similar to: A little iptables help

I apologize if this has been asked and answered, but I googled and attempted things for several hours today without success. I have a freshly installed CentOS 7 system that I'd like to disable the firewall and all iptables rules. Basically the equivalent of doing iptables -F In a nutshell I've tried the following commands, in many different ways and orders, but when the system

I have a server that is running iptables. I'm trying to allow vsftpd in and have the following rules. I can connect to it, but when I try to do a listing it says "Entering Passive Mode" but doesn't do anything. Any suggestions? Thanks, James # define it -N FTP_INP -A INPUT -p tcp --syn --sport 1024: --dport 21 -m state --state NEW -j FTP_INP # rules -A FTP_INP -j ACCEPT #

Hi all, I've a CentOS box which as two NIC; this box is also a router for LAN subnet: ------------------------------------ | eth0 (external) 172.0.0.1 | | eth1 (internal) 192.168.1.1 | ------------------------------------ | LAN clients (192.168.1.2+) I want to allow http acces only for two LAN boxes; an only http access, which means that others protocols as smtp, pop3,

Hi, I have an DNAT ISSUE with PREROUTING. This is my setup. I have 2 firewalls running iptables. Pls asume 1.2.3.4/29 is the internet interace of FIRST firewall. 2.3.4.5/29 is the internet interface of SECOND firewall. it has DMZ zone. in that DMZ zone, mail server runnig @ 192.168.100.3 Now I want to DNAT port 25 of FISRT firewall ( i.e - its ip address - 1.2.3.4/29) to the internet ip

Hi.... Help me please!!! I am using Linux Redhat as router of the my network. I am to making NAT and firewall. In my iptables script, I need make 3 MARKs for the same packet, as following # It marks the packets that will go for link ADSL (I have 2 links - adsl 2Mb and ''dedicate link'' 256Mb ) # I am using ''ip rule / ip route'' to make this iptables

Hi i have a debian box working as a router.. it works quite well, now i want to give more than 1 ip.. is it possible to do it? some of them must be an open ip.. i mean.. all ports opened is it possible? how should i do it? Here is my nat.sh script just in case someone wants it.. (comments r in spanish.. and not right) Thanks in advance, #!/bin/sh echo "AthoS LaN Generando

Hello, I am trying to get LDAP running. So far, the server is running but I cannot connect to port 389 or the server using webmin or phpldapadmin. It could be my ISP has blocked this port but I'm not sure. I have tried to telnet to port 389 but it is refused. All other services run fine. I user the iptables ruleset found in the IP-Masquerade HowTo. Below is the ruleset I follow for

I have a server running on CentOS that sits being another firewall. I want to forward a certain ports to another server, but only for a handful of addresses. Can anyone assist with an example rule of this? For example, let's say I wanted requests from 24.83.77.24 and 63.47.50.16 on port 10001 to forward to internal server 192.168.1.15 All other requests for THAT port would be rejected or

Hi, I am running a ASTERISK BOX behind a firewall. It is at DMZ . Now I want to connect to my ASTERISK BOX from Internet. So I want to DNAT. How can I do it? Pls assume that ip address that connects to Internet on firewall is 1.2.3.4and is attached to eth0. And ASTERISK BOX is 192.168.101.23 Then, What is the rule (PREROUTING) for it? What is the port to DNAT? I think udp 5060. So I have

I have a server whit 2 interfaces of network, where eth0 is the interfaces connetc to internet and eth1 to the internal network. This server hace a Squid only, but i setting the iptables for protection to the server. Iptables run from script and in this script i setting the redirection for the other server in my internal network to port 80 and 443. I follow the diferent how to and many manual, but

I was looking at my maillog and it looks like someone is trying to get into my pop3 server. Dec 9 15:28:54 mailserver dovecot: pop3-login: Aborted login: user=<alexis>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 Dec 9 15:29:08 mailserver dovecot: pop3-login: Aborted login: user=<alfonso>, method=PLAIN, rip=::ffff:66.167.184.203, lip=::ffff:192.168.1.2 Dec 9

https://bugzilla.netfilter.org/show_bug.cgi?id=1422 Bug ID: 1422 Summary: iptables-nft fails to check / delete rules in raw table Product: iptables Version: 1.6.x Hardware: x86_64 OS: Debian GNU/Linux Status: NEW Severity: major Priority: P5 Component: iptables

Am 11.03.2018 um 11:53 schrieb Nicolas Kovacs <info at microlinux.fr>: > > I've experimented some more, and I have a partial success. Here, I'm > redirecting all HTTPS traffic *except* the one that goes to my bank: > > iptables -A PREROUTING -t nat -i $IFACE_LAN -p tcp ! -d > www.credit-cooperatif.coop --dport 443 -j REDIRECT --to-port 3129 > > This works

Hi, I have an existing iptables as follows:- # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -p

Hello list members, Finaly I''m here after a week of trying to subscribe to this list... pfew... Anyway... I have a rather strange problem with tc. I am trying to police the ingress traffic into my network using the iptables MARK feature (in mangle table, PREROUTING) but it seems that tc filters ignore this marks and they don''t work at all for me. Let me explain a bit more in

Hi, system info: ubuntu 7.04 (Host OS) samba 3.0.24 (installed with apt-get) vmware-server 6.0.1 windows XP (Guest OS) I was using the iptables script provided by iptablesrocks.org. It's been quite useful, but I ran into a problem when I tried to connect samba. Without any iptables rules, I have no problem when connecting host os(ubuntu samba server) from guest os Windows XP. I referenced

I am forwarding traffic on port 8080 to port 80 with following rule. # iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 8080 -j REDIRECT --to-port 80 # iptables-save However, I am unable to add it directly in /etc/sysconfig/iptables. I think it is used only for filter table and not nat table. So where do nat table rules go? Any help? - cs.

Good evening, on a CentOS 7 LAMP (not gateway) dedicated server I am using iptables-services with the following /etc/sysconfig/iptables: *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [294:35064] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -p icmp -m icmp --icmp-type any -j ACCEPT -A INPUT -p tcp -m state --state NEW -m tcp -m

Hi, I''m having issues with policing my incoming traffic by matching packet marks made by iptables. I''ve checked as many sites and guides as I can find, and I seem to be doing the exact same thing as they all are, but there''s still no success. As such, I was wondering if anyone can have a quick look to see if I''ve done anything obviously stupid? Essentially, I

Hi. I have two internet connections, the ADSL2+ is very very cheap (but fast 10mb) and I want to use the SHDSL (2mb) only for mail,ssh,http OUT and the ADSL2+ only for surfing. I all works fine if people specify the proxy in the browser, but in case like flash it of no use. Further if I can make the 80/443 traffic go through the proxy only, its an added bonus. If this can be done, fine. Bue I