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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	40,743
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	18,083
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,106
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,875
how concerning should this be ?new strange boot and shut down messages showed up suddenly dogmaiamgod	11-23-2021 02:49 PM by smallpond	3	1,068
fail2ban, ufw, iptables and reboot RickPoleshuck	11-20-2021 12:07 PM by PROBLEMCHYLD	4	949
DNS Cache Poisoning... Again? vtel57	11-18-2021 01:21 PM by vtel57	2	933
[SOLVED] Wipe RAM to prevent Cold Boot Attack lisamint	11-18-2021 08:46 AM by beroal	9	4,160
NSA/CISA announce updated guidelines for hardening VPNs (links included) sundialsvcs	11-17-2021 01:56 PM by blueicetwice	6	1,270
sudo: Root or user password? MirceaKitsune	11-15-2021 01:00 PM by sundialsvcs	13	1,216
[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	951
fail2ban DROP and REJECT RickPoleshuck	11-13-2021 04:43 PM by RickPoleshuck	4	1,740
Should I run chromium-sandbox or plain chromium? max.b	11-12-2021 03:06 AM by cynwulf	6	1,837
[SOLVED] A security expert compares Debian's security to that of Windows XP with partial security updates ( 1 2 ) max.b	11-11-2021 07:55 PM by enigma9o7	27	2,579
how to log into linux without knowing the password? ninelives1980	11-11-2021 10:11 AM by Jan K.	8	4,768
Best Practice where TLS related files are stored on a Linux OS? JockVSJock	11-11-2021 05:44 AM by shruggy	1	877
rhel7. Unlocking User Accounts After Password Failures jmenengo	11-11-2021 04:26 AM by JockVSJock	11	59,804
SSH over SSM and Ansible doodler	11-10-2021 03:45 PM by doodler	0	1,075
Firewall rules trouble with OpenVPN sln	11-07-2021 05:01 AM by JuanKenobi	1	1,239
To what extent can an older OS be used safely under certain conditions? bcsm	11-04-2021 01:46 PM by max.b	8	884
VPN Joelleisfedupwithlinux	11-04-2021 09:38 AM by wpeckham	11	1,007
Browser with Proxy - how does it work Christopher Wylie	11-04-2021 08:49 AM by sundialsvcs	5	2,364
Out of the clouds Allewyn	11-03-2021 11:51 PM by ondoho	13	1,055
php ssh2 auth failure duplicates pam faillock count anctop	11-03-2021 06:51 AM by anctop	0	864
remnux-inetsim help sniper8752	10-31-2021 05:08 PM by michaelk	3	1,459
Launch a chromium-based browser inside a su BudiKusasi	10-26-2021 08:56 PM by frankbell	5	702
what are the advantage of using keepass for important pw and bitwarder free for the non important sites? questionsyes	10-25-2021 11:19 PM by ondoho	12	997
i there a use for key file if i use a yubikey slot to 2af questionsyes	10-25-2021 10:02 PM by Turbocapitalist	8	893
Helping to clear SYNC-OUT connections for certain IPs dr.x	10-25-2021 07:55 PM by dr.x	0	840
How can I instruct Tripwire to detect files modified by particular user(s)? RDarkfire	10-25-2021 09:43 AM by wpeckham	1	831
Firewall blocking outbound traffic, have I been compromised? PsychoHermit	10-19-2021 01:24 AM by ondoho	3	1,036
Outbound firewall ports PsychoHermit	10-18-2021 05:48 PM by TB0ne	1	669
where should i store database questionsyes	10-18-2021 01:48 PM by sundialsvcs	5	844
what does keyfile vs YUBIKEY5 challenge response does? how do hey differ questionsyes	10-18-2021 02:35 AM by ondoho	1	658
How can someone spoof a MAC address? lucmove	10-17-2021 04:08 AM by ondoho	8	933
how to make a smooth transition from paper and chrome memory to keepass questionsyes	10-17-2021 02:13 AM by ondoho	4	677
[SOLVED] Open VPN Software poncedeleon	10-15-2021 08:23 PM by sundialsvcs	13	745
the never-ending story of spam qrange	10-13-2021 01:02 PM by z80	3	1,044
Automatic sites logoff problem across linuxes on one PC BudiKusasi	10-12-2021 03:57 AM by lvm_	2	574
avoid downloading impaired large size data BudiKusasi	10-11-2021 12:09 PM by dugan	4	574
Good VPN ( 1 2 ) tex1171	10-08-2021 07:10 AM by Aeterna	26	2,783
Is there better security using multiple browsers? ( 1 2 ) JASlinux	10-08-2021 12:11 AM by pan64	16	1,351
httpd -v Permission denied with selinux jeffrosquad	10-07-2021 04:34 PM by shruggy	1	1,341
Microsoft Azure Ubuntu VM ... changed IsaacKuo	10-03-2021 07:58 PM by IsaacKuo	1	667
[SOLVED] full access to mounted folder from any user/computer in the network 90okm	09-30-2021 01:42 PM by 90okm	2	856
My 'iptables' rules change by itself and add some ip-addresses hkjz	09-28-2021 10:39 AM by hkjz	5	1,015
selinux on fedora: Italian terrible translation ivnit	09-23-2021 08:54 AM by sundialsvcs	4	1,051
How do browsers read other browsers' bookmarks? JASlinux	09-22-2021 08:09 AM by TB0ne	4	775
How to get rid of RAT ( 1 2 3 ) whois1230	09-21-2021 05:13 PM by dugan	39	2,878
Ubuntu update behind firewall - URL + ports B612	09-14-2021 09:20 AM by B612	4	6,651
Does TENS have a firewall? Tecolote	09-12-2021 10:33 PM by Tecolote	4	879
File Recovery from Corrupt ecryptfs Drive jritts	09-12-2021 01:47 PM by ondoho	5	949
[SOLVED] encrypted folders windows mtdew3q	09-10-2021 10:15 PM by mtdew3q	1	821
Chopping up PKCS7 boydhako	09-09-2021 06:34 AM by maw_walker	1	767

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