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• Setup a vpn server with a static IP with NAT and port forwarding

  - by Lorenzo Pistone

  I have a Debian VPS with an assigned static IP. I want to setup a virtual interface (with an ip like 192.168..) on my laptop (Ubuntu, dynamic IP) linked to the remote VPS, so that if I bind sockets to it the traffic is tunneled to the VPS and sent to the Internet from there. Port forwarding must be available. This looks like a job for a VPN software, but I'm clueless about the pieces of software needed. Any advice?

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• DNS Records: Forwarding a port on my public domain

  - by marienbad

  I've set up an MX record for a local mailserver before, but I've never done this... I want to set up my public domain (registered by Dreamhost) to accept IPP (Internet Printing Protocol) jobs and send them to the IPP LaserJet printer on my home LAN. IPP uses port 631. What do I put in my DNS records?

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• Port forwarding with Windows Server 2008

  - by uttt

  I have Windows 2008 server. It works as a mail, ftp, web server. In my LAN there is other server and i want to reach this server with RDC from outside my lan, (example: domail.com:5555 - 192.168.0.2:3389). Is there any solution to forward this port using Windows Firewall?

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• Port forwarding not working properly

  - by sudo work

  I'm trying to host a small web server from my home network; however, I have not been able to successfully port forward ports to the local server. My current network topology looks like this: Cable Modem/Router - Secondary Wireless Router - Many computers (including server) The modem/router I'm using is a Cisco (Scientific Atlantic) DPC2100, provided by my ISP. The wireless router that I'm using as the central hub to my home network is a Linksys E3000. The computer being used as a server is running Ubuntu 10.04 Server Edition. The main issue is that I can't access the server remotely, using my WAN IP address. I have port forwarded my wireless router; however, I believe that I need to somehow set my modem to bridge mode. As far as I can tell though, this isn't possible. Here are the various IP address settings: DPC2100 WAN: 69.xxx.xxx.xxx Internal IP: 192.168.100.1 Internal Network: 192.168.7.0 E3000 IP Address: 192.168.7.2 Gateway: 192.168.7.1 Internal IP: 192.168.1.1 Internal Network: 192.168.1.0 Server IP Address: 192.168.1.123 Gateway: 192.168.1.1 Now I can do an nmap at various nodes, and here are the results (from the server): nmap localhost: 22,25,53,80,110,139,143,445,631,993,995,3306,5432,8080 open nmap 192.168.7.2: 22,25,80 (filtered),110,139,445 open (ports I have forwarded in the E3000)* nmap 69.xxx.xxx.xxx: 1720 open *For some reason, I can SSH into the server at 192.168.7.2, but not view the website. Here are also some other settings: /etc/hosts/ 127.0.0.1 localhost 127.0.1.1 servername ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters /etc/apache2/sites-available/default snippet <VirtualHost *:80> DocumentRoot /srv/www/ <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> ... </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> ... </Directory> ErrorLog /var/log/apache2/error.log LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> ... </Directory> </VirtualHost> Let me know if you need any other information; some stuff probably slipped my mind.

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• How to pipe the output of the serial port to a file in Windows

  - by Necip

  Hello guys, can somebody tell me how to pipe the output of the serial port to a file in Windows? In Linux the command would be: cat /dev/ttyS0 > /opt/logs/Serial.log Thanks in advance

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• Port-forwarding HTTPS web server

  - by James Moore

  I have port forwarded our front-facing IP to an internal HTTPS server. The browser does not connect. A wget command determines that the certificate is self-signed for the internal IP. Hence why the browser is refusing to display the page properly. What is the best-practice scenario for this sort of stuff? Thanks

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• SSH port forwarding. Connection refused [closed]

  - by Kein

  I want to make a port forward from my public server to my home pc, to connect through ssh. What have I done wrong? From home pc I run command: ssh -R 8022:127.0.0.1:22 remote.host Now when I try to connect with: ssh remote.host -p 8022 I get error "Connection refused" But when I connect to remote.host through ssh, and try to run: ssh localhost -p 8022 It connects to my home PC. How I can connect to home with one simple command? ssh remote.host -p 8022

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• Port forwarding with Windows Server 2008 [closed]

  - by uttt

  I have Windows 2008 server. It works as a mail, ftp, web server. In my LAN there is other server and i want to reach this server with RDC from outside my lan, (example: domail.com:5555 - 192.168.0.2:3389). Is there any solution to forward this port using Windows Firewall?

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• Browser http port-forwarding

  - by Kakao

  When using a browser like Firefox I need that any url of the domain example.com to have appended the port :8008. Not only when I type it at address bar but any where it is referenced within the served html page. All the other domains should be left as is. I know I can setup a proxy like Squid or use a pac file in a web site but I want it simpler if possible.

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• unable to connect site to different port

  - by JohnMerlino

  I have a domain was registered at godaddy named http://mysite.com/. I logged into godaddy and I went to All Products Domains Domain Management. I clicked on the appropriate domain and it took me to the Domain Details page. I clicked Launch under DNS Manager and it took me to the Zone File Editor. I noticed that notify.mysite.com was pointing to an IP address pointing to a dead server, so I switched it to an operating server. Then I pinged the domain to see where it was pointing to and it was correctly pointing to the working server. So I copied the default configuration under sites-available: sudo cp default notify.mysite.com. And then I made some edits to it to have it point to a different document root to serve files at a different port: Listen 1740 Listen 64.135.xx.xxx:1740 #I also tried this as well: NameVirtualHost 64.135.xx.xxx:1740 <VirtualHost 64.135.xx.xxx:1740> ServerAdmin [email protected] ServerName notify.mysite.com DocumentRoot /var/www/test/public <Directory /var/www/test/public> Order allow,deny allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/access.log combined </VirtualHost> Then I enabled the virtual host. Then I went to the document root and added an index.html file with some text in it. Then I restarted apache. The restart gave no errors. Then I type the correct domain in URL: http://notify.mysite.com:1740/ and I get: Oops! Google Chrome could not connect to notify.mysite.com:1740 Somehow it took out all my other sites. Now even the ones that were responding on port 80 are no longe responding, even though I did not touch the virtual hosts for them. I get this message now: Oops! Google Chrome could not connect to mysite.com However, ping responds: ping mysite.com PING mysite.com (64.135.12.134): 56 data bytes 64 bytes from 64.135.12.134: icmp_seq=0 ttl=49 time=20.839 ms 64 bytes from 64.135.12.134: icmp_seq=1 ttl=49 time=20.489 ms The result of telnet: $ telnet guarddoggps.com 80 Trying 64.135.12.134... telnet: connect to address 64.135.12.134: Connection refused telnet: Unable to connect to remote host

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• How to check 5222 port is open in cpanel hosting

  - by user42326

  I have a linux reseller account and i manage through WHM I have created a cpanel account for my client. He wanted the port 5222 to be open. I am not aware of it. How to check the status, and whether it is open or not? How to turn it on /off?

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• Any tool to test if my program can listen to certain port

  - by Stan

  OS: windows server 2003 Is there any tool that can test if a certain port is available for my program to listen to? Thanks.

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• Question on MacPorts comment: "manually remove the catalog entry for this port when you uninstall it

  I was recently installing Inkscape with MacPorts through a Mac OSX Leopard Terminal using "sudo port install inkscape" And during the search-and-download for dependencies, many of these type of comments were printed: ###################################################################### # As MacPorts does not currently have a post-deactivate hook, # you will need to ensure that you manually remove the catalog # entry for this port when you uninstall it. To do so, run # "xmlcatmgr remove nextCatalog /opt/local/share/xsl/docbook-xsl/catalog.xml". ###################################################################### Can anyone tell me what this message means? I do not understand what "it" refers to in the phrase 'ensure that you manually remove the catalog entry for this port when you uninstall it'. Does 'it' refer to a 'this port'? How is a port uninstalled? Mostly: When will I have to manually remove the catalog entry using the provided command? Also, what is a catalog entry? is that what appears when I type "sudo port search inkscape" ? I am kind of a MacPorts install n00b. Thanks very much for your time.

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• Serial port : Read data problem, not reading complete data

  - by Anuj Mehta

  Hi I have an application where I am sending data via serial port from PC1 (Java App) and reading that data in PC2 (C++ App). The problem that I am facing is that my PC2 (C++ App) is not able to read complete data sent by PC1 i.e. from my PC1 I am sending 190 bytes but PC2 is able to read close to 140 bytes though I am trying to read in a loop. Below is code snippet of my C++ App Open the connection to serial port serialfd = open( serialPortName.c_str(), O_RDWR | O_NOCTTY | O_NDELAY); if (serialfd == -1) { /* * Could not open the port. */ TRACE << "Unable to open port: " << serialPortName << endl; } else { TRACE << "Connected to serial port: " << serialPortName << endl; fcntl(serialfd, F_SETFL, 0); } Configure the Serial Port parameters struct termios options; /* * Get the current options for the port... */ tcgetattr(serialfd, &options); /* * Set the baud rates to 9600... */ cfsetispeed(&options, B38400); cfsetospeed(&options, B38400); /* * 8N1 * Data bits - 8 * Parity - None * Stop bits - 1 */ options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE; options.c_cflag |= CS8; /* * Enable hardware flow control */ options.c_cflag |= CRTSCTS; /* * Enable the receiver and set local mode... */ options.c_cflag |= (CLOCAL | CREAD); // Flush the earlier data tcflush(serialfd, TCIFLUSH); /* * Set the new options for the port... */ tcsetattr(serialfd, TCSANOW, &options); Now I am reading data const int MAXDATASIZE = 512; std::vector<char> m_vRequestBuf; char buffer[MAXDATASIZE]; int totalBytes = 0; fcntl(serialfd, F_SETFL, FNDELAY); while(1) { bytesRead = read(serialfd, &buffer, MAXDATASIZE); if(bytesRead == -1) { //Sleep for some time and read again usleep(900000); } else { totalBytes += bytesRead; //Add data read to vector for(int i =0; i < bytesRead; i++) { m_vRequestBuf.push_back(buffer[i]); } int newBytesRead = 0; //Now keep trying to read more data while(newBytesRead != -1) { //clear contents of buffer memset((void*)&buffer, 0, sizeof(char) * MAXDATASIZE); newBytesRead = read(serialfd, &buffer, MAXDATASIZE); totalBytes += newBytesRead; for(int j = 0; j < newBytesRead; j++) { m_vRequestBuf.push_back(buffer[j]); } }//inner while break; } //while

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• Cisco ASA bonding/teaming/port-channel capabilities

  - by Antoine Benkemoun

  Hello, This seemed to me like a really simple question that I would be able to answer by myself but I have not been able to find any info on this subject. I have a Cisco ASA 5510 which has 4 FastEthernet interfaces. I was wondering if it would be possible to use 2 or 3 of these interfaces as a port-channel in order to agregate bandwidth for multiple VLANs. I have found no info on the Cisco website nor on Google. Is this just a stupid/crazy idea or am I missing something ? Thank you in advance for your help, Antoine

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• WRT54G - how use port forwarding and VNC

  - by unknown (yahoo)

  Since I have my home network behind a WRT54G, the router has an external "real" IP address, and the PCs behind it have 192.168.xxx.xxx addresses. I would like to be able to control one of them remotely - preferably using UltraVNC, but I am open to suggestions. Since I can't directly address that PC from the internet, I figured I could address a port on my router and have the traffic forwarded to the PC (and the same in the reverse direction). Is that feasible? Can anyone tell me how to do it (or point me to an URL that does)? Thanks

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• How to specify VNC port number with Mac OS X built-in VNC client?

  - by Eonil

  Is it possible to specify VNC port number in built-in VNC client of Mac OS X? I'm trying to connect to Xen VPS machine with Finder's built-in VNC client. I used address like this. vnc://server:port But it fails because it uses another port, and Finder's built-in VNC cannot handle port number. As I know it handles the number after colon as display-number, not a port number. Is there a way to specify port number on the VNC client? Or any workaround for this? (port forwarding??? I have no idea about it...)

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• port to subdomain

  - by takeshin

  I have installed Hudson using apt-get, and the Hudson server is available on example.com:8080. For example.com I use standard port *:80 and some virtual hosts set up this way: # /etc/apache2/sites-enabled/subdomain.example.com <Virtualhost *:80> ServerName subdomain.example.com ... </Virtualhost> Here is info about Hudson process: /usr/bin/daemon --name=hudson --inherit --env=HUDSON_HOME=/var/lib/hudson --output=/var/log/hudson/hudson.log --pidfile=/var/run/hudson/hudson.pid -- /usr/bin/java -jar /usr/share/hudson/hudson.war --webroot=/var/run/hudson/war 987 ? Sl 1:08 /usr/bin/java -jar /usr/share/hudson/hudson.war --webroot=/var/run/hudson/war How should I forward: http:// example.com:8080 to: http:// hudson.example.com

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• How to specify VNC port number with Mac OS X built-in VNC client?

  - by Eonil

  Is it possible to specify VNC port number in built-in VNC client of Mac OS X? I'm trying to connect to Xen VPS machine with Finder's built-in VNC client. I used address like this. vnc://server:port But it fails because it uses another port, and Finder's built-in VNC cannot handle port number. As I know it handles the number after colon as display-number, not a port number. Is there a way to specify port number on the VNC client? Or any workaround for this? (port forwarding??? I have no idea about it...)

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• Forward a port with modem (with built-in but disabled router) + a separate router

  - by Youn

  I have a Motorola SBG6580 that is a modem and a wireless router in one. However, the wireless router part was bad so I disabled it and got a separate wireless router. I can go into the configuration pages of both the modem and the router now, and I'm confused as to which device needs to be configured for port-forwarding. I have a raspberry pi that I want to set up as a webserver. Do I configure the router, the modem, or both? Right now, the SBG6580's 1st LAN is connected to the wireless router's WAN, and the internet is working well. Note that the SBG6580 only has 4 ports, and I'm assuming they're LAN,as they are not labeled.

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• Not able to connect to perforce server outside of localhost

  - by bobber205

  My setup is a Qwest PK5000 router with a Linksys router running Tomato. I have DMZ pointed towards my router. (The server is on the tomato router). I tried my applications that open up sockets and Utorrent (port 6883) and I ended having to do advanced port forwarding and forward specific ports in addition to having DMZ on my router. The problem is that I cannot connect to perforce when on another machine on the LAN or off. Any ideas? :) Thanks!

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• Serial port access errors in WINE

  - by goldenmean

  Hello, I have a setup in which I use a USB serial adapter + some application which sends and receives data using that serial usb. But this setup which works on a Windows, or even in a VMWare Virtual windows, does not work under WINE. IT transmits data but i cannot receive data. The cable and the applications are same as in the working and non-working scenarios. I guess The fact that the application works over the USB serial cable just as fine under Virtual Windows(VMware running on linux) by mapping /dev/ttyUSB to the com port, no external software/DLL needed, means it does not need any specific driver. (Am I correct in this assumption that application doesnt need any driver?) (I also tried with a different setup(different USB serial adapter + different application under WINE, but even that does not work under WINE, but it works fine under WIndows/Virtual Windows) How can I get it working under WINE? Any pointers appreciated.

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• Multi serial devices on one port

  - by adopilot

  I am developing one software for managing parking lot. System is designed to use four HID RFID devices for authorization clients on gates. Each device should be connected to server by Serial port RS232. Now I wondering is there some device or method to join all that devices on one device and after that to I have only one RS232 cable connected to server. My problem is in that RFID card readers are simple (stupid) devices and there I am not able to change anything, but Ill like to know from which specific device is coming input. What Ill want to do with that new device which need to join four readers is to add suffix or prefix to string that sent from RFID card reader. So I can identify device that is sending card number to my server. I am developing my system on Win platforms.

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• Windows Server 2003 Router with PortForwarding

  - by jM2.me

  Hello, I am owning a small company and we have purchased a server to setup few server applications on it as well as other software. We would like to setup our network in following way Internet<-WindowsServer2003 as router<-Switch<-Office Computers Server has two nic interfaces and we have 24ports 1GB network switch connected to one nic and internet connection to another nic. Our ISP is Frontier and we have Fios 25/25. We get network cable out of ONT box directly connected to our server. There are no modems/routers. Setting up DHCP on windows 2003 is easy job but we would like to have the ability to port forward some ports from office computers. I have some knowledge in networking but not as much. How could I setup FHCP server on win2k3 with the ability to port forward some ports to office computers? Thank you for your time

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• Port Forwarding for Remote Desktop

  - by Vaibhav Bajpai

  I have two Mac notebooks at home, I have assigned them static private IPs. I have also set my router to a DynDNS address, which updates everytime my router gets a new public IP. I have enabled Screen Sharing on both notebooks. I can successfully goto my router webpage using the DynDNS address. I understand I need to port-forward to get Screen Sharing to work from outside. Lets assume, notebooks have private IP 192.168.1.2 and 192.168.1.3 I am kind of lost here, would appreciate some help (I need to be able remote desktop to both notebooks)

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