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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	30,784
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	40,761
Sticky: Alert (TA16-250A) The Increasing Threat to Network Infrastructure Devices and Recommended Mitigations tronayne	09-07-2016 06:25 AM by tronayne	0	13,331
Sticky: The OWASP Top 10 for 2013 unSpawn	06-15-2013 05:42 AM by unSpawn	0	18,088
Sticky: Security references unSpawn	02-25-2006 01:04 AM by unSpawn	6	242,141
Sticky: Failed SSH login attempts ( 1 2 3 ) Capt_Caveman	01-03-2006 03:22 PM by unSpawn	38	227,919
Force all internet traffic through tun0 (Vpn Interface) dschuett	08-10-2011 12:24 AM by win32sux	2	6,666
How to setup SFTP chroot jail for some particular user. jeesun	08-09-2011 10:58 PM by anomie	1	3,260
VSFTPD - restrict user access? v00d00101	08-09-2011 02:35 PM by Joshua5526	2	8,831
Showing passwords for failed login attempts Weinie	08-09-2011 12:03 PM by Weinie	4	1,021
[SOLVED] iptables NAT and DROP question ( 1 2 ) raevin	08-08-2011 11:07 AM by corp769	24	6,551
What to do with found Malware? lezazouz	08-07-2011 07:34 AM by tronayne	5	1,158
[SOLVED] firewall script not getting effective mahesh.salunkhe	08-06-2011 12:09 PM by mahesh.salunkhe	5	829
CentOS - Firewall - Preserving Source IP Address (DDoS) surgeon	08-05-2011 02:31 PM by Noway2	4	1,913
Difference between Dansguardian and SquidGuard according to these issues. donaldcr	08-04-2011 10:11 PM by win32sux	1	3,603
very odd chkrootkit behavior Cultist	08-04-2011 07:36 PM by corp769	12	1,521
[SOLVED] using a bpf filter to control the amount of alerts I get in snort. mhollis	08-04-2011 01:00 PM by unixfool	8	20,728
non-English post about CentOS router justicier25	08-04-2011 09:55 AM by win32sux	1	653
[SOLVED] more than one uid 0 - centOS/Plesk 10.x ( 1 2 ) micxz	08-04-2011 07:41 AM by Noway2	28	5,741
php.cmdshell.cih.210 -- how serious? ssri06	08-04-2011 06:04 AM by ssri06	2	3,965
[SOLVED] Integrating PAM into SSH chesschi	08-04-2011 03:12 AM by chesschi	2	1,693
Block user based on ip Koshi	08-03-2011 07:45 AM by acid_kewpie	1	699
sudoers Cmnd_Alias usage tmy	08-03-2011 06:02 AM by tmy	9	6,272
ACL is mandatory option in BIND? Please read this post with patience :-) anishkumarv	08-01-2011 08:53 PM by micxz	1	984
[SOLVED] Is it neccesary 137,138,139 for this ? loureed4	08-01-2011 06:00 AM by loureed4	9	1,554
Linux Based Firewall & Flood Blocking nishith	08-01-2011 05:59 AM by salasi	1	1,145
[SOLVED] Segfault in dirname and su murray42	08-01-2011 01:20 AM by unSpawn	12	1,717
[SOLVED] Prevent subdirectory creation while allowing file creation bweddell	07-31-2011 08:54 PM by chrism01	5	1,926
LXC versus KVM-Qemu- which is more secure against jail breaks/exploits? dman777	07-31-2011 10:44 AM by grzesiek	1	3,541
What are the Security Methods We can Follow to avoid DOS attacks..!! anishkumarv	07-30-2011 10:02 AM by win32sux	3	1,144
FTP publishing, need help configuring iptables in passive mode in non-standard port vdeschamps	07-30-2011 03:11 AM by lithos	9	6,150
System deactive all users' xscreensaver ssslackw	07-29-2011 12:43 PM by tinyTux	1	1,016
storing a password in an environment variable irey	07-29-2011 12:35 PM by devnull10	7	30,814
[SOLVED] Is It possible to Hide my Server Details? anishkumarv	07-29-2011 08:12 AM by anishkumarv	2	815
OpenSSL error : SSL_BYTE_TO_CIPHER_LIST Cracker-Barrel	07-28-2011 04:38 PM by Cracker-Barrel	0	3,220
Isolate VM with it's own Ethernet card dman777	07-28-2011 09:49 AM by win32sux	1	1,123
newrole command not found in redhat 5 rahulchandrak	07-26-2011 05:55 PM by knudfl	2	4,166
Using sudoers to enable temporary access for contractor caiblack	07-26-2011 03:30 PM by MensaWater	6	7,443
An iptable doubt, they are not the same sentence? loureed4	07-26-2011 11:25 AM by loureed4	9	1,018
fire fox syedali	07-26-2011 10:38 AM by acid_kewpie	1	825
DIACAP Ports, Protocols, and Services Management Abunai	07-25-2011 07:44 PM by Abunai	0	2,424
credit card hacked ksmatthews	07-25-2011 02:08 PM by Noway2	10	1,670
How long does a DISA UNIX SRR script take to run? e.g. "nohup ./Start-SRR &" MythicDark	07-25-2011 01:58 PM by aj203355	8	12,141
Account in /etc/passwd but not /etc/shadow jeriryan	07-25-2011 09:05 AM by anomie	4	12,955
[SOLVED] Anyone familiar with samhain on Debian/Ubuntu? sneakyimp	07-24-2011 05:59 PM by sneakyimp	4	6,222
Steps for implementing SECURE postfix,dovecot with squirrel mail reply.prak	07-23-2011 09:53 PM by win32sux	1	1,565
Can a virus infected Windows VM guest harm the slackware host? vivanguarda	07-23-2011 05:28 PM by Tinkster	3	1,506
Prevent programs from creating users within a specific UID range martindl	07-22-2011 09:07 PM by martindl	2	1,225
SSH to Amazon EC2 Arlc	07-22-2011 07:41 PM by sneakyimp	3	20,057
simple question regarding arp poisoning on a wlan gettons1980	07-22-2011 11:45 AM by gettons1980	7	1,499
[SOLVED] Change displayed message in pam_cracklib? theillien	07-22-2011 11:24 AM by theillien	4	1,256
[SOLVED] Securing & Hardening Linux Web Server [Tutorial] surgeonix	07-22-2011 09:41 AM by win32sux	1	1,524
openssl - no more passphrase-less keys! draeath	07-21-2011 10:39 PM by (=AA=)	1	25,440
[SOLVED] Idle ssh session not disconnecting theillien	07-21-2011 10:34 AM by theillien	6	4,041
strange nameserver logins from my lappy to lan hosts slugman	07-21-2011 09:24 AM by Noway2	12	2,876
Is it more secure to use SSL for connecing to localhost? teamanx	07-21-2011 05:26 AM by ButterflyMelissa	1	1,766

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