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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	227,965
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: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,204
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
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: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,094
appimage and sandbox chomwitt	04-24-2021 11:15 AM by jsbjsb001	6	3,853
Is it possible to hack the computer via USB ? joboy	04-23-2024 11:18 PM by joboy	6	226
[SOLVED] Firewall and Antivirus? Thomas Harmon	06-09-2023 05:42 AM by Thomas Harmon	6	213
In Ubuntu and Mint, what is the best security hardening tutorial? Novatian	01-04-2023 08:38 PM by craigevil	6	875
What controls the file mode of the audit log? bradvan	08-10-2021 03:33 AM by bradvan	6	1,039
Hacked or Trojaned? Jackson111	04-19-2021 11:54 AM by ondoho	6	1,036
Sign user space application zvivered	01-07-2022 04:30 PM by TB0ne	6	508
[SOLVED] Someone has chmod 777 /etc on my virtual machine... can I repair without root? MikeyCarter	11-15-2021 10:15 AM by MikeyCarter	6	952
anyone know a site that is running in IPv6 ? //////	02-27-2024 04:30 PM by Linux_Kidd	6	228
NSA/CISA announce updated guidelines for hardening VPNs (links included) sundialsvcs	11-17-2021 01:56 PM by blueicetwice	6	1,273
[SOLVED] how2 read suspected junk mail pandanuma	03-08-2022 02:42 PM by pandanuma	6	497
Disable tenet (port 23) on CentOS 7 cdunavent	09-07-2023 07:37 AM by TB0ne	6	541
[SOLVED] Security doubt about ssh-copy-id banderas20	07-21-2023 08:09 AM by banderas20	6	254
[SOLVED] Normal iptables rules Jason.nix	03-31-2023 07:49 PM by ForestuX	6	495
openssl verify throwing unexpected error 24. zaxonus	07-24-2021 08:13 AM by JockVSJock	6	839
[SOLVED] nftable log to another file than /var/log/messages ? Sponge_Bob	03-01-2022 11:25 PM by chrism01	6	1,617
Should I run chromium-sandbox or plain chromium? max.b	11-12-2021 03:06 AM by cynwulf	6	1,867
signing a cert vinmansbrew	03-24-2022 09:08 AM by sundialsvcs	6	351
[SOLVED] Why should all ports be closed? Jason.nix	02-17-2024 12:37 AM by Michael Uplawski	6	278
Aescrypt vs. OpenSSL JASlinux	04-18-2021 07:07 AM by JASlinux	6	1,835
How can I hide my URI requests from a snoopy modem? lucmove	06-28-2021 01:54 PM by Linux_Kidd	6	863
[SOLVED] LUKS drive cannot be unlocked anymore (produces "Invalid argument" error) pusrob	01-26-2022 08:47 PM by Pentos	6	8,778
Developing a GUI based hardening script for Ubuntu operating system with flexibility to cater for organisational security policies TheDarkArtist	09-20-2023 04:59 PM by boughtonp	6	688
Botched TCP wrapper remotely; how can I connect? Haste is needed! geoweaser	06-03-2022 06:21 AM by geoweaser	6	296
IPP Printing Security mike acker	04-13-2023 08:13 PM by ferrari	6	388
How often does Thunderbird negotiate a login? halfpower	11-29-2021 10:35 AM by halfpower	6	1,425
In UFW, how can I mitigate the danger of exposing needed port 53? liquidglass	07-07-2021 02:24 AM by ondoho	6	669
Windows Malware and Linux Blakes7	04-17-2021 06:27 AM by Blakes7	6	766
Best certs or courses for Linux Security? quiero424	10-16-2023 08:01 PM by sag47	6	229
Guys how do I close these open ports? All I have is a mobile service and spectrum Internet. Theo1968	12-23-2023 01:20 PM by Aeterna	6	345
[SOLVED] SSH giving server refused public-key signature despite accepting key linuxisnew2me	09-19-2022 01:48 PM by younda	6	24,559
iptables connlimit-mark question kenw232	10-20-2023 11:11 PM by Person_1873	6	201
[SOLVED] What part of the Fail2Ban configuration is wrong? Jason.nix	02-26-2024 11:45 PM by Jason.nix	6	319
IDS/IPS vs WAP. n00b_noob	03-02-2021 12:42 PM by n00b_noob	6	617
[SOLVED] Github is a mess? what to do about it/ access denied cloning rico001	02-24-2024 03:57 PM by rico001	6	263
[SOLVED] Changing UID & GID for existing user yogesh_attarde	08-31-2019 03:02 AM by zeebra	5	6,641
view gpg file another way sniper8752	02-04-2019 10:35 AM by pan64	5	826
[SOLVED] How can the polkit daemon launch something like synaptic when it isn't a privileged user? hazel	12-25-2019 09:10 AM by hazel	5	935
Is josepy a weak link in letsencrypt? slac-in-the-box	03-28-2019 01:25 PM by ondoho	5	1,228
[SOLVED] spam bypassing captcha!!! cmgeo	03-08-2019 12:45 PM by scasey	5	956
additional security measures for a mail server sniper8752	01-28-2020 12:50 AM by linom	5	624
Removing Amazon AWS from firefox. [Solved] hal8000b	03-11-2020 04:26 PM by hal8000b	5	2,672
[SOLVED] Nftables Issue permaroot	09-29-2019 04:52 PM by permaroot	5	2,644
fstab mounting cifs voumes in file_mode=755 / readonly , needs to be readwrite gregorywest	11-23-2019 02:00 AM by business_kid	5	2,915
[SOLVED] /etc/hosts block lists anon033	06-30-2019 02:48 AM by ondoho	5	810
[pppd] how to check the security issue CVE-2020-8597 beziabdelkarim	03-08-2020 09:48 AM by allend	5	1,169
[SOLVED] Question: Generating and using you own SSL client certs haertig	02-09-2019 08:26 AM by sevendogsbsd	5	665
sshd and PAM consulting asafd	10-07-2019 09:08 AM by TB0ne	5	495
Why should I check the hash of a file that was downloaded or downloaded via ssh? cesarsj	12-15-2019 11:39 AM by RickDeckard	5	789
[SOLVED] I fiddled with ssh and cannot start the service again on Ubuntu.... dsl_	04-09-2019 07:26 AM by dsl_	5	6,839

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