ConfigServer Security & Firewall

learn more… | top users | synonyms

0
votes
0answers
37 views

How to stop specific LFD emails

I am running CSF and LFD on a number of Centos servers - whilst it is a great product, I am getting frustrated with controlling the flow of (unnecessary) emails. For example, I use rsync to replicate ...
0
votes
1answer
32 views

How does CT_LIMIT (the csf firewall setting) work?

I've been wondering if the csf firewall counts the connections for the last CT_INTERVAL seconds and then compares them to the CT_LIMIT value, or it just counts the current (at the moment) connections ...
0
votes
0answers
42 views

Apache mod-security - Deny access from IP addresses listed in a blacklist file

I want to deny access from IP addresses listed in a blacklist file (not realy matters, but the file is /etc/csf/csf.deny). This is my custom rule (at the moment..): SecRule REQUEST_URI ...
0
votes
0answers
38 views

Can not block countries in CSF firewall

I have CSF firewall installed + LFD. I have blocked several countries in csf.conf file. Restarted CSF/LFD. CC_DENY = "CN,BR,CA,HK,TW,RO,RU,UA,MD,KZ,TH" I just checked Nginx logfile and found the ...
0
votes
2answers
119 views

Haproxy logging doesn't work. Does that have anything to do with csf?

Does Haproxy log every time a connection is made? I have followed instructions from other threads to set up logging via rsyslogd. Even though the files are created (haproxy.log,haproxy-info.log and ...
1
vote
0answers
214 views

CSF+LFD not blocking brute force on xmlrpc.php on Wordpress site

I have just installed csf+lfd on my rackspace cloud server (a vanilla LAMP stack running centos 6.7). I only tweaked a couple of settings in the default csf.conf file: the ports allowed in TCP_IN and ...
0
votes
0answers
67 views

lfd login alert except one user/IP

I am using csf/lfd. I whould like to receive ssh login alert except for one user/or IP. I used LF_SSH_EMAIL_ALERT but can not find any parameter to exclude user. the goal is disabling lfd login alter ...
2
votes
1answer
298 views

How to block all IPs in CSF except few static IPs?

The title is telling I guess. I'm wondering how to block ALL IPs in csf.deny except few trusted IPs? I've googled but could not find the answer.
0
votes
0answers
20 views

CSF ignore list skips some ignore exclusions

I have try to prevent sending Suspicious File Alert emails which contain: File: /tmp/netatop-0.5/netatop.init Reason: Script, starts with #! File: /tmp/netatop-0.5/mkversion Reason: Script, ...
0
votes
1answer
87 views

How to block all traffic which is headed to a particular domain

I have recently added an IP address to my VPS. The problem is that the previous owner has abandoned the domain name with its nameservers set on this IP. Although any access to this domain is denied by ...
0
votes
0answers
198 views

exim queue notification if a domain is sending more than x number of emails

I am running Exim as an MTA. I have also implemented a Per hour Per domain email Limit. Still I see that my IP reputation goes bad if a spammer sends more than x amount of emails in 24 hours or so. I ...
-5
votes
1answer
80 views

I cannot block an IP [closed]

I have a redirect rule on my CSF like the below; 17.1.1.13|80|27.5.5.22|80|tcp 17.1.1.13 is my firewall(csf) and 27.5.5.22 is my web server address. So everybody access my web site through the ...
0
votes
1answer
211 views

Can't connect to Ubuntu VPS via SSH,SFTP

When I try to login to my VPS using SSH and SFTP it's not connect to the server. Then I power off and power on the VPS by the VPS provider control panel (digital ocean). Once it boot up, first few ...
0
votes
1answer
144 views

How do I use CSF to redirect domain requests to a port?

I have a server setup that uses two different webservers with different subdomains. Right now the servers listen on different ports (80 & 4000) So users don't have to put in :4000 I'd like to ...
0
votes
1answer
275 views

CSF not adding IPs to deny file as a cron during high loads

I'm running a cron every minute to thwart brute-force attacks. awk '{print $2}' < ipkill.txt | while read ip; do #query geographical info IP address curl -o country.txt ipinfo.io/$ip ...
0
votes
1answer
99 views

IPTables Rules Being Loaded From Somewhere

I'm having troubles connecting (meaning I can't connect to any IP or port) to my server and it appears that the problem was to do with CSF. I uninstalled CSF (by running /etc/csf/uninstall.sh) and ...
0
votes
1answer
194 views

CSF Update resets IPTables rules

This is with CentOS 6. On one of my servers, periodically all IPTables rules are simply dropped and all connections start being blocked. It happens fairly randomly once every few days. I have a script ...
0
votes
0answers
262 views

CSF does not open port

I'm having a Ubuntu 14.04 server which has a TomCat installation listening on port 8080. I installed CSF today. Following is netstat -tulpn tcp6 0 0 :::8080 :::* ...
-3
votes
1answer
884 views

CSF *Port Scan* detected - shared hosting [closed]

We modified a few options in ConfigServer Firewall configuraion. Ever since the CSF blocking a lot of IP address. Following print sreen: http://oi60.tinypic.com/kdlnh3.jpg What can I modify thereto ...
0
votes
1answer
652 views

Filezilla can not connect my new ftp port on centos 6.6

I have a webserver running on Centos 6.6. Recently Config Server Security Firewall send me over 150 email about some malicious bots trying to guess my clients ftp users and passwords. I hate ...
0
votes
1answer
402 views

Unblock All Ports in CSF? [closed]

I have CSF installed on a cPanel server and know that I believe that I can unblock ports specifically for outgoing connections in the /etc/csf/csf.conf file. It looks like this line can just be ...
1
vote
1answer
483 views

Suspicious Linux binary file in /tmp/ - Munin?

I have a CENTOS 6.6 x86_64 server running ConfigServer Firewall (installed by us) and Munin (installed by the datacentre). CSF has recently (and for no apparent reason) started sending us warnings, ...
0
votes
1answer
113 views

CentOS - how to tell what conf file CSF (firewall) is using? csf.conf then restart not updating

in /etc/csf/csf.conf the following is setup LF_CPANEL = "5" LF_CPANEL_PERM = "3600" restarting csf by doing the following csf -r does not seem to have an impact on the above attributes. ...
1
vote
0answers
66 views

VPS Unknown Read/Write [closed]

I had an lfd email alert - I have installed CSF - today revealing that my server (Centos 6.6) has been using a lot of server resources for 5 minutes. I checked my VPS graphs and noticed that my ...
1
vote
2answers
75 views

Can't block spammy IP

I'm being attacked by 37.59.4.76. It's sending me a great amount of data, which is destroying my dataplan. I've added the iptables Chain num pkts bytes target prot opt in out ...
1
vote
0answers
50 views

CSF Configuration Ignore NodeJS for Excessive Time

I am getting a lot of these: Excessive resource usage: *account* (9580 (Parent PID:9574)) Time: Sat Oct 18 15:20:00 2014 -0400 Account: *account* Resource: Process Time Exceeded: ...
0
votes
1answer
537 views

NUMIPTENT is too low to add 5333 rules (CSF firewall error)

The VPS iptables rule limit (numiptent) is too low to add 5333 rules (19469/24000) CSF stopped working spontaneously today. Saying it can't start because it can't add 5333 rules to an apparent ...
1
vote
1answer
1k views

csf Integrated User Interface not working

I've installed CSF on ubuntu 14.04 using their official install guide. After disabling UFW with the following command: sudo ufw disable then I have modified csf.conf with the following values: ...
0
votes
1answer
68 views

cannot send emails to other Web servers

I'm trying to limit my server's open ports in CSF. The IPv4 port settings include: # Allow incoming TCP ports TCP_IN = "22,25,53,80,110,143,443,587,3654,53343” # Allow outgoing TCP ports TCP_OUT = ...
0
votes
2answers
2k views

lots of UDP_IN Blocked errors

Since I have reinstalled my OS, I'm getting lots of UDP_IN Blocked errors in my messages log. Can anyone kindly explain what the error say exactly and what I can do to get rid of this error. Aug 8 ...
1
vote
1answer
242 views

SSH connection gets dropped when attempting to deploy site using rocketeer

I'm trying to deploy a Laravel site to a development server (cPanel based) using Rocketeer. I am having a problem maintaining the SSH connection, and the server is dropping the connection after ...
0
votes
2answers
230 views

Openning a port in my CentOS server [closed]

I'm trying to open a port in my CentOS server... I tried using iptables, adding the "-A INPUT -p udp -m udp --dport portnum -j ACCEPT" and didn't work. I tried installing CSF, adding the ports and ...
0
votes
1answer
1k views

csf lfd denied by desktop because of mod_security

I have a WHM/Cpanel server with CSF/LFD installed and mod_security enabled. I used to login to WHM/cpanel from one of my local windows box through a linux (Centos 5)NAT gateway(with a public IP ...
1
vote
0answers
1k views

CSF LFD suspicious process under user apache

I think my server got DOS'ed via HTTP(port 80). When I checked apache access log, it showed that specific IPs requested /GET/HTTP1.1 more than 150 times in a minute. And I've been trying to limit ...
1
vote
1answer
591 views

CSF cc_deny is not working

I tried to block a country in CSF Firewall I followed this post http://www.2daygeek.com/how-to-block-a-country-using-csf-firewall/ to block ip from China cc_deny ="CN" While I execute csf -r I ...
1
vote
1answer
392 views

CSF Blocking IP on Fail POP3 and cPanel [closed]

I have a VPS with cPanel and i am running around 400+ email accounts under a Office Network, I don't have STATIC IP but i am facing issue when any 1 of employee forget the password and try to access ...
0
votes
1answer
319 views

Cannot close Port 25 after installing postfix

Before installing logwatch (which installs postfix) on Ubuntu 12.04, the port 25 is blocked by iptables/csf PORT STATE SERVICE 25/tcp filtered smtp After installing logwatch (which installs ...
1
vote
3answers
1k views

csf stop emails related to Process Tracking

I have enabled LSF with CSF since I would like to receive some informations but I am being bombed by the CSF with similar emails: Subject: lfd on [Hostname]: Excessive resource usage: www-data ...
0
votes
1answer
122 views

How to block/ban clients that try to access some paths / urls?

Some spambots hammer my server with nonexisting paths like /user/pass?=asdfdasfas How could I block any access to /user/pass?=* ? Is there a better tool than iptables or csf for catching such crap?
0
votes
1answer
4k views

Port forwarding through OpenVPN server

Here's my scenario: Remote OpenVPN server v2.3.2, 1 public IP, CentOS 6.4, 2.6.32-042stab079.6 Tunnelblick (OpenVPN client) What I want to do is route all the client traffic through the VPN - and ...
1
vote
1answer
501 views

Proxmox 31 + KVM routing + IP subnet + csf

We have proxmox 3.1 server in netzner with routuing network and IP subnet block. We want to implement csf firewall without interfering the traffic of the KVM VMs, what would be the easiest way? We ...
0
votes
1answer
564 views

ConfigServer CSF and iptables config

I'm aware there is a /etc/sysconfig/iptables file, with rules for iptables (and what's the effective difference with /etc/sysconfig/iptables-config?). I installed CSF & LFD. You can configure ...
0
votes
0answers
206 views

Extract IPs from exim_rejectlog with particular error then automatically add IP to a csf or iptable

Is there a command to do this in linux? For example extract IPs from exim_rejectlog with particular error dropped: too many syntax or protocol errors Count how many times an IP is listed and if it ...
0
votes
1answer
298 views

Memcached ports and CSF

I've got a small / medium sized VPS powered by WHM and running a few personal websites alongside a Magento powered web-store. Not being a real expert when it comes to server configuration details I've ...
0
votes
1answer
1k views

Hacking attempt detected, Can we block user by PC-Name

Recently we notied that hackers are trying to hack our server, we have IP blocking softwares installed on our server but the thing is that, hacker is using dynamic ip addresses to try again and ...
0
votes
1answer
904 views

Ubuntu Server DDoS protection [duplicate]

I've seen many articles on DDoS protection, but none work. I need protection for a socket server i'm running on the server. It's running on port 9876 and it's for a flash-based game. when it gets ...
0
votes
1answer
411 views

Open torrent ports in csf

I use aria2 on my office with debian linux and aria2web to download some torrents on that. in brief it's a torrent client. but if i turn on csf, aria2c can't do that. which config should i do for csf ...
0
votes
1answer
81 views

How to block access from all hosting services? (like gutenberg.org) [closed]

gutenberg.org blocks access to all hosting services as per http://www.gutenberg.org/error403.php How to achieve this? Is there a list of hosting ips? Also, would these be added to CSF?
0
votes
1answer
1k views

IPTABLES nat maintaining source IP address with CSF

We have been using CSF on a virtualized (OpenVZ) environment successfully for a while combining venet and bridged interfaces so we can use public IPs + local addressed virtual systems. Kernel IP ...
3
votes
1answer
2k views

How to white-list specific PHP script process in CSF?

I repeatedly receive a "Suspicious Process" notice from lfd. I'm 100% positive that the PHP script triggering this warning is safe. I wrote it myself and it makes some cross server calls that must ...