Linux - Security Forum

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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: 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	16,441
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	3,631
Sticky: More Alerts Alert (TA14-017A) UDP-Based Amplification Attacks (Revised 12 Apr 2016) tronayne	04-16-2016 05:45 PM by tronayne	0	20,292
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	8,431
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	208,234
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	193,105
[SOLVED] Customization (more details) of passwd output command (via libpam-cracklib) during user account password change l0f4r0	Today 01:59 PM by sgrlscz	8	313
[SOLVED] Error opening Display (xhost) procfs	Today 03:54 AM by procfs	6	389
Linux ACL odd output mr.aghazade	Yesterday 08:47 AM by scasey	3	197
[SOLVED] How to avoid permissions problems (newb) jones5	Yesterday 07:11 AM by TB0ne	13	397
Is there any software that will remove important directories if I do not use my OS for a set period?( newb) jones5	Yesterday 06:29 AM by Geist	6	274
Booting in insecure mode - how to secure it again? mgketteridge	07-17-2019 08:06 AM by mgketteridge	2	195
restrict sudo mv access to specific directory awreneau	07-16-2019 11:34 AM by awreneau	3	245
PAM & SUID bit on /usr/bin/passwd ("Authentication Token Manipulation Error") l0f4r0	07-14-2019 05:46 PM by ehartman	3	323
Permissions Issues -- 774 ( 1 2 ) BW-userx	07-13-2019 09:35 PM by Turbocapitalist	29	580
router, tor, i2p and iptables FOSSilized_Daemon	07-13-2019 07:13 PM by scheidel21	2	334
[SOLVED] SELinux sandbox problem with GUI app _alex_	07-12-2019 02:04 PM by _alex_	4	272
Encryption? - How to secure a setup and bash scripts. ( 1 2 ) n0rthst4r	07-12-2019 06:29 AM by wpeckham	15	488
Is fail2ban useful on servers which only use SSH keys? Mark_667	07-12-2019 06:18 AM by wpeckham	4	316
Which tools are you using for Linux server security? Tal XpoLog	07-09-2019 08:15 AM by TB0ne	3	236
MDS Zombieload protection on Ubuntu vincix	07-09-2019 05:12 AM by vincix	2	670
Why crash certbot-auto after creating virtual environment ? fussel55	07-09-2019 12:33 AM by bathory	1	230
Content Security Header? drillsar	07-08-2019 07:26 PM by berndbausch	1	248
Firefox is unsafe? Slackware_fan_Fred	07-05-2019 08:13 PM by ntubski	10	462
Keep getting permission denied for nginx server on Centos 7 newbie14	07-05-2019 06:01 PM by BarryQualp	4	528
Orbot for Linux Mint seenab	07-04-2019 06:05 PM by battlestationX	9	391
DDOS Deflate ov4n	07-04-2019 03:50 AM by TenTenths	3	317
How pam authentication works with ssh keys ? paraggupta1989	07-03-2019 11:58 PM by Turbocapitalist	3	315
Nginx setting to block robots and proxy not working newbie14	07-01-2019 12:54 PM by newbie14	12	412
/etc/shadow file has been modified MALDATA	07-01-2019 09:42 AM by ehartman	9	431
Best VPN 2019 ( 1 2 ) carlito386	07-01-2019 04:23 AM by michaelxxl	27	1,176
How to remotely backup and administer over the net without compromising security? ( 1 2 ) Doug Hutcheson	06-30-2019 09:16 AM by TB0ne	22	550
[SOLVED] /etc/hosts block lists FOSSilized_Daemon	06-30-2019 02:48 AM by ondoho	5	372
Allow specific command to run without password Domarius	06-29-2019 04:05 PM by Domarius	3	298
[SOLVED] Weird netstat output ( 1 2 ) jazzy_mood	06-29-2019 01:12 PM by jazzy_mood	22	1,015
Info please actinide	06-28-2019 04:34 AM by JJJCR	3	316
detecting rootkits Debian w/ XFCE desktop armchairrambo	06-22-2019 06:36 AM by moxieman99	2	401
[SOLVED] Could you advise some useful tools for penetration testing? ( 1 2 ) RyanTmps	06-18-2019 03:32 PM by sevendogsbsd	16	654
[SOLVED] command not allowed TTY=unknown wat	06-18-2019 06:11 AM by hazel	2	356
LXDM/LXDE Logging Bad Usernames chrisr710	06-15-2019 06:45 PM by chrisr710	0	460
Allow only traffic from Whonix-Gateway cerber	06-14-2019 09:45 PM by cerber	0	535
[SOLVED] I changed the root password, but the password for software updates is still the old one triplemaya	06-13-2019 07:33 PM by evo2	4	429
which one is executed first ip_forward=1 or iptables FORWARD Drop abd_bela	06-13-2019 04:10 PM by vincix	2	369
Web Browser privacy ( 1 2 3 4 5 ) actinide	06-11-2019 03:18 PM by RickDeckard	62	1,810
What to do with old/expired SSL Cert(s)? Latitude	06-09-2019 06:32 PM by RickDeckard	2	398
Ansible Unlock Accounts elalexluna83	06-09-2019 04:31 PM by vincix	4	440
Why I can not see "selinux" module with "lsmod" command? -Snake-	06-09-2019 02:50 AM by -Snake-	3	373
LUKS Encryption is slow after moving disk to an older computer upnort	06-05-2019 12:23 PM by upnort	4	425
Connections (secure-log) Begin shows phpmyadmin user denied newbie14	06-04-2019 10:04 AM by newbie14	9	397
gpg / gpg-agent -- Can't connect to /root/.gnupg/S.gpg-agent jrtayloriv	06-03-2019 10:06 AM by MensaWater	9	120,700
First time SSH login not asking for password and logging in and creating home directories. witchkinkofangmar	06-03-2019 09:57 AM by witchkinkofangmar	4	507
Nginx and modsecurity logs not appearing in daily logwatch output. newbie14	06-02-2019 11:23 PM by newbie14	8	382
[SOLVED] IPTABLES log to file any input traffic mackowiakp	05-31-2019 02:23 PM by astrogeek	9	520
[SOLVED] Alpine on a Laptop FOSSilized_Daemon	05-28-2019 03:21 AM by jsbjsb001	11	711
Fail2ban not picking settings newbie14	05-25-2019 12:07 PM by newbie14	13	617
How to prevent polkit and authentication failure further ( 1 2 ) newbie14	05-25-2019 11:16 AM by newbie14	20	763

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