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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	30,776
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	40,725
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,323
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,082
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,078
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,847
Ubuntu security vs Linux Mint security? ( 1 2 ) Gregory.Opera	05-14-2019 06:37 PM by cynwulf	22	4,822
New server with cron entries error newbie14	05-13-2019 09:03 AM by TenTenths	6	2,259
login remote is not possible anymore rolandbro	05-12-2019 07:24 PM by berndbausch	2	558
Regarding to the LEACH security rakesh319	05-12-2019 05:40 PM by knudfl	4	680
dd for srubbing disk for text ( 1 2 ) Linux_Kidd	05-10-2019 12:48 AM by pan64	17	1,657
Strange IPs in my firewall log lucmove	05-09-2019 10:39 PM by astrogeek	8	768
Computer connecting to malicious IPs emerald1475	05-09-2019 08:16 PM by frankbell	3	850
vpn marius09	05-09-2019 09:19 AM by TenTenths	1	616
[SOLVED] SELinux issue while configuring rsyslog michael_hoang	05-06-2019 03:45 PM by michael_hoang	6	10,784
unable to execute cron from root user indraindrajit71	05-06-2019 07:18 AM by TB0ne	1	2,223
hacker wiping out git repositories for ransom hemlocktree	05-05-2019 08:53 AM by BW-userx	11	865
csf invalid chain webx99	05-04-2019 05:17 AM by unSpawn	3	1,472
what is the valid delimiters for hosts.allow? ultrakiasu	05-04-2019 04:58 AM by unSpawn	4	768
Rootkit Hunter tells me I have possible rootkits Chrislw324	05-04-2019 04:56 AM by unSpawn	9	3,407
multi factor authentication and hardware tokens schmi85	05-03-2019 02:50 AM by schmi85	3	710
Deleted pub & priv keys locally but can still login remote bulgin	04-27-2019 03:02 PM by smallpond	1	717
Keyrings... what's in ~/.local/share/keyrings/* ? lostinxlation	04-26-2019 11:10 AM by ondoho	8	4,563
Sudo and veracrypt calling IP addresses on password entry Frickymind	04-25-2019 04:29 PM by hydrurga	14	1,865
ip xfrm: same policy for multiple incoming SAs doesn't work cpillonel	04-25-2019 03:45 PM by cpillonel	0	1,861
A cluster of lab computers ssslackw	04-22-2019 05:06 AM by JJJCR	2	886
why can't i generate a new certificate with openssl? achouramira	04-18-2019 05:51 PM by tushar.gangwal	3	28,718
intended xfrm replay-window is not getting configured on kernel 4.9 suri.linux	04-18-2019 01:45 PM by suri.linux	0	1,565
Chkrootkit reports bindshell infected port 465 ( 1 2 ) Seniark	04-17-2019 12:38 AM by ondoho	22	5,263
Seeking Comments and Feedback on My Software Rajan218	04-16-2019 11:32 PM by young_jedi	4	486
Best way to filter/limit ARP packets on embedded Linux teusz	04-14-2019 08:17 PM by berndbausch	4	2,587
dont know if I'm hacked or not (newb) 3rdostridge	04-11-2019 01:32 AM by ondoho	3	2,334
Book/help one debugging SSL (CentOS 7 Apache openSSL) MikeS3	04-10-2019 05:02 PM by berndbausch	1	664
SSH Tweaks upnort	04-10-2019 11:51 AM by upnort	8	967
how to list all firewalld settings Winanjaya	04-09-2019 10:08 PM by JJJCR	4	666
firewalld port should be open but it isn't mjbradakis	04-09-2019 08:10 PM by ferrari	4	977
how to reset firewalld back to default factory Winanjaya	04-09-2019 07:22 PM by ferrari	2	23,139
[SOLVED] I fiddled with ssh and cannot start the service again on Ubuntu.... dsl_	04-09-2019 07:26 AM by dsl_	5	6,713
how to NAT (port forwarding) on CentOS 7 Firewalld Winanjaya	04-08-2019 06:31 AM by Winanjaya	3	4,527
Best command to make openvz container backup fanaticisas	04-06-2019 09:18 PM by wpeckham	4	877
[SOLVED] Custom filter to ban too many phpMyAdmin attempts Centos 6.x jeremywebdev	04-06-2019 08:02 PM by jeremywebdev	4	975
Dismount from the command line works but truecrypt GUI still thinks volume is mounted Ulysses_	04-06-2019 09:22 AM by hydrurga	1	609
Understanding SNORT SID 27968 : Win.Backdoor.Chopper WebShell Con Atmt allblue777	04-05-2019 06:44 PM by allblue777	0	2,698
problem with sftp after adding user to group vinmansbrew	04-01-2019 03:02 PM by vinmansbrew	8	1,769
[SOLVED] Changing all groups when renaming an account Turbocapitalist	04-01-2019 11:39 AM by Turbocapitalist	8	1,203
[SOLVED] CentOS 7 sending audit logs through rsyslogd bradvan	04-01-2019 07:14 AM by bradvan	3	4,467
TLS for HTTPS on LAN or Intranet? Turbocapitalist	03-31-2019 07:04 PM by tyler2016	14	2,123
Share Your Sudo Tips! That Random Guy	03-31-2019 05:31 PM by young_jedi	14	1,449
problem in my pendriver after installationtion parrot evandrobdea	03-30-2019 06:26 AM by rokytnji	1	573
Is it hacked my server?? poplinux	03-29-2019 06:26 AM by tyler2016	3	763
Is josepy a weak link in letsencrypt? slac-in-the-box	03-28-2019 01:25 PM by ondoho	5	1,219
Authentication ELK Dashboard yash1990	03-28-2019 10:29 AM by yash1990	3	2,952
nslcd dead but subsys locked vinmansbrew	03-27-2019 09:22 AM by vinmansbrew	4	2,347
[SOLVED] Cronjob: Could not authenticate PAM user ... Authentication failure (for root?!?) JZL240I-U	03-14-2019 01:05 PM by JZL240I-U	11	14,770
A way to auto-connect to your VPN at startup without an App Captain Brillo	03-14-2019 05:33 AM by markophillips	3	1,625
binutils! Can we fix this in an educational way? R03L	03-13-2019 12:18 PM by business_kid	2	853

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