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• Localhost working fine with executing php code except mail function.

  - by Radheshyam Nayak

  i tried executing the mail() and got the following error "Warning: mail() [function.mail]: Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() " but SMTP and smtp_port are both set in php.ini more ever other codes are working fine with localhost. disabled or/and added exception to firewell no result.... tried telnet localhost 25 error:could not connect to localhost port 25:connection failed..... Thunderbird my mail client says:could not connect to server localhost the connection was refused.... php.ini [mail function] ; For Win32 only. ; http://php.net/smtp SMTP = localhost smtp_port = 25 running mercury mail server in xampp... previously working fine but now not working..

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• Network connectivity logs on OSX

  - by Stephen

  I'm trying to determine whether or not Macs store a log of network connectivity. Specifically, I'm trying to find out if one of my machines (Mac Tower, OSX 10.7.4, 2-2.26 GHz, 16 GB DDR3) lost connection to pinpoint an issue. This machine is on an external network where and the IT staff is not very helpful, so I'm trying to ensure that there were network issues rather than some other local issue on that particular machine. Can you pull network logs thru Console that show when a network connection was established and was disconnected?

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• Config import on network-manager-openvpn

  - by Toki Tahmid

  I'm trying to use a free service using the OpenVPN protocol using OpenVPN's GUI module in the network manager. The config worked perfectly well as .ovpn on Windows. The behavior in Windows is such that I ran OpenVPN GUI and chose to connect to this particular VPN. It would then show the activity in the attempt to connect and opens a dialog box for username/password authentication. I've successfully imported all the configurations by changing the file type to .conf and using the import feature in network manager. However, attempting to connect would simply display the network manager's attempting to connect animation, but ultimately end with a notification of connection timing out. No prompt asking for authentication would appear at all, nor can I find any feature to prefix the authentication details. client dev tun proto tcp remote miami.proxpn.com 443 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert client.crt key client.key cipher BF-CBC keysize 512 comp-lzo verb 4 mute 5 tun-mtu 1500 mssfix 1450 auth-user-pass reneg-sec 0 # If you are connecting through an # HTTP proxy to reach the actual OpenVPN # server, put the proxy server/IP and # port number here. See the man page # if your proxy server requires # authentication. ;http-proxy-retry # retry on connection failures ;http-proxy [proxy server] [proxy port #] Needless to say, but I've downloaded all the required packages for setting up OpenVPN connections. By the way, as you can see above, .key and .crt files location are specified to be in the same directory as the config file. After importing the config file, if were to remove them, would it cause any problem? Note, I haven't removed them, so the problem I'm facing is not due to the absence of these files.

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• I'm receiving an SSL error in various browsers, but I can't find non-SSL content

  - by Scott Vercuski

  I'm receiving an error with my SSL connection. Using google chrome I see the following error: Your connection is encrypted with 128-bit encryption ... however this page includes other resources which are not secure I've scoured the source code, scripts and rendered code in the browser but cannot find where an http:// call is made. I've also used Fiddler2 to examine the traffic and everything is coming across via HTTPS. Has anyone run into this issue before and if so how did you go about finding the culprit. The website is running ASP.NET MVC3 in C#. The page in question is a simple payment page. The only external call is the google analytics tracking code. The page appears to load correctly, all images and scripts are in place.

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• help with internet

  - by Remus Rigo

  hi all I have 3 PC's at home (with Win XP, Win 7 & Win 7) and a router. I am always connected to the internet through the router (PPoE connection). My problem is that sometimes when I want to search or open a page, my browser tells me that the server cannot be reached, as if I don't have a connection to the internet. Other times it logs me out from messenger, but browsing still works. FTP download/upload also works. If i disable and enable the LAN then all works fine. Anyone got any idea besides re-installing OS? thanks

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• How to completely remove a wireless network setup from vista?

  - by 3d1l

  To remove a wireless connection setup I basically go to (network and sharing center) then select (manage wireless network) and then from the list of wireless networks I right click on the one that I want to remove and select (remove network) from the drop down menu. Problem is that when I go to define the wireless network again the system said that the network connection already exist so it seems that even when the wireless network definition is not longer display in the connections list, Vista keeps the configuration somewhere. So How can I be sure that a particular wireless network has been completely removed?

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• How to disable "N" Wireless Mode RTL8192 (Thinkpad Edge 15 Core i5) in natty

  - by Gustavo Rubio

  I've seen many owners of thinkpad edges which are supossed to be linux-friendly having problems with wireless adapter. I've found several links inside askubuntu and in ubuntuforums which have a lot of work-arounds for those problems, mine seems to be wierd though. I use my laptop on both my office and at home. At home I have a router which is A/B/G and here at home the wireless connection works just fine, using a WEP key. But in work I have a B/G/N wireless router and it doesn't work, my guess is that this adapter works with N modes but somehow this is buggy in the bundled driver in natty. I've tried to disable the "N" mode in the router but that didn't work. Later I went to realtek website, downloaded their driver and compiled myself, kinda seems to work most of the time but sometimes some websites keep trying to load or load just parts of it and images start to look like their links are broken and so on, much like what you get when you were loading a page and suddenly the connection is lost. This problem, as I said, is only using the realtek driver from their website. Dmesg gives me this a lot of these: [ 5869.049454] rtl8192se_update_ratr_table: ratr_index=0 ratr_table=0x00000ff5 [ 5879.240563] DHCP pkt src port:68, dest port:67!! So I thougth I might as well switch back to the original driver which seems to work just fine on A/B/G wireless networks but not on N networks so if anybody knows how to disable that mode from within the driver please let us know :) Thanks in advance! PS: I do found a link to a similar question and it was answered but let me remind you I'm NOT using the intel version of wireless for my thinkpad but the realtek (RTL8192SvB)

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• apache is up but does not read requests

  - by bosh

  This usually happens a few minutes after restarting apache: httpd daemons are up, but are not reading the requests from the sockets. The web clients just wait forever on the connection. When I run netstat, the Recv-Qs are showing a positive byte count which does not change. So basically the connection between the client and apache is in the CONNECTED state but no progress is made. Restarting apache solves the problem for a couple of minutes, but then it's deja vu all over again. Other servers (sshd, ftpd, etc) are fine. Where should I look further? Any clue? Thanks!

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• Unknown protocol when trying to connect to remote host with stunnel

  - by RaYell

  I'm trying to set up a stunnel for WebDav on Windows. I want to connect 80 port on my local interface to 443 on another machine in my network. I can ping the machine remote machine. However when I use the tunnel, I'm getting this error all the time SSL state (accept): before/accept initialization SSL_accept: 140760FC: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol There is nothing in the logs on the other machine and here's my stunnel connection config [https] accept = 127.0.0.2:80 connect = 10.0.0.60:443 verify = 0 I've set it up to accept all certificates so this shouldn't be a problem with a self-signed certificate remote host uses. Does anyone knows what might be the problem that this connection cannot be eastablished?

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• With dnsmasq as the DNS server, 'dig' and 'ping' succeed while 'nslookup' fails

  - by einpoklum

  I installed dnsmasq on a machine of mine (It's a Kubuntu 12.04 LTS), backed only by /etc/hosts (no connection to the Internet until later). Now, if I dig mymachine, I get 192.168.0.1, but if I try to nslookup mymachine, I get: >> connection timed out; no servers could be reached Tried also nslookup mymachine.mynicedomain.org - didn't work either. pinging (Edit:) succeeds. This happens both on the server machine itself and on other machines on the network. How can I the DNS lookups to work? What problem is preventing nslookup from succeeding? Additional Information In the server's /etc/hosts: 192.168.0.1 mymachine In the server's nsswitch.conf: hosts: files mdns4_mininal [NOTFOUND=return] dns mdns4 (admittedly, this is a bit weird; but I also tried: hosts: files dns instead, with the same effect) In resolv.conf (which is generated by dnsmasq): nameserver 127.0.0.1 search mynicedomain.org In the server's /etc/hosts.allow: domain: ALL In the other machines' /etc/resolv.conf (this is set by the DHCP client): nameserver 192.168.0.1 search mynicedomain.org Relevant netstat output on the server: Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN tcp 0 0 192.168.0.1:53 0.0.0.0:* LISTEN Finally, here's the ipconfig output from one of the client machines on the network (running Windows 7): Connection-specific DNS Suffix . : mynicedomain.org Description . . . . . . . . . . . : Intel(R) 82579LM Gigabit Network Connection Physical Address. . . . . . . . . : 12-34-56-78-9A-BC DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.0.50(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : Sunday, October 20th 2013 16:20:25 Lease Expires . . . . . . . . . . : Sunday, October 20th 2013 18:20:24 Default Gateway . . . . . . . . . : 192.168.0.1 DHCP Server . . . . . . . . . . . : 192.168.0.1 DNS Servers . . . . . . . . . . . : 192.168.0.1 NetBIOS over Tcpip. . . . . . . . : Enabled Notes: May be related to this question.

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• Problems to connect Java visualVM to a EC2-instance

  - by kasten

  I'm trying to profile a AWS EC2 instance via visualVM. The instance is in a securitygroup which allows all connections and i'm runing jstatd with a grant codebase "file:${java.home}/../lib/tools.jar" { permission java.security.AllPermission; }; policy on it. When i try to connect from my local machine with visulVM nothing happens. When i use jps i get the following response $ jps -l -m -v rmi://ec2-xxx-xxx-xxx-xxx.compute-1.amazonaws.com Error communicating with remote host: Connection refused to host: xxx.xxx.xxx.xxx; nested exception is: java.net.ConnectException: Connection timed out But i can ssh into the instance and use jps locally. Has anyone a pointer in which direction i can debug further?

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• Monitor network connectivity in WP7 apps

  - by Daniel Moth

  Most interesting Windows Phone apps rely on some network service for their functionality. So at some point in your app you may need to know programmatically if there is network connection available or not. For example, the Translator by Moth app relies on the Bing Translation service for translations. When a request for translation (text or voice) is made, the network call may fail. The failure reason is not evident from any of the return results, so I check the connection to see if it is present. Dependent on that, a different message is shown to the user. Before the translation phase is even reached, at the app start up time the Bing service is queried for its list of  languages; in that case I don't want to show the user a message and instead want to be notified when the network is available in order to send the query out again. So for those two requirements (which I imagine are common in other apps) I wrote a simple wrapper MyNetwork static class to the framework APIs: Call once MyNetwork.MonitorNetworkAvailability() method so it monitors the network change At any time check the MyNetwork.IsConnected property to check for network presence Subscribe to its MyNetwork.ConnectionEstablished event Optionally, during debugging use its MyNetwork.ChangeStatus method to simulate a change in network status As usual, there may be better ways to achieve this, but this class works perfectly for my scenarios. You can download the code here: MyNetworks.cs. Comments about this post welcome at the original blog.

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• Can I set up a 2nd home wireless router, with router2 connecting to the internet through a desktop which is wirelessly connected to router1?

  - by gil b.

  Hi, I apologize for the crudeness of my MSPaint drawing, but please view my diagram of what I'd like to accomplish: Proposed home network architecture Currently, all devices are connected to 1 wireless router. I would like to make my own subnet, with a box in-between my subnet and the shared wireless router, so that I can learn about IDS, traffic analysis, etc. I was also given a cisco PIX firewall to play around with, and it'd be an added bonus if I could incorporate that into my network. The reason for this proposed architecture is so that I can monitor all MY traffic, without seeing anything going on with my roommates' traffic. my MAIN Question is, is it possible to have my desktop connect to the wireless router with internet via wireless card AND share that connection via the ethernet card, hooked to wireless router 2? cable modem - wireless router - desktop pc connected wirelessly - wireless router 2 getting internet from wired connection to desktop pc - laptops connected wirelessly The PIX can be left out for now, but I'm wondering if it could eventually be incorporated? THANKS!

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• Virtual Hosting in RHEL 5

  - by Kumar P

  We have a RHEL 5 Linux server with a few Windows XP clients. We provide web development in PHP. Now my developers as for common local PHP server for keep their projects in same place. Currently the proxy server and Samba sharing are running on the RHEL 5 server. I installed httpd, PHP and MySQL in the server. And I would like to configure virtual hosting too for LAN. What I want do for it? We have 2 Ethernet ports in the server, 1 for local connections and another one for Internet. Internet is provided by an ADSL provider. (192.168.0.0 series for ADSL modem connection and 10.1.1.0 for the LAN connection. If I want to use virtual hosting, do I need to setup local DNS server? My requirements are: setup PHP with MySQL server for local clients with multiple hosting, without disturbing proxy and Samba.

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• Installing router - failed to verify router settings

  - by Andi

  I'm trying to install a TP-Link wireless router. I am using a modem an have a PPPoE connection. I connected the router to the computer and the modem, but in the last step of the Easy Setup it says " Failed to verify router settings. 1. Please check the WAN connection type and parameters. 2. Please check your connectivity and retry." The internet works fine if i connect the modem directly to the computer. When I connect the computer to the router, the wireless network is detected by other devices, but cannot be accessed. I accessed the router settings, and everything seems normal, except that it just says "Connecting...". It never manages to connect to the internet. I tried restarting the router and several walkthroughs on the web, but I couldn't get it to work.

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• Write DAX queries in Report Builder #ssrs #dax #ssas #tabular

  - by Marco Russo (SQLBI)

  If you use Report Builder with Reporting Services, you can use DAX queries even if the editor for Analysis Services provider does not support DAX syntax. In fact, the DMX editor that you can use in Visual Studio editor of Reporting Services (see a previous post on that), is not available in Report Builder. However, as Sagar Salvi commented in this Microsoft Connect entry, you can use the DAX query text in the query of a Dataset by using the OLE DB provider instead of the Analysis Services one. I think it’s a good idea to show the steps required. First, create a DataSet using the OLE DB connection type, and provide the connection string the provider (Provider), the server name (Data Source) and the database name (Initial Catalog), such as: Provider=MSOLAP;Data Source=SERVERNAME\\TABULAR;Initial Catalog=AdventureWorks Tabular Model SQL 2012 Then, create a Dataset using the data source previously defined, select the Text query type, and write the DAX code in the Query pane: You can also use the Query Designer window, that doesn’t provide any particular help in writing the DAX query, but at least can show a preview of the result of the query execution. I hope DAX will get better editors in the future… in the meantime, remember you can use DAX Studio to write and test your DAX queries, and DAX Formatter to improve their readability!If you want to learn the DAX Query Language, I suggest you watching my video Data Analysis Expressions as a Query Language on Project Botticelli!

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• Malicious program changing my DNSs

  - by julio.alegria

  Some weeks ago I started having problems with my internet connection, it was extremely slow and suddently some websites (specifically gmail, facebook, youtube and twitter) started failing to connect, while the rest connect normally. Some days after, those same websites started showing me a message in portuguese: "Nova atualização disponível" whenever I tried to connect and a .exe file started downloading ("internet_update.exe" or something like that). That's when I freaked out! It was definitely a virus or something like that, but it was really weird because I never had a problem like that (I run Linux). So I turned on my old PC (running Windows XP) and it turned out it had the same problem! the same message was showed whenever I tried to connect one of those specific websites, while the rest loaded without problems. Even in my Android smarthphone the same message was showed. So it was obvious that the problem was not in a particular machine but in the router itself. So I started googling and I found some information, unfortunately I only found some in spanish, so I will make you a short summary: It is a new banking trojan developed specifically to infect and collect information from Brasilian banks. Apparently now it has expanded to Argentina and Peru. So how does it work? It spreads through social networks (videos, links, ...) and then it "takes control" of your internet connection by changing the values of your DNSs. More specifically, it changes the Primary DNS to one of this IPs: 108.170.13.38, 66.7.216.122 or 63.143.43.154 and the Secondary DNS to 8.8.8.8, this secondary DNS is actually the Google Public DNS, and it is configured this way so that your internet connection continue working properly and the user does not notice anything. The important part here is that because no download or install has been made in your machine, no antivirus will notice any change. After your DNSs have been changed, the trojan controls every single website you connect to and this way they steal your bank information. So after reading about this I accesed to my router and I restored my Primary and Secondary DNSs to their proper values, but one day after I had the same problem again. This is actually a 50% warning post - 50% help me! post. So, here comes the question: Is there any possible way to prevent my DNSs of being changed?

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• Problems connecting Centos to the network when running in VMWare

  - by Sakin

  Hi, I installed CentOs on VMware running on windows XP. When trying to configure it to connect to the internet, I get an error message when trying to bring up the network interface: [root@VMLinux ~]# /et/init.d/network start Bringing up loopback interface: [ OK ] Bringing up interface eth0: Determining IP information for eth0... failed [FAILED] VM is running on a machine that has access to the network, I tried it on two different networks that have DHCP enabled. I tried to configure VMWare to use a bridged connection as well as NAT connection. An image of Ubuntu runs fine on the same VMware. What am I missing here? Thanks.

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• HDMI video output not working for external monitor

  - by user291852

  I have installed from scratch ubuntu GNOME 14.04 with gnome-flashback on my old HP HDX 16 laptop (core 2 duo p8600 + nvidia GT9600M + 4GB of ram) and I have problems with the HDMI output (I use it to extend my desktop on a dell U2412M 1920x1200 monitor). In the following I summarize the configurations that I have tried: Using the open source nouveau drivers, only the laptop monitor works, no signal from the external monitor connected to the HDMI output. However, the output of the xrandr command show that the HDMI output is connected with the correct resolution 1920x1200 (I find this thing really weird). Nouveau drivers with VGA connection works without problems on the external monitor, but the image is blurry compared to the HDMI connection. Using the nvidia drivers (I have tried different versions: nvidia-331-updates and the xorg-edgers versions nvidia-334 and nvidia-337) the HDMI output works, but I have system instabilities, random crashes and display freezes. I can't even enter in terminal mode with ctrl-alt-f1, so I have to manually shut down the laptop with the power button. I really would like to use the HDMI output with the nouveau drivers to avoid the system instabilities that I experienced with the nvidia drivers, but I can't figure out how to make it works. Alessandro

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• TIME column in TOP command for mysql

  - by michael

  When I run top on my database server I get that mysqld has been running for 4:00.51 and it continues to go up. I assume this means that one process with mysql has been running this long from other posts on here. Its not set to cumulative mode as best I can tell as the heading looks like it would change to CTIME if that be the case. What I'm wondering is if this is normal for a site that makes a lot of individual connections using PHP. I shouldn't have any long running processes that would hold on to a mysql connection for this long, only seconds at most. Am I incorrect to assume that this time relates to one connection/process running? I think usually I see it flash up and away on the TOP, not just stay there with this number increasing.

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• Problems during binding SpotLight to the instance

  - by Rodnower

  Hello, I have RAC Oracle11 installation built from 2 nodes running on Linux Red Hat OS. Now, I try to make connection from SpotLight running on Windows 7 to the Instance of one of nodes (TNS name of it is: LIBD1) This what I do: Make new connection - give user with SYS permission - connect - get error about that, that user not configured - User Configuration Wizard opens - give SYS as user with sysdba permissions (real SYS not other user with SYS permission) - check "configure new user" option - give new user name - next And I get error: DBMS_SQL access.denied. What I do wrong? Thank you for ahead.

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• Access Bind9 DNS in Virtualbox on Host

  - by Philipp Melab

  I've set up a Ubuntu 10.04 Virtual Box with a Bind9 DNS server. The Box has a NAT Network connection for internet access and a host-only adapter for static ip connections from the host (OSX Lion). Thats the only way i managed to get internet and static ip inside the box, guess there is a better one ... The DNS works fine from inside the virtualbox, but not from the host. The http and ftp on the guest system is accessible via both addresses, so connection between host and guest are fine i guess. I tried to add both IP's as name servers. I'm completely new to Bind9 and DNS configuration. Anybody has a hint for me whats wrong? Or how i have to configure the DNS server?

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• What is the proper way to install the 3.4 kernel?

  - by Marcelo Ruiz

  Kernel 3.2 has an annoying error for my wireless card (rtl8192se-b) that makes the connection drop and/or prevents the card to make a connection to the wireless router. Dealing with it was very frustrating until I found out the bug was corrected in 3.4. I downloaded: linux-headers-3.4.0-030400_3.4.0-030400.201205210521_all.deb linux-headers-3.4.0-030400_3.4.0-030400.201205210521_all.deb linux-image-3.4.0-030400-generic_3.4.0-030400.201205210521_amd64.deb and installed with: sudo dpkg -i * Now the wireless works fine, but I have two problems that cannot solve. The first one is minor: plymouth would not start at all. But if I boot with the 3.2 kernel it works fine. The second one is serious: sometimes the computer won't shut down or reboot. The X server terminates but the computer shows part of my grub background and will stay there forever using 100% of the CPU. I have a Toshiba Qosmio with an Core i7 and nvidia graphic card (using nvidia-current). During one shutdown, I briefly read a message that said that the virtualbox module couldn't be unloaded from the kernel. I tried to solve this by removing and purging virtualbox and installing it back. I don't see the message anymore, but sometimes the computer won't shutdown nor reboot. Am I missing something to properly configure the new kernels? Thanks!

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• What ports does Advantage Database Server need?

  - by asherber

  I have an application which uses ADS and I am attempting to deploy it in a Windows network environment with a rather restrictive firewall. I am having a problem configuring firewall ports appropriately. ADS lives on \\server, and it's listening on port 1234. When \\client tries to connect to \\server\tables, I get Error 6420 (Discovery process failed). When \client tries to connect to \\server:1234\tables, I get error 6097, bad IP address specified in the connection path. \\server is pingable from \\client, and I can telnet to \server:1234. If I try to connect from a client machine inside the firewall, either connection path works fine. It seems there must be something else I need to open in the firewall. Any ideas? Thanks, Aaron. Edit: I should have specified that the firewall is open to \\server:1234 specifically for TCP traffic. Is UDP involved here in some way?

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• apache2 mod_proxy without 301 moved permanently?

  - by Guy Sensei

  Is it possible to not send a 301 moved permanently response to the client when using mod_proxy? I would like the client to deal with the reverse proxy as opaquely as possible. My Virtual Host Settings- relevant snippet ProxyPreserveHost On ProxyPass /GTM http://192.168.1.27/GTM ProxyPassReverse /GTM http://192.168.1.27/GTM wget localhost/GTM --2011-09-27 21:54:22-- localhost/GTM Resolving localhost... ::1, 127.0.0.1 Connecting to localhost|::1|:80... failed: Connection refused. Connecting to localhost|127.0.0.1|:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: localhost/GTM/ [following] --2011-09-27 21:54:22-- localhost/GTM/ Reusing existing connection to localhost:80. HTTP request sent, awaiting response... 200 OK

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