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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	30,799
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	40,834
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,350
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,101
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,242
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	228,048
Good VPN ( 1 2 ) tex1171	10-08-2021 07:10 AM by Aeterna	26	2,790
Is there better security using multiple browsers? ( 1 2 ) JASlinux	10-08-2021 12:11 AM by pan64	16	1,362
httpd -v Permission denied with selinux jeffrosquad	10-07-2021 04:34 PM by shruggy	1	1,381
Microsoft Azure Ubuntu VM ... changed IsaacKuo	10-03-2021 07:58 PM by IsaacKuo	1	674
[SOLVED] full access to mounted folder from any user/computer in the network 90okm	09-30-2021 01:42 PM by 90okm	2	862
My 'iptables' rules change by itself and add some ip-addresses hkjz	09-28-2021 10:39 AM by hkjz	5	1,042
selinux on fedora: Italian terrible translation ivnit	09-23-2021 08:54 AM by sundialsvcs	4	1,053
How do browsers read other browsers' bookmarks? JASlinux	09-22-2021 08:09 AM by TB0ne	4	785
How to get rid of RAT ( 1 2 3 ) whois1230	09-21-2021 05:13 PM by dugan	39	2,954
Ubuntu update behind firewall - URL + ports B612	09-14-2021 09:20 AM by B612	4	6,902
Does TENS have a firewall? Tecolote	09-12-2021 10:33 PM by Tecolote	4	883
File Recovery from Corrupt ecryptfs Drive jritts	09-12-2021 01:47 PM by ondoho	5	964
[SOLVED] encrypted folders windows mtdew3q	09-10-2021 10:15 PM by mtdew3q	1	824
Chopping up PKCS7 boydhako	09-09-2021 06:34 AM by maw_walker	1	774
encfs and OpenSSL encryption not backwards compatible? JASlinux	09-06-2021 05:50 PM by TB0ne	11	1,320
What's a simple and portable way to encrypt a .tar.gz? TheJooomes	09-02-2021 12:26 PM by dugan	8	1,624
How to implement HMAC-SHA2-512 Ermiyas	09-01-2021 02:59 AM by knudfl	1	790
SSH ruined ( 1 2 ) hatfani	08-28-2021 07:01 AM by Turbocapitalist	17	1,332
[SOLVED] gnupgp post quantum keys mtdew3q	08-27-2021 06:41 AM by gouttegd	2	741
Editing encrypted files without temporary files srithon	08-26-2021 05:44 PM by srithon	0	375
[SOLVED] invalid user ssh into my ubuntu server constantly ? ( 1 2 ) andrewysk	08-25-2021 12:46 AM by ondoho	27	10,162
Accessing containers on Home Server through VPS blocks them from WAN (iptables) anon199	08-22-2021 04:45 PM by anon199	0	514
[SOLVED] Strange places in nft log OlgaM	08-21-2021 08:21 AM by OlgaM	4	1,022
Limiting intra-LAN traffic and messages in /var/syslog RDK_RasPi	08-19-2021 06:18 AM by RDK_RasPi	5	988
Restrict an account hatfani	08-17-2021 09:01 AM by hatfani	7	876
Foreign Security Principals of Active Directory not showing in Linux nodes rahul.buragohain	08-14-2021 02:46 PM by TB0ne	1	1,209
Do rescue disks remove Linux malware? whois1230	08-11-2021 02:06 PM by wpeckham	8	949
vulnerability/CVE Scanner xray55	08-11-2021 03:10 AM by TenTenths	1	683
Predetermined State Computing in Linux shawn2021w	08-10-2021 07:45 AM by ntubski	4	680
What controls the file mode of the audit log? bradvan	08-10-2021 03:33 AM by bradvan	6	1,056
auth.log shows sshd login attempt from invalid port - why? how? gtalbott	08-05-2021 12:31 PM by gtalbott	5	1,817
iptables Blocking Requested Domain for Bind jeremywebdev	08-02-2021 09:56 AM by smallpond	1	788
Nord VPN/ Fedora timl	08-01-2021 03:40 PM by TB0ne	1	781
[SOLVED] How can I stop network interface without sudo? SA111	07-27-2021 01:50 PM by SA111	4	659
If there are no services listening on any port & if Nftables is enabled can I still get hacked ? hifi100	07-27-2021 12:02 PM by maw_walker	13	825
openssl verify throwing unexpected error 24. zaxonus	07-24-2021 08:13 AM by JockVSJock	6	841
Linux security product with its own kernel module - yes or no? juddy	07-23-2021 10:17 AM by jmccue	5	668
Noob question about being hacked ( 1 2 ) buckbuchanan	07-22-2021 10:21 AM by sundialsvcs	21	1,325
Scan port through iptables config, that blocks scans. michail nav	07-15-2021 11:34 AM by business_kid	1	777
[SOLVED] Downloaded Linux iso distro file with vulnerabilities hexaferrum	07-08-2021 11:41 AM by v00d00101	14	2,887
How to ensure a given port is open NotionCommotion	07-07-2021 03:23 PM by scasey	4	671
NTPv4 AES128CMAC authentication test procedure shamhserLinux	07-07-2021 08:08 AM by TB0ne	1	562
How to extract log files from a compromised distro liquidglass	07-07-2021 02:51 AM by ondoho	9	625
In UFW, how can I mitigate the danger of exposing needed port 53? liquidglass	07-07-2021 02:24 AM by ondoho	6	670
Why is my Opera VPN so much faster than Tor? JASlinux	07-06-2021 10:26 AM by sundialsvcs	11	1,268
[SOLVED] Policy Kit does not allow to restart a service, despite an adequate rule xavier8854	07-06-2021 06:38 AM by xavier8854	1	982
Help interpret firewalld log NotionCommotion	07-02-2021 08:50 AM by NotionCommotion	2	1,770
check remote connection is open or not lasec.staff	07-01-2021 11:23 AM by Trihexagonal	9	777
Firewall setup problem - newbie here, reading guides and learning. Linus_Newb	07-01-2021 11:12 AM by Trihexagonal	2	383
What is your opinion about DoH ? Do you use it ? hifi100	06-30-2021 08:08 AM by boughtonp	1	515

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