Networking :: Vhost With Reverse DNS On ADSL2 Connection Not Binding
Mar 22, 2010
I'm working on an ADSL2 connection that connects via PPPoE and it is assigned a static IP. On top of the static, the ISP has assigned a small block of 6 useable IP addresses.
- The primary static IP is on the interface ppp0
- The other 6 IPs are configured as eth0:1, eth0:2, eth0:3 etc.
With the above setup all IPs are reachable and useable on the internet.
- The revers DNS has been updated for a few of these and resolves with no problems. ie: eth0:1 has the 123.123.123.123 IP and resolves to blah.host.com and blah.host.com resolves to the IP address.
- To test this I have tried a program like BNC to bind to the IP address on eth0:1 but for some reason when connecting externally the host address is coming up with the FQDN on ppp0 interface IP, not the vhost IP.
Questions is, is this the normal behaviour since its a PPPoE connection and would only work if the ISP supported a bridged connection? something on the ISP end not allowing this to work?
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Jan 6, 2010
Here my setup of Apache :
I have two virtual hosts on separate IP and on both I am using port :80 one is main website domain.name and another webmail.domain.name. And to get full link path I am using index.html with redirection derectives. My question how I can setup each Vhost to he is own redirection directive to set two full link like:
when type webmail.domainname -----> redirect to webmail.domainname/horde/imp/file.php
and www.domainname ------> redirect to www.domainname/csr/
Right now working only one of this Vhosts, just problem to separate them when I type www.domainname -----> apache redirect to webmail.domainname.
index.html
<html>
<head>
<title>WebSite</title>
<meta http-equiv="REFRESH" content="1;url=http://www.domainname/csr/"></HEAD>
<BODY>REDIRECTION</BODY>
</HTML> .....
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Dec 3, 2009
I am have setup a temporary ssh server to reverse ssh to remote clients. When a client has an issue I have them reverse ssh to my server and then from my laptop or workststation connect to there workstation. The problem that I am having is when I connect to them from behind my firewall from my laptop the connection is really slow but when I connect to them from the firewall it is fast. I am using Firestarter which is simply a GUI for iptables. I am trying to figure out what iptables rule is causing the connection to slow down behind the firewall.
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Sep 24, 2010
I have two sites (actually more) configured in apache2. All sites have their own vhost file, which I enable or disable with a2enmod or a2dismod.
This works fine.
I have configured some SSL sites inside the vhost files, where I have created two different certificates. One for each site.
BUT, if I enable example2.com, it will always load the certificate from webmail.example1.com when i go to the ssl site webmail.example2.com, nomather what (because it comes first in the alphabet maybe) ?.
If I then uncomment the SSL site for example1.com if will work fine with webmail.example2.com, but of course then the site for webmail.example1.com is not working since it is uncommented.
So for some reason, it "falls back" to this site webmail.example1.com everytime, which I have absolutely no idea why it does this. All the other vhost running on port 80 configurations, works fine, but just not the SSL (port 443 ones).
Example1.com:
Code:
<VirtualHost *:80>
DocumentRoot /home/example1com/wwwroot/
ServerName www.example1.com:80
ServerAlias example1.com:80
[Code].....
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Oct 22, 2010
I've just installed Zentyal (formally eBox) which is a firewall built on Ubuntu server 10.04. Unfortunately my PCI modem is not automatically detected upon installation and the Zentyal community forum is not very active.Is it possible to get the 4-port Solos Multiport PCI ADSL2+ Modem card from Traverse Technologies working under Zentyal?Apparently the driver is included in kernel versions 2.6.29 and later so I was surprised that it was not automatically detected and working upon installation. It is also available from Zentyal was able to detect their single port card, the Vicking PCIADSL2+ttp://www.traverse.com.au/productvi...product_id=115). This card worked out-the-box - all I had to do was enter my static IP details! Is there any way to achieve the same functionality with the Solos 4 port?
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Jul 29, 2010
how to install broad band wireless modem (netgear)ADSL2 on Fedora core 7
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Jul 14, 2010
I have a RHEL5 box with dual-heads (X displays :0.0 and :0.1). I have the X11 vnc module loaded properly in xorg.conf and it's serving both displays out on port 5900 and 6900 respectively. I want to be able to "send" either screen to another machine running vncviewer -listen, but I can only manage to send the primary display.
I'm using, for example: vncconfig -connect remoteviewer:5500 to initiate the reverse connection, which (understandably) makes the primary display appear on the remote listening display. However, I would expect that vncconfig -display :0.1 -connect remoteviewer:5500 would send the secondary display, but that doesn't happen, I get the primary display again. I don't see a way to manually specify the local port to tell the remote viewer to connect to, am I missing something? How do I tell the remote listening viewer to connect to port 6900 instead of 5900?
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Nov 23, 2010
I connect to my corporate LAN(dhcp) using a wired connection and also connect to a WLAN(dhcp) without various constraints applied by the wired connection. In short my wired connection blocks outbound ssh traffic to my server at home. My WLAN connection is pretty lax so ssh connections to my home webserver can be made using the wireless connection.Can I route ssh to that particular ip via my wireless connection?
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Dec 21, 2009
My query is how to tag Linux server bonding interface what mode I use for bonding in prospective of interface tagging.
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Oct 12, 2009
I am using RHEL5. These are my config files:
Code:
options {
listen-on port 53 { 127.0.0.1; 192.168.14.54; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
[code]....
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May 27, 2010
I have 4 DSL modems connected with 4 different ISP's my scenario is
a) My FC-2 machine with LAN IP=192.168.10.1 and Bond0 IP=192.168.1.1
b) Modem-A LAN IP= 192.168.1.2 , ext IP=xxx.xxx.xxx.xxx
c) Modem-B LAN IP=192.168.1.3, ext IP=xxx.xxx.xxx.xxx
d) Modem-C LAN IP=192.168.1.4, ext IP=xxx.xxx.xxx.xxx
e) Modem-D LAN IP=192.168.1.5, ext IP=xxx.xxx.xxx.xxx
Modem-A, B, C, and D LAN connected with my FC-2 machine, and all 4 interfaces of my machine are in Bond0, Now please help me what default Gateway I should set in my FC-2 machine?>??? or I have to set 4 gateways in my machine?and will this configuration works?
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Jul 7, 2010
When I type ifconfig,
I see wlan0 and eth0. I want to somehow bind these two together into one device.
How would I go about doing this?
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Apr 11, 2009
Can I bind 2 interent connections or more on same fedora server to create bigger one with double bandwidth ,or it needs a specific router to be able to do this.
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Sep 1, 2010
I have a centOS 5 server running apache 2 with it's web root at /var/www/html. By setting up a dns entry to point to the computer's IP, I was able to go to testing.myservername.com and reach the contents of that directory.My question is, how can I go about mapping multiple future domain names to folders that are under this webroot?For example how would i bind www.temporarydomain.com to the /var/www/html/temporarydomain/ folder and also be able to map www.anotherdomain.com to /var/www/html/anotherdomain/?
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Feb 28, 2009
how to set reverse dns for my IP? I've configured bind with a reverse dns for my IP, but it doesn't work when I test it.
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Sep 12, 2010
I have a domain and the settings for it are pointed at my IP address. But when I look up my IP address, it does not show my domain as the hostname. What settings do I have to change to make my IP translate into my domain as the hostname?
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Feb 2, 2011
I want to be able to SSH into my computer that I can't expose port 22 on. I've tried the ssh -R ... several times, but can't manage to make it work.I have my home computer (want to SSH into), server (can SSH into), and some computer I want to SSH from.Do I need to install the sshd on the machine I want to SSH into? What are the commands I need to enter to forward from my server to my home computer?
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Oct 23, 2009
I have the following bind9 configuration, and I'm trying to resolve reverse lookup IP address to name.
$ttl 38400
mydomain.org.INSOAmyhosting.com. (
1243281304
10800
[code]...
** server can't find 1.2.3.4.in-addr.arpa: NXDOMAIN
Is my PTR wrong, or what do I need to have the reverse lookup working ?
Note: I replace real IP by 1.2.3.4, same for my domain name.
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Mar 25, 2010
I have the zone record 0.16.271.in-addr.arpa which is working fine.
The NS for that zone is setup for my own name server.
I however would like to forward requests for 172.16.0.224/28 to another name server. How would I do this?
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May 7, 2011
I am trying to use the ssh reverse tunneling through the command
Code:
ssh -l login -p port <ip address> -R <remote port>:<local Ip>:<local port>
In order to enable some one in the remote host to connect my machine. through the command
Code:
ssh 127.0.0.1:<remote port>
However when I try to execute the first ssh command above I got the warnning
Code:
Warinning: remote port forwarding failed for listen port <remote port>
The problem always happens when the remote host I have tried to connect is my Fedora 14 machine. I can do that when using an Ubuntu as the remote host.
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Jan 31, 2010
so i start it with ssh -f -R 4096:localhost:22 me@server.com and it comes up and someone can log in at the remote end. how do i close the tunnel from the initiating end ? netstat doesnt seem to identify my end of the tunnel , unless im looking for the wrong thing!
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Jul 26, 2011
I am looking at using reverse SSH tunnels to manage servers on client sites. I have played around with reverse tunnelling, and have it working on one server back to my middle man server from which I can SSH across from my own PC. All working fine. When I scale this up to 100+ servers reverse tunnelling in, usernames & passwords become a pain, so I'd prefer to use RSA keys instead. My question, finally you might say, is this, to successfully ssh from my PC to the remote server, do the RSA keys need to be on the middle man server as well, or is it just my PC and the remote server?
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Dec 9, 2010
I config a revers dns im my domain, but him pointer to external server. Check all dns, virtual servers and apache configurations and dont find where it pointer to out. I too check with:
# host -t ptr 4.204.120.64.in-addr.arpa
4.204.120.64.in-addr.arpa domain name pointer srv.businessconnection.com.br. Should point to another server, this no is the correct!
I make equal config another server and work very well, but in this are some erro. Somebody know what I doing wrong?
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Jun 3, 2011
I've got 2 domains:
[URL]
This is how I've configured my resolv.conf file:
[URL]
When I run the host command, it can resolve machines in one.domain.com using both hostname and ipaddress. But when I run the host command for machines in two.domain.com, it only works for hostnames but not ip addresses. The result for ip addresses is:
Host 100.3.2.1.in-addr.arpa not found: 3(NXDOMAIN)
Why doesn't it try the 2nd nameserver in the resolv.conf file when resolving by ip adddress? Reverse pointers are configured for each machine in their respective domain dns servers. O/S is Oracle VM Server 2.2.1 (similar to Red Hat). Kernel is 2.6.18-128.2.1.4.37.el5xen.
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Oct 3, 2010
I am currently running 64-bit Windows 7 from my home laptop and I would like to establish an SSH reverse tunnel to my laptop from my work Ubuntu 64-bit machine. I have been reading many "tutorials" that have led me nowhere and I feel as though I'm chasing my tail now. I have done the following on my Ubuntu machine:
Code:
ssh -R 19999:localhost:22 laptop_ip
and on my Windows machine, using putty, did the following:
Code:
Host Name: host_IP
[Code]...
I am able to access my Ubuntu machine when on my work network but there I have been unsuccessful when it comes to trying to remotely access it. I have tried everything that I can think of (though I am a novice). If there is any help/suggestions/ideas that could help, please let me know and don't hesitate to ask for more info!
p.s. I would also like to enable x-forwarding, but for now I would like to have remote access to the Ubuntu machine.
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Sep 2, 2011
I don't know what the problem is, I followed the instructions here: [url]
But like some other folks there, netcfg usb0 dhcp just eventually times out.
I have an htc evo and fedora 15.
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Nov 15, 2010
I have looked around and haven't had a lot of luck finding any information on this. I could be blind...but I'm not sure, haha.
I do a lot of remote support for my clients (I do PC repairs and training). I have recently starting suggesting to some of my basic users that they give Ubuntu a try. So far it has been very well received and they are loving it. The problem I am running into is that some of them use laptops in multiple places, and some use routers that are not easily configured. In each case it makes port forwarding a large pain in the behind to allow for remote access.
I have started using the X11vnc reverse connection and it has been working well, except for the fact that it is using high quality color depth (24bit I think?). I know when starting the connection from my end I can set the color depth, but is there any way to set the depth of a reverse connection?
Also, I understand that using just vnc over the Internet is not secure. I need to look into a decent guide to set up SSH tunneling for this. I don't suppose anyone knows of a good guide for 10.04 and 10.10?
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Jul 17, 2011
p, li { white-space: pre-wrap; } Laptop connects to a (wired) ethernet port on a DLINK DIR-625 wireless router using dhcp. All works perfectly.
Using the same laptop connecting to the same wireless router, but using the wireless adapter and dhcp instead of wired ethernet, I can ping IP addresses on the LAN and also WAN IP's to/from anywhere on the net. I can perform reverse name resolutions (ip to host name), but not forward lookups (host names to ip addresses). I can use the DNS server obtained from dhcp or specify, by ip address, a DNS server to perform the lookups. This makes no difference.
Web pages (LAN server pages or from the internet) are not accessible by site address name or by ip address specifically.
Kubuntu 11.01
$ uname -r
2.6.38-10-generic
$ iwconfig
[Code].....
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Jul 13, 2011
We have bind 9.3 running on CentOS 5.2. We are able to do reverse lookups for the public IP's but not able to resolve to the private IP's on our network.
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Feb 15, 2010
I'm trying to access my oracle database (port 1521) from the outside.What I have:Outside -----> Proxy ----> DatabaseWhat I try is to configure a reverse proxy or iptables for accepting connections on port 1521 and transfer them to database. Only one computer of the outside will have access to the database.I suppose than this can be done with iptables or another way.In the real environment proxy will have two nicut for test purposes my computer will have only one (for test purposes, the tree computer will be in the same net)
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