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iptables dnat url

  • iptables DNAT from loopbackFebruary 26

    I'm trying to understand the limitations of using iptables DNAT with loopback addresses. Consider we have an application which can connect only to; the obvious solution to make server and client work on different nodes is to use NAT as foll

  • iptable DNAT poor performanceJanuary 9

    I have the following rule for PORT FORWARDING: [email protected]:~# iptables -t nat -S -P PREROUTING ACCEPT -P INPUT ACCEPT -P OUTPUT ACCEPT -P POSTROUTING ACCEPT -A PREROUTING -p udp -m udp --dport 1:1024 -j DNAT --to-destination -A PREROUTING

  • iptables dnat mapping to specific ipDecember 22

    I constructed a private net with two machine, both of them have two network interfaces this is the networking information: machine1: eth0 (private net) eth1 (Campus Network ip) machine2: eth0 (private net) eth2 10.82.

  • Iptables DNAT / only one urlJune 26

    I have a rule similar to this: iptables -t nat -I PREROUTING -p tcp --dport 80 -s -j DNAT --to-destination which redirects all http requests from 1.5 host to 1.2.. I want to make so it works only for one URL - to redirect o

  • IPtables: DNAT not workingFebruary 26

    In a CentOS server I have, I want to forward port 8080 to a third-party webserver. So I added this rule: iptables -t nat -A PREROUTING -p tcp --dport 8080 -j DNAT --to-destination thirdparty_server_ip:80 But it doesn't seem to work. In an effort to d

  • OpenBSD pf - implementing the equivalent of an iptables DNATJune 20

    Short version Server A (OpenBSD 4.7) connects to server B (Windows). IP of server B changes. Server A should be able to connect to server B to both the old and new IP. We cannot configure multiple IPs on server B. Long version We have an OpenBSD serv

  • iptables (DNAT) Getting "multiple -d flags not allowed errors" when using "-dport" flagsJune 23

    I have a host that acts as a gateway for other hosts. The configuration is such that eth0( is connected to internet via a router and eth1( is connected to internal network via switch. Given that, this host is also running a se

  • ejabberd on vm not connect to another xmmp server (iptables dnat dport 5269)December 12

    i migrate a ejabberd server to a vm with only private ip. is work fine but not connect to anothers xmmp servers. log: s2s connection: xxxx -> gmail.com (remote server not found) telnet test: telnet xmpp-server.l.google.com 5269 Connection time out in

  • How to make iptables DNAT work with macvlanJanuary 8

    I'm stuck with an AT&T gateway that doesn't understand a MAC can have more than 1 IP address. So I'm using macvlan on linux to add ports with different mac addresses. This seem to work for local connections to the macvlan ports. But, when I try and D

  • iptables DNAT port forward to another machine on LANJanuary 28

    I am trying to implement iptables forwarding rules in order to internally redirect packets coming through a specific port. My machine is running under the distribution Ubuntu Server 12.04.3, with UFW and all the latest updates. So far, I was able to

  • Linux iptables DNAT stops working after some timeFebruary 17

    3 down vote favorite I have a strange behaviour in my server setup. It looks like that. client1 <----> (br1/vlan1) Server (br21/vlan21) <---> client2 On the server I have set up

  • packages from router dont match iptables dnat ruleMarch 25

    I have the follow rules to forward port 443 from external to a internal host: IF_INET=ppp0 IF_INET_IP= # Router External IP IF_LAN_IP= # Router Internal IP IF_LAN_NET= VPN_HOST= # Internet Host with a HTTPS

  • IPTables DNAT rule to local web server doesn't work with localhost?June 18

    I have linux box functioning as Wireless Access Point. Wireless clients connect and then browse the web. I am only allowing port 80. There are certain sites I'd like to block, but not by dropping the packet, but by redirecting them to a blocked.html

  • Linux iptables DNAT 53306 to 3306July 1

    mysql real port is 3306. I want public network using 53306 to visit mysql,and 3306 not allowed access from public network. How to write the iptables rules DNAT 53306 to 3306 ? help me --------------Solutions------------- You can redirect th

  • iptables: DNAT configuration FTP serviceJanuary 15

    Hi have a FTP server behind a firewall and have problemi with DNAT configuration, internal server have ip iptables -P INPUT ACCEPT iptables -P FORWARD ACCEPT iptables -P OUTPUT ACCEPT iptables -t nat -A PREROUTING -i eth0 -p tcp --dpor

  • iptables DNAT packets into an openswan IPSEC tunnelMarch 16

    I have the following network setup: +-----------------------------------+ | | +------------------------+ | Public Box | | Client Box | IPSEC | public IP: x.x.x.x | | +--------------+ source IP for IPSEC: | +----------------

  • Linux iptables DNAT on incoming packet without conntrack (stateless)April 16

    In my linux box, i got two UDP apps binded on port 46000 (App A) and 36000(App B) respectively. The apps communicate with two UDP servers bindeded as (Srv X) and (Srv Y) respectively. When i send the packet o

  • Iptables DNAT working in my own network, but not through VPNJuly 2

    For some reasons I need to switch a server ip to another ip, in order to be seen by another computer elsewhere through vpn. So I'm using iptables (didn't know any of that until yesterday) and testing with some result in my own network as follows: ser

  • How to ensure iptables DNAT redirect all, to work with domains?July 6

    When redirecting all sources (any port) to my router IP, it works with IP. I do this with iptables, Nat/DNAT PREROUTING. $ iptables -t nat -A PREROUTING -i wlan0 -p tcp -j DNAT --to-destination $ iptables -t nat -A POSTROUTING -j MASQUERAD

  • iptables DNAT to external IP without masquerading does not workJuly 29

    On server iptables -t nat -A PREROUTING -p tcp --dport 20000 -j DNAT --to-destination: iptables -t nat -A PREROUTING -p tcp --dport 20000 -j LOG --log-prefix pre20k iptables -t nat -A POSTROUTING -p tcp --dport 20000 -j LOG --l

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