Server :: Iptables To Forward According To The Domain?
Jul 22, 2011
my company is a small company!and it only have one public ip,but my company have a lot of websites to access!now i use Reverse Proxy Server -- apahce to solve temporary!it is not convenience for me !So i think out whether iptables can not be used to forward according to the domain!!it is the test as follows:
public ip :10.0.0.1
privite ip1 :192.168.1.1
matching website domain:www1.test.com
privite ip2:192.168.1.2
matching website domain:www2.test.com
and if someone access [URL] the iptables will know they want to access 192.168.1.1 and it will forward to the server 192.168.1.1!!
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Aug 3, 2010
My customer has a domain hosted by me and he has another domain hosted by another isp. He would like to have this domain am hosted to be forwarded so thwt upon entering the url he should have the website which is hosted by this other ISP displayed (the url of the website be musked). How do i configure my DNS at achieve this?
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Dec 24, 2008
So here is my issue in a nutshell. I need to take FTP requests that hit Server_A and forward them to Server_B. Server_B is not natted...Server_B is another public server in a completely different location in the world. One thing to note is that I only have one NIC hence why you will see both in and out being eth0. This is what I have in my iptables on SERVER_A:iptables -A FORWARD -p tcp -i eth0 --sport 21 -o eth0 -d SERVER_B --dport 21 -m state --state NEW -j ACCEPTiptables -A FORWARD -p tcp -i eth0 --sport 20 -o eth0 -d SERVER_B --dport 20 -m state --state NEW -j ACCEPTI've also tried both of the above without the --sport option. When I FTP to SERVER_A (where the above iptables rule are) it connects to SERVER_A instead of forwarding them to SERVER_B.
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Jan 29, 2010
I have a server on my router on the DMZ. All outside traffic goes to it. This server has Apache running and the domain mysite.com resolves to the the DMZ web server. I have a second server on the LAN that also has apache running. I want to set up another domain, myothersite.com to resolve to the second server on the LAN. Since the main server is on DMZ I have the DNS A records for myothersite.com pointing to the public IP that the DMZ is on.
How do I get myothersite.com to resolve to the second webserver on the LAN? What configuration do I need to do on my DMZ server so it routes traffic for myothersite.com to the other server on teh LAN? Do I use BIND DNS? If so please advise on how to set that up. BIND DNS seems confusing and I having trouble knowing how to configuring it. Is there another option besides BIND?
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May 20, 2009
I'm using Fedora Core5.0 I have using Iptables for forward port 80 to port 3128(Squid) in the same of server.I need to forward using Iptables to use the other proxy server because this server i am use for vpn and mail tranfer.What a Commnand for i use?ase 1. Server 1 >Ip 192.168.0.4 SQUID WITH PORT(3128)2. Server 2 IP 192.168.0.254 PF SENSE (3128) I will use server 2 for using internet connect only.
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Aug 5, 2009
If I forward port 80 to port 3128 for squid with an iptable rule, does port 3128 have to be open on the firewall or is this all routed behind the firewall?
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Jan 7, 2010
I am trying to do a NAT forward in iptables but get the following error:Quote:[root@server88-xxx-xxx-198 openvpn]# iptables -t nat -I POSTROUTING -i tun0 -o eiptables v1.3.5: Can't use -i with POSTROUTINGAny ideas on what to do?I have an OpenVON server running and I need the client to use the ports on the OpenVPN server
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May 4, 2010
I`m running a rather simple iptables script, but no matter what port i try to forward it wont open. Here are the basics:
Code:
ipt="/usr/sbin/iptables"
$ipt -F
[code]...
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Nov 22, 2010
easier way to forward email, in postfix, from a user to one domain for the user without listing every domain and user name? Example:send all of user joe's email to joe@somewhere, in which there are mulitple domains other than "somewhere".
Usual Given Example-
/etc/postfix/virtual:
joe@example.com joe@somewhere
jane@example.com jane@somewhere-else
[code]....
I'm looking for an easier way to forward email, verses having (ex) 50 different lines for 5 users and 10 domains.
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May 7, 2009
I need to forward a port to use dtella. I'm using Fedora 10, using iptables for my firewall.
I'm currently trying to forward it from terminal with this command:
Code:
sudo iptables -t nat -A PREROUTING -p udp -i eth0 -d [ip address] --dport 11823 -j DNAT --to 192.168.0.2:80
this is what I get from iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
[Code].....
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May 6, 2011
I just upgraded my fedora 13 to fedora 14. I changed the cpu and the motherboard so i had to install from scratch...but I saved my iptables.
The problem is that
I do all the suff
service iptables save
And apparently it works...
But everytime I reboot I have to re run the script to forward Internet...Everything else works just fine...I mean I can ssh, vnc, etc but wont forward intel :S dont know why?
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Apr 15, 2009
I have three machines on three networks192.x.x.x10.x.x.x172.x.x.xThe routers are set to forward communication between 192. network and 10. network, and between the 10. network and the 172. network.However, there's not routing between 192. and 172.I want to fix that by using a machine on the 10. network to forward communication between the other two networks.The machine has one etherent connection eth0 whose address is 10.1.1.11I set up an aliased ip address eth0:0 to be 10.1.1.12 using Quote:ifconfig eth0:0 10.1.1.12Then I tried to set forwarding rules the 10. machine such that 10.1.1.12 address will provide access to the machine 172.1.1.55 as followsQuote:# iptables -t nat -A PREROUTING -d 10.1.1.12 -j DNAT --to-destination 172.1.1.55The default policies for all chains is ACCEPT.I then try to access 10.1.1.12 from 192.1.1.20 expecting it to actually access 172.1.1.55 ; it does not work
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Nov 15, 2010
Lets say i have two machines on public ips. If i get incoming traffic on machine #1 on port 55242 i would just like to forward it to machine #2 on port 35000.I would just like to use machine #1 same way as a dns server works. It just redirects the traffic and tells the client where to go.
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Jun 3, 2011
iptables and multiple public-facing IP addresses. With the current setup I have a public-facing firewall with iptables which will then forward traffic to a LAN IP. I will hopefully be allotted 1 private IP per public IP, which I hope will make this much more simple. For example, I have server A with the LAN IP of 10.0.0.1 which I would like to have traffic forwarded from 5.0.0.1, the public IP. I also have server B with LAN IP of 10.0.0.2 which I would like to have forwarded from 5.0.0.2, the second public IP. From what I have read and understood, this should be a simple task, however I would just like to double check to make sure that it is in fact possible, and if so, how would it be recommended that I go about doing so. Essentially, I need to forward each public IP to a corresponding LAN IP with all ports.
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Jul 18, 2011
The goal is to make connection calls (ssh, ping, ...) possible from one LAN (LAN-1) to a number of (at the moment two) separate smaller LANs.These smaller LANs (LAN-2a, LAN-2b, ...) have exact same specifications (same IP range, same number of nodes, ...)!The idea is to use a Fedora box (release 14 with 2.6.35.6-45.fc14.i686) and implement an appropriate iptables routing/forwarding.The Fedora box has three network interfaces:
- eth0 (aaa.bbb.ccc.m) on LAN-1 (aaa.bbb.ccc.0/24)
- eth1 (ddd.eee.fff.n) on LAN-2a (ddd.eee.fff.0/27)
- eth2 (ddd.eee.fff.p) on LAN-2b (ddd.eee.fff.0/27)
[code]....
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May 3, 2010
I'm intending to replace my current router (486DX2 w/16MB running FREESCO which has been faithfully working 24/7 for well over a decade) with a debian box with a bit more grunt and newer features. I'm currently setting up my iptables ruleset and am after a bit of advice re the FORWARD policy. A few example rulesets I have found set the default policy to DROP and the have two lines for each port forward, one to allow the traffic and one to direct the incoming packets to the correct machine.
iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 25 -j DNAT --to-destination 10.0.100.10:25
iptables -A FORWARD -i eth1 -p tcp --dport 25 -o eth0 -d 10.0.100.10 -m conntrack --ctstate NEW -j ACCEPT
I'm thinking of setting the default policy to ACCEPT to cut down on typing as my default INPUT policy is DROP and unless there is a valid FORWARD rule for a particular port, the packets aren't going anywhere anyway. Or have I misunderstood something. My googling returned heaps of example scripts & not much intelligent commentary. Alternatively, what do you all use to configure & maintain your debian gateways; hand rolled iptables rules, or any toolset recommendations?
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Oct 25, 2009
What commands do you use to set the INPUT, OUTPUT, and FORWARD chains in iptables to ACCEPT?
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Jan 11, 2010
Can we enable IP tables to forward multicast or broadcast messages?
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May 3, 2010
How can I drop or forward a incoming connection from a part of a host like *.alicedsl.de
For example:
The user is connection from *.alicedsl.de on port 12345
So how can I drop this connection or forward to google.com on port 80
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Jul 17, 2010
Quote:
ISC joined other key participants of the internet technical community in celebrating the achievement of a significant milestone for the Domain Name System today as the root zone was digitally signed for the first time. This marked the deployment of the DNS Security Extensions (DNSSEC) at the top level of the DNS hierarchy and ushers the way forward for further roll-out of DNSSEC in the top level domains and DNS Service Providers.
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Aug 21, 2009
I've got a home server running Ubuntu Server 9.04 and several machines running Ubuntu Desktop (9.04 and 8.04) and Windows (XP, Vista and 7). Now what I want to do is to create a domain and directory server similar in function to Windows Server w/ AD and join my other machines to the domain, but am not sure where to start. I already have file shares with Samba but now I want to setup a domain.
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Jul 23, 2010
How to configure iptables to allow only 22,80,3306 ports for only a dynamic public ip/dyn dns domain name on a ubuntu server?
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Apr 12, 2011
iam using centos5.2.configured qmail,vpopmail. while adding domain form vadddomain<domain.co.in> At first time domain folder get created in domains directory.and also postmaster user also get created by default.And also in mysql. Now the problem is after some times or rebooting system domain get erased automatic.also in /var/qmail/users/assign file domain name get erased.
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Apr 7, 2011
i had created domain but not getting domain in /var/qmail/user/assign file.also it error /home/vpopmail/bin/vdominfo abc.co.inInvalid domain name
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Apr 4, 2011
I'm trying to use iptables in order to forward all the incoming packets for port 5555 to port 5556 on the same server (192.168.2.101).
I wrote the following commands:
iptables -A PREROUTING -t nat -i any -p tcp --dport 5555 -j DNAT --to 192.168.2.101:5556
iptables -A FORWARD -p tcp -m state --state NEW -d 192.168.2.101 --dport 5556 -j ACCEPT
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Feb 20, 2010
I'm using a Debian servers, as router/firwall.. I've two ethernet interfaces into the server, one for wan and one for lan. The i use SNAT so my LAN clients can access the internet throgh the debian router. That is working... Now i want to be able to access servers on the LAN site from the WAN site, and i wanna use port address translation (PAT). I have a FTP server running on a lan server, so i'm trying to portward port 21.
iptables -t nat -A PREROUTING -p tcp -i eth1 -d (WANIP) --dport 21 -j DNAT --to 192.168.1.2:21
When people try to access my FTP from the WAN site, they are redirected to the local FTP server, and they are promted for crendentials, but when the credentials are typed, and the local ftp server should answer the wan request, the connections dies.
The wan clients are being promted for credentials, so they are redirected to the local lan server, but after that the connections dies, so i think there is some kind of nat problem, when the local lan server is trying to respond to the wan request..
Here i my iptables script:
#flush table
iptables -F
#input regler
[code]....
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Jun 4, 2011
I want to host 5 websites on my new virtual server so I have created 2 nameservers that point to my virtual server's IP addresses as a glue record. What confuses me is when I create a new domain on my server it gives the new domain it's own nameservers (ns1.thenewdomain.co.uk etc) do I need to change these records so they use the nameservers I created earlier? If I do? Which particular records should I change? I'm running a Unix virtual server with a Plesk control panel.
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Jun 27, 2011
i need to allow window domain controller user to use file share of linux.windows DC user can see the share file and directories of linux file server but not able to access.
below is brief--
I have a Linux machine which is on my network but not on my domain. I have configured SAMBA FILESERVER for file sharing purpose. I have a Windows XP PC which is on the domain(windows server) that I am trying to connect to a share on the Linux box. I supply my credentials but regardless of which login I use I always get Logon Failure. I have created an account on the Linux machine with the same user name and password as my domain account but so far no luck. Can I connect from a domain PC to a non-domain Linux box? Is there something else I should be checking?
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Dec 30, 2010
I'm working for a smallish non-profit that has gone through some recent growing pains. We have two sites that are currently without a domain controller, and no money for MS licenses, so I was thinking of trying to add a couple of additional Linux machines (we already run Linux for web services internally, and I've set up a test case previously to see if I could get a server to join the domain, which was a success) and was trying to find out if I can get them to act as Domain Controllers without replacing the domain. The main issue that I'm having at those locations is drive mappings are not happening correctly against our DFS file servers. The one other location that had this issue had it go away when we added a local DC. The domain is a Server 2008 domain.
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May 13, 2010
The company I work for, as usual, is Microsoft-centric. I'm attempting to integrate my Ubuntu server into the domain to allow domain users to authenticate to the server and access file shares using Samba. Here's my current configuration:
[Code].....
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