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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	30,782
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	40,757
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,329
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,086
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,138
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,903
[SOLVED] encrypted folders windows mtdew3q	09-10-2021 10:15 PM by mtdew3q	1	823
Chopping up PKCS7 boydhako	09-09-2021 06:34 AM by maw_walker	1	770
encfs and OpenSSL encryption not backwards compatible? JASlinux	09-06-2021 05:50 PM by TB0ne	11	1,301
What's a simple and portable way to encrypt a .tar.gz? TheJooomes	09-02-2021 12:26 PM by dugan	8	1,585
How to implement HMAC-SHA2-512 Ermiyas	09-01-2021 02:59 AM by knudfl	1	784
SSH ruined ( 1 2 ) hatfani	08-28-2021 07:01 AM by Turbocapitalist	17	1,315
[SOLVED] gnupgp post quantum keys mtdew3q	08-27-2021 06:41 AM by gouttegd	2	738
Editing encrypted files without temporary files srithon	08-26-2021 05:44 PM by srithon	0	368
[SOLVED] invalid user ssh into my ubuntu server constantly ? ( 1 2 ) andrewysk	08-25-2021 12:46 AM by ondoho	27	9,744
Accessing containers on Home Server through VPS blocks them from WAN (iptables) anon199	08-22-2021 04:45 PM by anon199	0	511
[SOLVED] Strange places in nft log OlgaM	08-21-2021 08:21 AM by OlgaM	4	1,010
Limiting intra-LAN traffic and messages in /var/syslog RDK_RasPi	08-19-2021 06:18 AM by RDK_RasPi	5	985
Restrict an account hatfani	08-17-2021 09:01 AM by hatfani	7	873
Foreign Security Principals of Active Directory not showing in Linux nodes rahul.buragohain	08-14-2021 02:46 PM by TB0ne	1	1,186
Do rescue disks remove Linux malware? whois1230	08-11-2021 02:06 PM by wpeckham	8	943
vulnerability/CVE Scanner xray55	08-11-2021 03:10 AM by TenTenths	1	679
Predetermined State Computing in Linux shawn2021w	08-10-2021 07:45 AM by ntubski	4	678
What controls the file mode of the audit log? bradvan	08-10-2021 03:33 AM by bradvan	6	1,025
auth.log shows sshd login attempt from invalid port - why? how? gtalbott	08-05-2021 12:31 PM by gtalbott	5	1,782
iptables Blocking Requested Domain for Bind jeremywebdev	08-02-2021 09:56 AM by smallpond	1	783
Nord VPN/ Fedora timl	08-01-2021 03:40 PM by TB0ne	1	780
[SOLVED] How can I stop network interface without sudo? SA111	07-27-2021 01:50 PM by SA111	4	655
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	821
openssl verify throwing unexpected error 24. zaxonus	07-24-2021 08:13 AM by JockVSJock	6	833
Linux security product with its own kernel module - yes or no? juddy	07-23-2021 10:17 AM by jmccue	5	666
Noob question about being hacked ( 1 2 ) buckbuchanan	07-22-2021 10:21 AM by sundialsvcs	21	1,322
Scan port through iptables config, that blocks scans. michail nav	07-15-2021 11:34 AM by business_kid	1	770
[SOLVED] Downloaded Linux iso distro file with vulnerabilities hexaferrum	07-08-2021 11:41 AM by v00d00101	14	2,862
How to ensure a given port is open NotionCommotion	07-07-2021 03:23 PM by scasey	4	669
NTPv4 AES128CMAC authentication test procedure shamhserLinux	07-07-2021 08:08 AM by TB0ne	1	560
How to extract log files from a compromised distro liquidglass	07-07-2021 02:51 AM by ondoho	9	620
In UFW, how can I mitigate the danger of exposing needed port 53? liquidglass	07-07-2021 02:24 AM by ondoho	6	667
Why is my Opera VPN so much faster than Tor? JASlinux	07-06-2021 10:26 AM by sundialsvcs	11	1,261
[SOLVED] Policy Kit does not allow to restart a service, despite an adequate rule xavier8854	07-06-2021 06:38 AM by xavier8854	1	971
Help interpret firewalld log NotionCommotion	07-02-2021 08:50 AM by NotionCommotion	2	1,739
check remote connection is open or not lasec.staff	07-01-2021 11:23 AM by Trihexagonal	9	770
Firewall setup problem - newbie here, reading guides and learning. Linus_Newb	07-01-2021 11:12 AM by Trihexagonal	2	378
What is your opinion about DoH ? Do you use it ? hifi100	06-30-2021 08:08 AM by boughtonp	1	512
Does anyone know how to resolve missing kernel mitigation's? mstjohn1974	06-29-2021 08:27 AM by mstjohn1974	3	3,074
How can I hide my URI requests from a snoopy modem? lucmove	06-28-2021 01:54 PM by Linux_Kidd	6	861
[SOLVED] How do DarkSide do it? ( 1 2 3 4 5 ) business_kid	06-28-2021 07:54 AM by Trihexagonal	70	3,735
usb to ethernet adapter pingu_penguin	06-27-2021 07:00 AM by leclerc78	10	1,069
How would you script the temporary IP banning on Linux? ( 1 2 ) postcd	06-25-2021 02:27 PM by jefro	23	1,335
opasswd not update jong2ry	06-18-2021 07:48 AM by wpeckham	1	1,149
Pihole only shows 1 hour in the Total queries over last 24 hours- Solved tuxthegreat	06-16-2021 04:09 PM by boughtonp	1	715
[UFW BLOCK] in dmesg MilkTea	06-13-2021 02:50 AM by ondoho	5	2,852
Groups listed with 'id' are different SlowCoder	06-11-2021 12:35 AM by ondoho	5	574
Shellbags equivalent in Linux doddy	06-10-2021 05:59 AM by GazL	1	767
Higher priority for root processes fortea	06-03-2021 08:56 AM by sundialsvcs	7	791
[SOLVED] Mobile USB tethering & wifi hotspot security elaterite	06-02-2021 02:18 PM by elaterite	4	871

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