
Are these number of connection active or deactive? n00b_noob	01-11-2021 07:26 AM by wpeckham	4	442
GPG command line encryption villumanati	01-10-2021 04:21 PM by Michael Uplawski	11	1,635
Need help with understanding rkhunter markLopez09	01-09-2021 12:52 PM by markLopez09	2	1,111
After setting STIG gdm does not start Corrado	01-08-2021 12:01 PM by rmmcbride	4	2,139
Privilege separation best practices Turbocapitalist	01-08-2021 11:04 AM by pan64	5	1,150
C Library for lsof loki.guz_BR	01-08-2021 01:06 AM by JackLyu	2	8,790
Somebody trying to break in to my new VPS? Cause for concern? walterbyrd	01-03-2021 01:52 PM by JSB	13	2,228
sudo trying to run flatpack? I didn't knowingly even load flatpack. jorton	01-02-2021 02:10 PM by RickDeckard	10	1,420
[SOLVED] [sudoers]How-to edit '/etc/sudoers'? anon093	01-02-2021 01:51 PM by RickDeckard	3	1,971
Why is our country not using a "hardened" linux as a defense against hacking attacks? ( 1 2 3 ) azalea4va	01-02-2021 01:43 PM by RickDeckard	40	2,066
osslsigncode error:crypto/asn1/tasn_dec.c:309:Type=PKCS8_PRIV_KEY_INFO shams	12-29-2020 03:32 AM by pan64	1	1,247
The key or hash, for the Enrolling of efi binaries in the MOK manager window? shams	12-27-2020 08:19 AM by teckk	1	2,462
Encrypted Email Service(s) ( 1 2 ) GPGAgent	12-24-2020 11:07 AM by ondoho	16	1,435
Torrent client and open ports hifi100	12-20-2020 06:43 PM by zeebra	8	2,443
[SOLVED] iptables-restore run but keeps reverting - related to ufw? nachtmsk	12-19-2020 05:29 PM by michaelk	4	1,109
[SOLVED] Changed SSH port but still see login attempts in auth.log on Ubuntu 14.04.6 nachtmsk	12-17-2020 10:33 AM by tdsan	9	2,672
[SOLVED] /etc has blocks of files with similar timestamps -- hacked? nachtmsk	12-17-2020 08:50 AM by nachtmsk	3	846
Restricting different services to different subnets with FirewallD Vanyel	12-16-2020 08:36 AM by Vanyel	2	1,501
run command on ssh inactivity? lil_drummaboy	12-15-2020 11:27 AM by jds2726	6	1,598
[SOLVED] Compromised or just an old farts memory? Incorrect password on my desktop with Lubuntu installed. jokerzwild53	12-14-2020 03:47 PM by zeebra	6	831
installing opensnitch deb package without compiling? Herve5	12-12-2020 06:12 PM by HappyTux	3	1,337
[SOLVED] iPhone can't see Print queue thru Firewall TechnoJunky	12-12-2020 10:48 AM by TechnoJunky	6	965
If I use DNS over HTTPS can my ISP still track my browsing habits ? ( 1 2 ) hifi100	12-10-2020 06:56 AM by wpeckham	17	1,283
How to discover distros that are signed for Secure Boot ( 1 2 ) Ulysses_	12-04-2020 05:00 PM by jeremy	27	10,447
Identifying IP addresses of hackers ( 1 2 ) James Kiersten	12-04-2020 02:28 PM by rnturn	20	1,347
Mint 19 desktop no internet issue? Novatian	12-01-2020 10:51 AM by ferrari	3	660
[SOLVED] VPN routing on IPFire Mark_667	11-28-2020 06:34 AM by Mark_667	1	1,456
Best way to capture volatile memory walterbyrd	11-27-2020 09:26 AM by iTick	1	985
How to either disable or fix Apparmor? berndbausch	11-24-2020 08:02 PM by berndbausch	4	3,731
Unknown user? Noone_	11-23-2020 04:19 AM by Noone_	4	1,014
esp encryption algorithm sha384 and sha512 not supported Li Zhao	11-20-2020 09:59 AM by sevendogsbsd	1	693
UFW in ubuntu not blocking IP range Dooku	11-18-2020 02:40 PM by ondoho	1	923
Shared WiFi and VPN and Tor? Novatian	11-18-2020 12:48 AM by ondoho	6	939
SLES15 Default Iptable rule causing issue bspteam00	11-16-2020 06:49 AM by Rawcous	1	959
Kodachi password choice? Novatian	11-15-2020 02:54 PM by sgosnell	1	5,218
Tor Browser does not open in Manjaro. Novatian	11-15-2020 09:07 AM by teckk	1	1,025
Do social networks know which os we're running? ( 1 2 ) JASlinux	11-14-2020 08:52 AM by //////	16	1,297
Clicked a Phishing Link in Firefox on Ubuntu Mate 20.04 FuzzyHat	11-13-2020 03:38 PM by FuzzyHat	8	2,334

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