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  • port forwarding on windows server 2008 to Hyper-v machines

    - by This is it
    I have a host machine (win server 2008 R2) with several Hyper-V virtual machines. I want to be able to redirect certain ports of host to virtual machines. There is virtual network connection between host and virtual machines (192.168.10.xxx). Host is also attached to external network (10.10.10.123). Virtual machines have several other networks between them. E.g., I want to be able to redirect traffic from 10.10.10.123 12345 to 192.168.10.321 54321 I tried RRAS in windows server but for it to work Default gateway to 10.10.10.123 has to be set in virtual machines. Virtual machines can not be on external network.

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  • Port forwarding for samba

    - by EternallyGreen
    Alright, here's the setup: Internet - Modem - WRT54G - hubs - winxp workstations & linux smb server. Its basically a home-style distributed internet connection setup, except its at a school. What I want is remote, offsite smb access. I figured I'd need to find out which ports need forwarding and then forward them to the server on the router. I'm told in another question on SF that multiple ports will need forwarding, and it gets somewhat complicated. One of the things I need to know is which ports require forwarding for this, and what complications or vulnerabilities could arise from this. Any additional information you think I should have before doing this would be great. I'm told SMB doesn't support encryption, which is fine. Given I set up authentication/access control, all this means is that once one of my users authenticates and starts downloading data, the unencrypted traffic could be intercepted and read by a MITM, correct? Given that that's the only problem arising from lack of encryption, this is of no concern to me. I suppose that it could also mean a MITM injecting false data into the data stream, eg: user requests file A, MITM intercepts and replaces the contents of file A with some false data. This isn't really an issue either, because my users would know that something was wrong, and its not likely anyone would have incentive to do this anyway. Another thing I've been informed of is Microsoft's poor implementation of SMB, and its crap track record for security. Does this apply if only the client-end is MS? My server is linux.

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  • ssh port forwarding / security risk

    - by jcooper
    Hi there, I want to access a web application running on a web server behind my office firewall from an external machine. We have a bastion host running sshd that is accessible from the Internet. I want to know if this solution is a bad idea: Create an account on the bastion host with shell=/bin/false and no password ('testuser') Create a ssh RSA key on the external machine Add the public RSA key to the testuser's authorized_keys file ssh to the bastion host from the external host using: ssh -N 8888:targethost:80 run my tests from the external host shut down the ssh tunnel I understand that if my RSA private key were compromised then someone could ssh to the bastion host. But are there other reasons this solution is a bad idea? thank you!

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  • SMTP port open - but not open

    - by Frederik Nielsen
    As some of you might know, I am setting up an exchange server. Now I ran into another problem: I cannot connect to the SMTP service from outside the server! The ports are opened in the gateway device (a ZyXEL USG50), Windows firewall is off. I see the packets travekl through the ZyXEL firewall, and I can also see the packets with wireshark on the server, so I know they are getting all the way in to the server. I also know it receives them, and sends out the reply - and this is where things go bad! Analyzing with wireshark, I get these errors in the return packets: Header checksum: 0x0000 [incorrect, should be 0x0779 (may be caused by "IP checksum offload"?)] And: Acknowledgment Number: 0x8e3337d1 [should be 0x00000000 because ACK flag is not set] What the (sorry my French) hell is going on? I really cant figure it out.. Thanks in advance.

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  • Why do I see router and not my real IIS?

    - by Tim Tom
    I am trying to access IIS through web but unable to do so. Basically I have a router (which functions as router and modem) that is given by ISP and I have another router connected to the router given by ISP. My ISP's router can be visited through 192.168.0.1 and the router that I connected to ISP's router can be visited through 192.168.1.1 Please see my ISP's router: As you can see I have DMZ enabled for my router of 192.168.1.1 Now please see my router of 192.168.1.1: As you can see I added a virtual server for port 80 where 192.168.1.125 is my private IP. I rebooted both of my modems an tried to visit my IP from: http://www.whatsmyip.org/ and after doing so, when I type my live IP I still see my router of 192.168.0.1 instead of my IIS. What am I missing? Note: I have disabled Firewall on both of the routers. Any help would be appreciated.

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  • Why do I see router and not my real IIS?

    - by Tim Tom
    I am trying to access IIS through web but unable to do so. Basically I have a router (which functions as router and modem) that is given by ISP and I have another router connected to the router given by ISP. My ISP's router can be visited through 192.168.0.1 and the router that I connected to ISP's router can be visited through 192.168.1.1 Please see my ISP's router: As you can see I have DMZ enabled for my router of 192.168.1.1 Now please see my router of 192.168.1.1: As you can see I added a virtual server for port 80 where 192.168.1.125 is my private IP. I rebooted both of my modems an tried to visit my IP from: http://www.whatsmyip.org/ and after doing so, when I type my live IP I still see my router of 192.168.0.1 instead of my IIS. What am I missing? Note: I have disabled Firewall on both of the routers. Any help would be appreciated.

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  • Getting packets from one port to another on a Dell PowerConnect 2824 switch

    - by Arvo Bowen
    I have a dell PowerConnect 2824 and I have a cat 5 cable connected from port 1 to port 23. Port 1 is reserved for VLAN 1 (the only VLAN that can manage the switch) and port 18-23 belong to VLAN 112. I currently have the switch setup with ip 10.71.3.5/27 and a test machine plugged into port 22 with IP address 10.71.3.30/27. For some reason I can not ping 10.71.3.5 from my test machine (10.71.3.30). Note: When I try to ping the server plugged into port 21 (IP: 10.71.3.7/27) also VLAN 112, I get responses just fine. Note: When I plug my test machine directly into port 1, I can ping 10.71.3.5 just fine. Quick Recap: Switch IP: 10.71.3.5 Port 1 - dedicated to management - (VLAN1) Port 21 - SERVER (10.71.3.7/27) - (VLAN112) Port 22 - test machine (10.71.3.30/27) - (VLAN112) Port 23 - dedicated to management (to hop over to VLAN 1 from VLAN 112) - (VLAN112)

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  • Port Forwarding: Why do my local sites on 80 work but not those on 8080?

    - by Chadworthington
    I setup my router to forward port 80 to the PC hosting my web site. As a result, I am able to access this url (Don't bother clicking on it, it's just an example): http://my.url.com/ When i click on this link, it works: http://localhost:8080/tfs/web/ I also forward port 8080 to the same web server box But when I try to access this url I get the eror "Page Cannot be displayed:" http://my.url.com:8080/tfs/web/ I fwded port 8080 the same way I fwded port 80. I also turned off Windows Firewall, in case it was blocking port 8080. Any theories why port 80 works but 8080 does not?

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  • how to portforward port 7300 from server A to server B

    - by Patrick van Hout
    hi, We are using Stunnel. But want to replace it is with an iptables entry if possible. 192.168.123.122:7300 need to be forwarded to 192.168.123.188:7300. So in iptables I set these two entries: [root@dev ~]# iptables -t nat -A PREROUTING -p tcp --dport 7300 -j DNAT --to-destination 192.168.123.188:7300 [root@dev ~]# iptables -A FORWARD -m state -p tcp -d 192.168.123.188 --dport 7300 --state NEW,ESTABLISHED,RELATED -j ACCEPT But it isn't working. I did check that /proc/sys/net/ipv4/conf/eth0/forwarding has the value "1" inside. Any tips or hints? thanks, Patrick

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  • Users getting port 8080?

    - by domainking
    I tested several times, running using different internet browser (IE, FF, Chrome, Safari and Opera), none of those getting 8080. Recently I got some complaints from my users, saying my website giving errors:[my website ip]:8080 error. What is that error? And how do I resolve it?

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  • What's port 1283?

    - by kbluck
    I see a lot of connection attempts to 1283/tcp on my firewall from a client computer to a Windows Server 2008 Domain Controller. What exactly is this traffic? Something to do with NetBIOS, perhaps?

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  • Apache keeps adding 8080 port by itself while I'm telling it to use 80 only

    - by laggingreflex
    Here's my httpd.conf. Inside it, I have the following in place #Listen 12.34.56.78:80 #Listen 127.0.0.1:8887 Listen 127.0.0.1:80 #Listen 127.0.0.1:8080 Listen 192.168.1.4:80 and I have a .htaccess RewriteEngine On RewriteRule ^wordpress(.*)$ wp-oct/live$1 in my local www folder with wordpress installed in /wp-oct/live/ to which /wordpress/ is supposed to redirect to, but it doesn't. It instead redirects to http://localhost:8080/wp-oct/live/. Why is 8080 showing up?

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  • Problems forwarding port 3306 on iptables with CentOS

    - by BoDiE2003
    Im trying to add a forward to the mysql server at 200.58.126.52 to allow the access from 200.58.125.39, and Im using the following rules (its my whole iptables of the VPS of my hosting). I can connect locally at the server that holds the mysql service as localhost, but not from outside. Can someone check if the following rules are fine? Thank you # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :RH-Firewall-1-INPUT - [0:0] -A INPUT -j RH-Firewall-1-INPUT -A FORWARD -j RH-Firewall-1-INPUT -A RH-Firewall-1-INPUT -i lo -j ACCEPT -A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT -A RH-Firewall-1-INPUT -p 50 -j ACCEPT -A RH-Firewall-1-INPUT -p 51 -j ACCEPT -A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT -A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp -s 200.58.125.39 --dport 3306 -j ACCEPT -A INPUT -p tcp -s 200.58.125.39 --sport 1024:65535 -d localhost --dport 3306 -m state --state NEW,ESTABLISHED -j ACCEPT -A OUTPUT -p tcp -s localhost --sport 3306 -d 200.58.125.39 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT COMMIT And this is the output of the connection trial. [root@qwhosti /home/qwhosti/public_html/admin/config] # mysql -u user_db -p -h 200.58.126.52 Enter password: ERROR 2003 (HY000): Can't connect to MySQL server on '200.58.126.52' (113)

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  • USB port causing device problems after new motherboard upgrade

    - by enbuyukfener
    I'm looking into a PC with an issue with one of the front USB ports (perhaps both). It was working before a motherboard upgrade but since then, a USB drive was inserted, overheated and does not appear to be working. Then a phone (with USB charging) was plugged in, and the phone OS suspended. Removing and re-inserting the battery led to the phone (and hence battery) working, however the battery no longer charges (including with a wall charger). It seems too much to be a coincidence and am wondering what the issue may be? Ideas so far are short circuiting, or over-current to the USB ports. Note: Did not occur to me, so details are not 100% accurate or complete. Feel free to ask for missing info that I may have forgotten though.

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  • Port Forwarding Using iptables on Ubuntu

    - by user141610
    This is the scenario. I have configured a web-server in MUX. Now I want to access that web-server from Internet. Ubuntu box has two interfaces, One is connected to WAN (Public IP) and another one is connected to MUX (Private IP). MUX has no option to insert default gateway. iptables -t nat -A PREROUTING -p tcp -i eth0 -d 103.x.x.x --dport 8001 -j DNAT --to-destination 192.168.1.2:8080 iptables -A FORWARD -p tcp -d 192.168.1.2 --dport 8080 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT It does not work. Thanks...

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  • Why is the System process listening on Port 443?

    - by ClearsTheScreen
    I am having problems starting my apache server, because port 443 is already in use. It turns out, the system process (PID 4) uses the port 443. I don't have IIS installed, the services.msc shows (predicatbly) no Exchange server running, nor WWW-Services, nor IIS. I have no idea how to find out what service uses that port short of just disabling each service one after the other, and I am not even sure that would help. I would be grateful if someone could point me towards how I can get my SSL port back, thank you :) P.S.: Of course "just switch apache to another port for SSL" would solve the problem of not being able to start apache. But I'd still like to know what is so insistent about hogging port 443. :)

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  • Unix Shell/SSH config to allow TCP port forwarding without showing a command prompt

    - by Raphael K
    I'm running a Debian Linux. I'd like to have a user account that is able to connect via SSH for TCP-forwarding only, without a command prompt. e.g the following would work (from a remote computer): ssh -D1234 user@myhost but no command prompt would appear. Using a shell like /bin/false or /sbin/nologin is too restrictive as it doesn't even allow the user to log in. A shell that only allows the "exit" or Ctrl+D commands would do the job. I know that something similar is possible to allow only SFTP, but I can't find the equivalent for TCP forwarding. Thanks

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  • Port-Forwarding in Virtual Box

    - by davidzaz
    I have Virtual Box setup with the following commands: vboxmanage setextradata myVm "VBoxInternal/Devices/pcnet/0/LUN#0/Config/transfer/HostPort" 50000 vboxmanage setextradata myVm `"VBoxInternal/Devices/pcnet/0/LUN#0/Config/transfer/GuestPort" 50000 vboxmanage setextradata myVm "VBoxInternal/Devices/pcnet/0/LUN#0/Config/transfer/Protocol" TCP On the host machine, the following command times out: telnet localhost 50000 What am I doing wrong? The above command does work on the guest machine.

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  • re-direct SSL pages using header statement based on port

    - by bob's your brother
    I found this in the header.php file of a e-commerce site. Is this better done in a .htaccess file. Also what would happen to any post parameters that get caught in the header statement. // flip between secure and non-secure pages $uri = $_SERVER['REQUEST_URI']; // move to secure SSL pages if required if (substr($uri,1,12) == "registration") { if($_SERVER['SERVER_PORT'] != 443) { header("HTTP/1.1 301 Moved Permanently"); header("Location: https://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']); exit(); } } // otherwise us regular non-SSL pages else { if($_SERVER['SERVER_PORT'] == 443) { header("HTTP/1.1 301 Moved Permanently"); header("Location: http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']); exit(); } }

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  • Samba port forwarding?

    - by Robert
    Here's my situation: On my network, most of the clients are on an outside router. Router 1 192.168.1.1 | | - Client | Router 2 192.168.1.2 to router 1, | 192.168.2.1 to clients within | Samba server - 192.168.2.25 I cannot figure out how to get clients under router 1 to access the Samba shares in router 2. I have forwarded ports 139 and 445 to the appropriate machine in router 2 but machines in router 1 still cannot access the server. How would I set this up?

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  • Why is the System process listening on Port 443?

    - by Cornelius
    I am having problems starting my apache server, because port 443 is already in use. It turns out, the system process (PID 4) uses the port 443. I don't have IIS installed, the services.msc shows (predicatbly) no Exchange server running, nor WWW-Services, nor IIS. I have no idea how to find out what service uses that port short of just disabling each service one after the other, and I am not even sure that would help. I would be grateful if someone could point me towards how I can get my SSL port back, thank you :) P.S.: Of course "just switch apache to another port for SSL" would solve the problem of not being able to start apache. But I'd still like to know what is so insistent about hogging port 443. :) Edit: I by now took the 'hard route' and disabled services one after the other. It turned out that the "Routing and RAS" service was the culprit. Thank you all for the valuable input and the new tools in the combat against "WTF does my system do now".

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  • Cannot Enter Repro Admin Web Interface at Port 5080

    - by aqua
    I have followed the instructions on this website www.rtcquickstart.org to set up my firewall, DNS settings, TLS, and have installed the TURN server and repro proxy as instructed, and have restarted repro. However, I am not able to access the web interface of repro on port 5080, either at localhost:5080 / 127.0.0.1:5080 or at the server's IP address: IPADDRESS:5080 (I have set the server's IP for binding in repro.config). I get the browser error message: 'Unable to connect to server' whenever trying to connect to the web interface via port 5080. I initially had Apache2 installed, which loaded pages correctly at port 80 / address root, and when checked it 'listened' at port 5080 after it was configured in /etc/apache2/ports.conf, however the repro web interface still did not work at port 5080. I have tried uninstalling Apache2 in case that was conflicting with repro's web server, but the problem persists, and testing port 5080 now shows that nothing is 'listening' on port 5080. I have tried reinstalling / purging repro but it has not helped. My router is correctly set to allow all ports; port 5080 is open and forwarding correctly. I can connect to the internet and ping all websites through the server and everything else is working correctly. I would be gateful if anyone could offer advice on how to solve this problem.

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  • Create a virtual serial port for widcomm stack under 32feet

    - by i13m
    Hi, all Currently I am doing a project involves a bluetooth communication setup between a PDA and a small embedded device. This small embedded device can only be communicated with a virtual serial port over a bluetooth link. The PDA is the ipaq running with windows mobile 6, and I am using c#. I had done a program which can communication with the serial port over bluetooth. But the only issue is every time I run this program, I have to active the bluetooth radio, and manually pairing this device with the pda via the bluetooth manager. What I want to do is when running this program, it can establish the bluetooth connection between the pda and the embedded module. So I am using functions from the 32feet prject. This is one issue is I cant make the virutal serial port part, as I think the 32feet project can only make virual serial ports for the window bluetooth stack but not the widcomm bluetooth stact, which the ipaq is using. Therefore, are there any existing c# classes or stacks that can make virtual serial port under widcomm for windows mobile 6. Thanks

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  • Opening port 80 with Java application on Ubuntu

    - by Featheast
    What I need to do is running a Java application which is a RESTful service server side writtern by Restlet. And this service will be called by another app running on Google App Engine. Because of the restriction of GAE, every http call is limited to port 80 and 443 (http and https) with HttpUrlConnection class. As a result, I have to deploy my server side application on port 80 or 443. However, because the app is running on Ubuntu, and those ports under 1024 cannot be accessed by non-root user, then a Access Denied exception will be thrown when I run my app. The solutions that have come into my mind includs: Changing the security policy of JRE, which is the files resides in /lib/security/java.policy, to grantjava.net.SocketPermission "*.80" "listen, connect, accept, resolve" permission?However, neither using command line to include this file or overrides the content in JRE's java.policy file, the same exception keeps coming out. try to login as a root user, however because my unfamiliarity with Unix, I don't know how to do it. another solution I haven't try is to map all calls to 80 to a higher port like 1234, then I can deploy my app on 1234 without problem, and GAE call send request to port 80. But how to connect the missing gap is still a problem. Currently I am using a "hacking" method, which is to package the application into a jar file, and sudo running the jar file with root privilege. It works now, but definitely not appropriate in the real deployment environment. So if anyone have any idea about the solution, thanks very much!

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