Networking :: Two Hosts On DDNS - Can Send Two Domains Through One Router
Feb 11, 2011
I have two virtual hosts that I want to be able to send through one router. I have two seperate dynamic hostnames on dyndns.
Apparently my router allows me to enter two seperate hostnames locally as well: DynDNS Host and Domain Name
Code:
How do I tell the router which is which? Currently I see the same site with both URLs
Do I have to set one vhost to do some 'funky' stuff (black hole in my head when it comes to static routes or BIND? ). And then set the other vhost to host both sites?
I'm running CentOS and an apache webserver. I want to demo a web site 'externally' from two different sub-domains.
I've looked high and low but most examples don't seem to be simply trying to put two different web-sites up to two Dynamic DNS Hosts.
It must be possible, all the pieces are there. I'm just missing the link!
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Apr 3, 2011
I have DDNS configured and working for dynamic addresses, but it's not quite right for static addresses yet. The DHCP server assigns the static address, but it doesn't update the DNS sever with the associated host name. Which means I have to use the IP address when accessing the host instead of the host name. How can I get the DHCP server to update the DNS with the host name associated with the fixed-address?Here is my current dhcpd.conf.
Code:
ddns-update-style interim;
ignore client-updates;
[code]....
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Jul 24, 2010
I am running a web server with a public ip that is dynamic. I am using ZoneEdit.com and my WRT54GS router to manage my dynamic ip address whenever it changes. It is working as it should.
However, the subdomains ip addresses are not changing. It still shows the old addresses versus the new address. Is it possible to set it where my subdomains address will change as well?
Right now on my router under the ddns menu, I have the host name set to domain.com. Do I need to make a wildcard?
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Oct 6, 2009
I would like to setup postfix to act as a relay for the outgoing mails of a couple of servers each serving it's own domain.The mails we are talking about are standard administrative emails like user registration, password reset request. The volume of those mails will naturally grow as the site grows. Which for me poses the problem that depending on the growth of the site you will sooner or later hit the quotas imposed by (my otherwise preferred) providers like GMail or smtp.com.
So what I need is a mail relay that will only accept mails from authenticated clients from hosts in its access list and relay their mail without restrictions. Is that possible with postfix? What has to be changed in the config and what are the pitfalls?
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Apr 13, 2011
I'm trying to pass multiple dpmains thru one ubuntu server to various hosts on my local network.
[url] should be sent to the /var/www folder on the local host.
[url] should be forwarded to an IIS box on my local network (owa.nunya.local)
[url] should be sent to another ubunto box on my local network (smtp.biznet.net)
I have tried placing VirtualHost entries in /etc/apache2/sites-available/default and [url]and [url] both work but [url] gets forwarded to the c:inetpub folder on the IIS box.
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May 6, 2011
first time user of F14 here. Used PCLinuxOS so far. Installed F14 fine , got samba up, set the hostname of the box to fedora.linux BUT when I connect to my wireless router (Belkin) the hostname shown in the routers DHCP client list is different:
Router shows:
IP Address-----Host Name-----------------MAC Address
192.168.2.4----ralf-FK790AA-ABA-m9---00:22:5F:17:dE:98
In terminal it shows
[dagaz@fedora ~]$ hostname
fedora.linux
[dagaz@fedora ~]$
When I search the forum or google, I end up with hostsfile or samba howtos. Those settings all show the right name : fedora.linux Why does the router show ralf-FK7 etc..? and where can I change it?
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Jan 9, 2010
I've set up a mail server using Postfix + dovecot. It works just fine sending email to users in my domain. However, I can't send email to external domains (like gmail, yahoo, etc) different than mine. I've tried sending from a remote connection using Evolution and I get the following message on mail.log
Jan 8 10:45:20 mail postfix/smtpd[14911]: connect from unknown[]
Jan 8 10:45:21 mail postfix/smtpd[14911]: NOQUEUE: reject: RCPT from unknown[]: 550 5.1.1 <lobomacz@gmail.com>: Recipient address rejected: User unknown in local recipient table; from=<user@mydomain.com> to=<lobomacz@gmail.com> proto=ESMTP helo=<[10.24.4.230]>
[Code].....
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Jun 15, 2011
When I use sendmail (or, most commonly, a PHP or Perl script uses it) to send to any other domain except my own, it works great. When I use it to send to my own domain, however, it's trying to deliver it to localhost. Problem is, all our mail is handled by an Exchange server on a different machine, so I really don't want If I run sendmail manually for a test message to myself, here's how it comes up after the message is closed out:
Code:
echo "Subject: test" | /usr/sbin/sendmail -v me@domain.com
354 Enter mail, end with "." on a line by itself
>>> .
050 <me@domain.com>... Connecting to local...
[code]...
The message then gets dropped into my box at /var/mail/xxxx, but that's really not helpful to me -- I need to to connect to that other machine to deliver the mail there. This machine isn't used as a mail server at all. Also, if it's trying to send to a username that doesn't have an account on this server (we have many), it just fails entirely with "user unknown" (that makes sense, as there are only a couple of user accounts on the web server). how to get sendmail to connect to our mail server instead of "local"?
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May 28, 2011
How to restrict users to send mail to outside domains in qmail server, i have centos and qmail installed
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Nov 5, 2010
Let me start off by saying I am experienced with computers, though my knowledge of Linux and networking is limited. I've just recently started setting up a Ubuntu 10.04 server to be a SMTP server. I've followed this guide by the letter: [URL] What I've attempted, to test the server, is the following:
telnet localhost 25
ehlo localhost
(this returns all the desired information) I then do a MAIL FROM my domain which is accepted, and try to do a RCPT TO an external mail server (gmail) to test sending an email. I am then told 'Relay Access Denied'. I'm sure that there's something fundamental that I'm either not understanding or not doing correctly. I simply want an SMTP server that can send to other domains. What do I need to do?
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Jan 4, 2010
I've set up a fully functional e-mail server and can send and receive e-mails to and from an array of virtual domains without a problem. The only hiccup I have is that only root is able to send e-mails via mutt. I have not stipulated a sendmail line in the mutt configuration so it's sending e-mail with default configuration. How can I get it so that all users on the server can send outgoing e-mails via mutt?
Update: Solved this by following this http://inmyplace.info/2008/05/07/pos...ission-denied/
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Jun 14, 2011
I want to configure a single mail server to send and receive mail from multiple sub domains of my domain. I've already installed Postfix/Dovecot and it is perfectly working for mydomain.com. And also installed roundcube for Web Mail. Can I further customize this setup to process mail to sub domains? ex- someone@subdomain1.mydomain.com, someone@subdomain2.mydomain.com, someone2@subdomain1.mydomain.com (someone@subdomain1.mydomain.com and someone@subdomain2.mydomain.com are 2 separate users. they should be able to log on to web interface separately)
Currently i use system account names as email user names. (ex - systemusername@mydomain.com). The only MX record in my domain DNS pointed to current server (mailhost.mydomain.com). I read about postfix virtual domains. but couldnt figure out how to use it to achive my target. I do not need configuration details. Just explain me the way to do it. I can do the rest my self.
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Jul 31, 2010
I have a server with a static IP that I use as a sendmail server. The problem is that port 25 is exposed. As a result, anybody can login to the SMTP server and send mail from my domain as a user that does not exist as well as email from other non-existant domains. I'm sure there are sendmail options that I can enable to do some checks, like if the user exists on that server or if the domain is the same on the server, etc. I was wondering if you guys can mention a few that I can add to my sendmail.mc file?
I have thought about auth login, the problem is if auth login is on my public port then I won't be able to receive email from gmail because it would be unauthenticated. Also, I only have 1 mail server. I know the ideal solution is to have 2 mail servers. One for outgoing mail/internal mail server where you can enable auth login and the other for incoming mail which just acts as the relay to the internal mail server. That way spammers can't login to send mail out. That's another question I had, how do I configure sendmail to only send email out/in?
Anyhow, so I have to make do with 1 mail server for now. So I decided to add a few rules on iptables. I grabbed the IP range that gmail uses when I receive mail from then and added it to my iptables with the following command.
[Code]....
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Aug 17, 2011
Well, as many proxy applications, GNOME Network Proxy Preferences only allow to ignore hosts. What I want to do is exactly the opposite. I only want to use the proxy for few sites. Is it possible to define only the allowed hosts in any way?
PS: I know FoxyProxy add-on for Firefox does this, but 1)I don't use Firefox and 2)I want the proxy settings system wide not only for browser.
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Jan 15, 2010
Ok I have 5 virtual hosts on one IP but only 1 domain (forwardconference.org) will be sending emails out to people....confirmations and such. The other sites may send out some emails...like back to my personal email address not hosted on this server. That works. But to people on like aol or yahoo or hotmail....it doesnt
Problem is, most people are not getting the emails. Mailq reports them being deffered for some reason. I'm having our ISP setup a PTR to forwardconference.org....does this mean all my emails from either of the sites....even if I put a different FROM: address in the php mail script...will come from [URL]? Or should I just setup my server as its own SMTP server?
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Jun 3, 2010
It does not send mail if I only add contact_groups in host definition.
Code:
define host{
use generic-host ; Inherit default values from a template
host_name NAME1 ; The name we're giving to this switch
address XX.X.X.X ; IP address of the switch
[Code]....
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Sep 12, 2010
I'm running sendmail 8.14 which sends out thousands of email. I'm getting several timeout error on only a few particular hosts. What I found is almost all of them are Exim 4.69
maillog shows
--> timeout waiting for input from ..@xxx during client greeting
after several tries, I finally got bounce back with
--> 451 4.4.1 reply: read error from xxx.com.
.. Deferred: Connection timed out with xxx.com.
Message could not be delivered for X day
Message will be deleted from queue
When i search though maillog with all of those error and they all seems to be running Exim and they are different mail domains.
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Feb 5, 2010
I have setup dns on my rhel 5 server. It is working fine. My dhcp server is setup on my sonic firewall. The sonic firewall hands out our IP addresses. My dns server sees the static IP addresses but how do I get name resolution setup for dhcp?
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Feb 25, 2010
I was thinking about setting up my own mail server. Problem is my ISP will not let me have a static IP unless I upgrade to a Business class service which is just too expensive for home use. As a work around I use a DDNS service from Dlink, which is actually done via DYNDNS.com. So essentially I have mydomain.dlinkddns.com point to my Dynamic WAN IP, and it is all automatically managed by my router.
Is there a way I can haveoint to my mail server without it being a subdomain of my DDNS om)? In other words I would like to have the email someone@mymaildomain.com and not have it be dlinkddns.com or something like that. I know someone has done it, I just have never done it. Not quite sure what to google to find the answer myself either.
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Apr 8, 2011
I just installed FC14 64 bit system and I am looking to setup a snmp trap server so I can send up/down traps from my router to it which in turn will email me though sendmail. I have installed "net-snmp-utils-5.5-21.fc14.x86_64" and "net-snmp-libs-5.5-21.fc14.x86_64" packages and have downloaded snmptt_1.3 but I don't have the command "snmptrapd". Is there another package I need for this? Could it just be x64 doesn't support it?
Here is some info off the box.
[root@scanserver ~]# uname -a
Linux scanserver 2.6.35.11-83.fc14.x86_64 #1 SMP Mon Feb 7 07:06:44 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
[root@scanserver init.d]# !rpm
[Code]....
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Apr 13, 2010
Because of the configuration of my house, I need two routers.I have a DLink ADSL router as my main router and the Belkin N1 as my repeater.I have set up the IP address in the Belkin to be 10.1.1.10 - my DLink is 10.1.1.1. I have disable the dhcp in the Belkin and set the DNS as ISP provided. [URL]..I have set the channel to 11 and in the Ubuntu Network Manger I have set the IPV4 to Link Local Only. I can see the Belkin and connect with my PC.but it will not take me through to the internet.
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Jun 18, 2011
I want to set up a Linux box as a wireless router to replace our existing Netgear WNR1000 router, as I believe the Netgear does not support the coming IPv6 protocol. Unfortunately, it is not flashable with OpenWRT or DD-WRT presently.
As we have Comcast, our cable modem acts as a dumb modem according to the customer support guy I talked to, and our router is the one that asks for the IP address from DHCP. Thus, when Comcast switches over to IPv6, I don't believe my existing router would work, correct?
My idea is to take a Linux box and put two NICs and a wireless adapter in it, using IPCop or Smoothwall to set up a router. I could then enable IPv6 support for when we have IPv6 with Comcast. Is that possible? Would there be a way to get BIND to hand out private IP addresses in the same subnet on the both the LAN NIC and the wireless card?
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May 2, 2011
I'm trying to use ssh-keyscan to get some known_host file population going on, but I have a ton of hosts I want to scan, all with multiple aliases in /etc/hosts. Is there a way to use my current /etc/hosts file to do an ssh-keyscan instead of making a special list of hosts that (from what I've read) ssh-keyscan needs?
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Nov 6, 2009
I have a desktop PC running Ubuntu 9.10 and Windows 7, and a Eee PC 701 laptop running EasyPeasy Ubuntu 9.04. I'd like to connect the desktop to the laptop with a wired connection (eth0), then the laptop to my ADSL router using wireless (ath0).
I have a crossover ethernet cable (I bought on ebay). I have set up my laptop with a static IP address on my LAN and it uses OpenDNS.
I have added this to /etc/sysctl.conf on the laptop:
net.ipv4.ip_forward=1
Then I tried this on the laptop:
sudo iptables --table nat --append POSTROUTING --out-interface ath0 -j MASQUERADE
sudo iptables --append FORWARD --in-interface eth0 -j ACCEPT
This is a variation on what I found on other sites describing how to set up a router. I don't understand iptables very well, but I gather that the above two lines should set up forwarding so that traffic from my router to the laptop will be forwarded to the desktop, and vice versa.
But this doesn't work. The connection doesn't even establish between the laptop and the desktop.
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Apr 24, 2010
I'm having trouble getting my network set up the way that I want it/had it. You see, when I first set up my network, I just had my cable modem going directly to my standard wired router (A D-Link DI-604), which had DHCP,and was connected to all of the computers on my network. I had one switch hooked up to one of the ports of the router, but this was a regular switch, and it would not try to assign IP addresses, it would just pass through the DHCP info as I wanted.
Now however, my network setup has changed. My room mate and I both got laptops, and we decided that we wanted to have wireless access so we didn't have to constantly plug in to the router.
Now my network is set up like this: The modem is hooked up to the router(DI-604), which is hooked up on the LAN side to our computers, our switch (which is hooked up to 3 more computers), and to a wireless router card (A Gigabyte GN-BC01).
The wireless router card has two jacks for ethernet. One for WAN, and one for LAN. The LAN side we have plugged only into the computer in which the card is installed.
Now the problem is this: The wireless router card comes with DHCP by default, and it's assigning addresses to the laptops and to the computer hat it's in, and worse, the IP addresses are on a different subnet than that of the main dlink router. The Main (dlink) router assigns addresses from 192.168.0.1 (itself) to 192.168.0.254, while the wireless router card assigns addresses from 192.168.1.1 to 192.168.1.254 (itself).
Because of this, I cannot access services on the wireless network from my wired network or vice versa. The first thing I tried was setting the card to assign addresses from 192.168.0.12 to 192.168.0.253, however it just said "internal error" when I tried to do this. I decided that this may be because it sees that it was being assigned an address on it's WAN side on the same subnet. So the next thing I tried was disabling DHCP and setting the "LAN IP Address" to 192.168.0.12, hoping that the DHCP would just go through the card, like a switch. I would have set the LAN IP address to be assigned by DHCP, but this was not an option, so I decided that'd be the best thing to set it to.
Once again however, setting the LAN ip address to an address on the same subnet as that of the IP assigned to it's WAN side caused it to report an "internal error". I verified that this was the issue by setting the LAN address to several other private IP addresses to test (I.E. 10.0.0.1, 192.168.3.1, 192.168.5.12).
My question then really is: How do I set up both routers so that I can access services and computers from each network from the other network. Should I set them with different subnets and set the gateway on the wireless network to the main router? To the wireless router card? Should I put them on the same subnet? Will it know how to communicate?
Here is a link to (picture) my network diagram. Network Diagram
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Mar 26, 2009
These r IP provided by my ISP that i've put on Fedora 8:
WAN IP:xxx.xxx.xxx.17 (eth0)
Subnet:255.255.255.252
Gateway:xxx.xxx.xxx.18
Valid static(public) IP set of 2:
IP:xxx.xxx.xxx.147 & 148 (eth1, eth2)
Subnet:255.255.255.240
i want to run xxx.xxx.xxx.147 as a web server & xxx.xxx.xxx.148 as a ftp server. but I'm able to ping only xxx.xxx.xxx.17(WAN IP) from outside world. Can any1 tell me that how can i bring my 147 & 148 IP online without router.
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Oct 30, 2010
Here the problem Ping to [URL]... works ok.
[Code]....
I thought, perhaps from one and one, have public IP blocked, but the funny thing is that from another PC that I have at same room (with Ubuntu 10.04 too) connected to the same internet connection (with the same public IP Address) works perfectly. What else can I check?
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Jan 25, 2011
Can ubuntu be configured to reserve more bandwidth for some domains at the expense of others?
Eg you are browsing facebook and data comes faster than on a tab where you are browsing ......
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Jan 26, 2011
Probably an easy (which means stoopid) question...I am trying to reroute a website using my hosts file so that it matches my servers certificate file for testing without effect dns and the live site.When I went to edit my /etc/hosts file it is non-existent. I have, I am assuming in it's place, hosts.allow and hosts.deny. Can anyone explain why I do not have a hosts file?
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Feb 27, 2011
I'll post an scenario and hopefully you can help me understand the concept and put me in the right track and do what I intend, if possible. Let's say I have a dedicated server with 2 static IPs each with an associated domain, let's call them www.site1.com and www.site2.com. Now, apache is running on it, I'd like to redirect anyone coming from site1.com to /home/site1/public_html and anyone coming from site2.com to /home/site2/public_html.In short, apache serving 2 entire roots depending on the accessed IP/domain. Whether the sites root are in the same parent folder, such as /home/site/site1_public_html and /home/site/site2_public_html or like above doesn't really matter, as long as it works.Additionally, do something similar with Postfix, so that I can have it running imap/smtp for foobar@site1.com and foobar@site2.com on the same server.At this moment, both apache and postfix are working, and we host only www.site1.com with the respective foobar@site1.com. But I'm not sure how to proceed or even if it's possible to achieve the above solution.
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