VNC, port 5900, help

I want to set up a vnc connection to use my computer through my iphone.  When I run the program it tells me "VNC server not found on port 5900".

If you have a firewall running on your computer you have to open port 5900 on that too. You also have to forward port 5900 on your router to the computer on your network (if you want to access it from the outside world).

Similar Messages

  • VNC cannot connect to port 5900

    I have a VNC app on my iPhone and I enter the ip address but when I try to connectt it says it cannot connect to port 5900. Please help.

    Have you opened the ports on the linksys router for VNC...?
    Try this link and open the required ports on the router using port forwarding.Also,check this link to use VNC on your iphone.

  • Help With VNC Ports

    Hello everyone. I have a PowerPC G4 Mac Mini with Mac OS X 10.4 Tiger. I have turned off the Apple Firewall and I do not have a router. I connect to the internet using a DSL Modem. OK, I am trying to set up a VNC Server Using OSXvnc. Well, I know i need port 5900 to be open, and there is nothing blocking this port from opening. I checked on www.grc.com to see if port 5900 was open, but it said the port was "Stealthed". Does anyone know how I can open port 5900? Thanks in advance for all of your help.

    Could you try opening a Terminal window and typing the following command:
    sudo ipfw list
    (you'll be prompted for your password; you have to be an Administrator of your computer)
    If your firewall is completely turned off, it should print a line like:
    65535 4660828 3870352285 allow ip from any to any
    If it's not completely off, you'll get a whole bunch of lines as output, some saying "deny ip" instead of "allow ip". That would be my best guess as to what's happening.
    Also, I assume you haven't installed any third-party (non-Apple) firewall programs? A few do exist...
    If the firewall is off, have you tried connecting via VNC, just to see if it actually does work?

  • Apple Remote Desktop, VNC, and port 5900 LAN weirdness

    Hi all,
    I am trying to share screens with a Mac Mini running ARD in OS X 10.3.9 over a LAN from my Macbook Pro (10.4.11). I have an Airport Extreme base station (7.2.1). The Mini is connected to the base station via wired Ethernet cable, the Macbook is wireless.
    I'm using Chicken of the VNC (2.0b4) on the MacBook, but I can't get anything but Connection Refused.
    * The software firewall on the mini is off (I'm behind NAT)
    * I've turned on ARD in the Sharing prefs control panel, set up the users and checked all the "allow" checkboxes (and restarting the mini)
    * I've tried connecting to port 5900, 5901, and 3283
    * I've tried enabling port mapping on the Airport (which seems crazy, since this is all happening within the LAN)
    I can SSH to the mini just fine from the Macbook. Using NetUtility, I can ping it, traceroute to it, you name it.
    The only weird thing that I can find is that when I do a Port Scan on the Mini, it never returns port 5900 as open (which it seems like it should). Other ports return as open.
    I've Googled my brains out looking for answers on this, and the best info that I can find points toward a network config. problem. But if that's the case, why can I SSH okay?
    And yes...I could upgrade to Leopard on the MacBook. Or install OSXvnc on the Mini. But I can't see why I wouldn't have exactly the same problem. And, dadgum it, this should work!
    I'm totally stumped (and have a sneaking suspicion that I'm missing something obvious). If anyone can shed light on this, or point me at a resource, I'd be very grateful.
    thanks,
    c

    Thanks to the folks at macosxhints.com, I have discovered that ARD in OS X 10.3.x doesn't support VNC connections.

  • ARD/VNC connection logging? Port 5900 attempts not getting logged

    I have a 10.7.5 machine on my home network with the built-in screen sharing turned on. I connect to it from work with the standard Screen Sharing app, so it's a basic VNC connection using the default Apple client/server software on the default port 5900.
    These connections show up in /var/log/secure.log like this:
    Jan 15 10:16:41 MyServer screensharingd[7630]: Authentication: SUCCEEDED
    Jan 15 10:21:35 MyServer screensharingd[7630]: Authentication: FAILED
    But when I look at my traffic logs (using PRTG Network Monitor), I see frequent port 5900 connections to that machine that don't correspond with any secure.log entry.
    Where might those connection attempts be logged? Is there something other than screensharingd that might be handling port 5900 traffic?
    Thanks,
    Ian

    Got the answer on another tech board. It's just a port scan, not a connection attempt.

  • Screen sharing without Port 5900?

    I have a Mac Pro (desktop) on Lion connected to a router and internet via Cat 5 Ethernet. I have a Mac BOOK Pro on Snow Leopard which I often get online wireless, in our home, but in other rooms.
    I would like to use Screen Sharing to control the Mac Pro from the Mac BOOK Pro while the MacBook Pro is on wireless.
    My understanding is that Port 5900 is opened to facilitate this, but also have learned that having port 5900 is ill-advised due to hacker attacks.
    Is there a way to do screen sharing across wireless, but with 5900 closed? Or..if 5900 must be opened, can I be secure somehow, or just take my chances?
    thank you!
    More details: The wireless router has its firewall enabled, and a decent password, and runs WPA2
    Both macs have firewall enabled, robust passwords, PLUS, both computers operate with a Standard (not Admin) user.
    Thanks for any help with this.
    ray

    most routers have a wired and wireless network. some times you have to configure the router to allow devices on the wireless network talk to devices on the ethernet network. some times this is reffered to as bridge mode.
    for troubleshooting perpoes, you could turn off the wirewall on both computers. If you have remote management configured and enabled on the mac pro. the MacBook Pro should be able to see the mac pro on the network, and connect to it. (dock, click on finder, menu bar, go menu, connect to server, browse.
    if you can't find or connect to the mac pro. check the router to look at your wired vs wirless network. what model is your wireless enabled router? is the mac pro plugged into the wireless enable router by ethernet ? or is it plugge dinto another device? if so what?
    if you can connect, but only when the firewalls are off, then you would probable want to allow incomintraffic ARD on your mac pro. and allow out going traffic from ARD on your MacBook Pro.

  • Changing VNC Port

    Hello. I use VNC from my iPad to connect to my computers. I have two Macs (mac mini, and imac) and two PCs (one desktop and one laptop).
    In order to be able to connect to them from outside my network I need to change the VNC port in the screen sharing settings, which I can't, because there is no way to do that in the mac os.
    How can I do that?
    I use wired networking on both macs.
    Thanks in advanced!
    Wilfredo Nanita.

    Yeah, this one is tricky. I don''t think the built-in Screen Sharing TCP port can be changed. (Correct me if I'm wrong.) You could try another VNC server, something that you can easily change the listening port. I used to use OSXVNC until Screen Sharing became available on Leopard. I don't know if it's still compatible with Snow Leopard, so do some homework before installing.
    Some routers have the ability to do a "port translation". I think it was my D-Link router that allowed me to specify the "outside" TCP port and the "inside" TCP port. So "outside" was 5901, and "inside was 5900, which matched what Screen Sharing was expecting, thus no need to reconfig Screen Sharing.
    Now, I use a VPN connection to my home. Once the VPN is established, then port forwarding or port translation is not needed and I connect to the machine just like I was on the LAN. (i.e.: 192.168.1.5:5900 for one machine and 192.168.1.6:5900 for the other machine.)
    Alternatively, you could forgo VNC altogether and use something like LogMeIn. I have that installed to one of my machines just in case I f-up something on Screen Sharing or the router port forwarding while I'm away. LogMeIn works very well, and is free for use on a Mac or PC, both the host and remote. However from an iPad or iPhone, you need to install their App, LogMeIn Ignition, which is $30.

  • On VMM managed cluster hosts, I can't figure out why most of my hosts answer port 5900 and the others 2179, but not both

    Below, you see a netcat list of my hosts.  Most are answering port 5900, but not 2179.  The list on the bottom is answering 2179, but not 5900.  I need to know for 3 reason why this is, (1) to setup our enterprise firewall, (2) for port health
    monitoring of our hosts, and (3) just what is going on.  I thought that 2179 should be open on all hosts, and that 5900 was only used in legacy cases (at least from what I read from googling around).  Why aren't all of my hosts answering 2179?
    My hosts are all Server 2008 R2 Datacenter SP1 64-bit.  We have a mix of VMs with Server 2008 R2, Win7, and RHEL6, all 64-bit.
    Most answering 5900...
    [lhco-mshv01] Connection to lhco-mshv01 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv02] Connection to lhco-mshv02 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv03]
    [lhco-mshv05] Connection to lhco-mshv05 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv06]
    [lhco-mshv07]
    [lhco-mshv08] Connection to lhco-mshv08 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv09] Connection to lhco-mshv09 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv10]
    [lhco-mshv11] Connection to lhco-mshv11 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv12] Connection to lhco-mshv12 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv13] Connection to lhco-mshv13 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv14] Connection to lhco-mshv14 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv16]
    [lhco-mshv17]
    [lhco-mshv18] Connection to lhco-mshv18 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv19] Connection to lhco-mshv19 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv20]
    [lhco-mshv21]
    [lhco-mshv22] Connection to lhco-mshv22 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv23] Connection to lhco-mshv23 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv24] Connection to lhco-mshv24 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv25] Connection to lhco-mshv25 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv26] Connection to lhco-mshv26 5900 port [tcp/vnc-server] succeeded!
    [lhco-mshv27] Connection to lhco-mshv27 5900 port [tcp/vnc-server] succeeded!
    The others are answering 2179...
    [lhco-mshv01]
    [lhco-mshv02]
    [lhco-mshv03] Connection to lhco-mshv03 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv05]
    [lhco-mshv06] Connection to lhco-mshv06 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv07] Connection to lhco-mshv07 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv08]
    [lhco-mshv09]
    [lhco-mshv10] Connection to lhco-mshv10 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv11]
    [lhco-mshv12]
    [lhco-mshv13]
    [lhco-mshv14]
    [lhco-mshv16] Connection to lhco-mshv16 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv17] Connection to lhco-mshv17 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv18]
    [lhco-mshv19]
    [lhco-mshv20] Connection to lhco-mshv20 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv21] Connection to lhco-mshv21 2179 port [tcp/vmrdp] succeeded!
    [lhco-mshv22]
    [lhco-mshv23]
    [lhco-mshv24]
    [lhco-mshv25]
    [lhco-mshv26]
    [lhco-mshv27]

    Brian,
    This is specifically related to Hyper-V hosts, where the following ports may be used by the VMM to communicate to each host:
    VMConnect (RDP) to Hyper-V hosts 2179
    VMRC connection to Virtual Server host 5900
    These ports are outlined here...
    technet.microsoft.com/en-us/library/cc764268.aspx
    I am not running independent VNC servers on my hosts.  They are VMRC ports.  My confusion is why some of my hosts are only answering 2179, while the others are only answering 5900, but not both ports on all hosts (or for that matter just 2179 on
    all hosts).

  • VNC - Port Forwarding

    I have the following Port Forwarding entries on my router:
    RealVNC 5900 5900 192.168.1.2
    RealVNC2 5800 5800 192.168.1.2
    However, when I try to connect to my PC from my office PC, nothing happens. I'm using my Router's IP address in the VNC program and click OK, but it never connects (no request for password). I can VNC to my work PC from my home PC.
    Any ideas?????

    Im having the same problem. Using vnc, I get no prompt to enter password. I did like "quack" said, I went to http://www.t1shopper.com/tools/port-scanner. After running test on port 5900, I was told that my port is not responding. Anyone know what this is all about? This is my 4th attempt at vnc in the past two years and it's just driving me nuts that I cannot do this.
    PS: I am only able to use my vnc viewer internally by entering the local computers IP address (192.168...) but it always fails when entering the main ip address that I would use remotely (outside of building)
    PS: I am able to remotely view my friends computer, and he uses a cheapo no name router, all our settings are identical.
    Please help

  • Port 5900 appears blocked from WAN

    I have 39 Macs I am remotely administering but a few (2) seem to have port 5900 for VNC as blocked.  We have rules out our router as a PC at the same location can VNC no problem through that route/firewall.  So it seems to me that the port is being blocked on that Mac.  The remote management setting are all set to allow and the internal ipfw is turned off.  At one time IceFloor was installed but those settings have been dumped and uninstalled.  Is there a way to restore all the ipfw setting to open to ensure it is not the Mac blocking the port?

    Looks like I can't edit my original question...
    The problem is still happening, I've been doing some testing to narrow it down...
    + it's not just my computer (have also tried from my mums PowerPC and my sisters iMac), although it could be a mac thing (I don't have a windows machine to test from, only windows running on a mac, though I will give that a shot later)
    + it's not my internet connection (although it could be my ISP - I tested at my sisters place, who uses the same ISP as me, am looking for another testing location that has a different ISP)
    + it's not my website (have tried uploading to a completely unrelated website with similar results)
    + it's not cyberduck (have tried with filezilla, similar results, also tried via terminal - I don't know how to upload files, but when I connected, it connected through a different port, a 5 digit number, can't remember what now).
    Not too sure where to go from here...

  • Problem opening port 5900

    Hello,
    I have been unable to open port 5900 on a WRT54 or on my current WRT150N router despite spending over 2 hours with tech support. If anyone thinks they can help me please reply.
    current config:
    distributes fixed IP, 69.2.240.211, traffic to an internal network, 192.168.1.xxx
    port 22 open and forwarded
    port 80 open and forwarded
    port 5900 - nothing
    Let me know if you need further details.
    Thanks - denis

    Logically if you are able to open ports 22 and 80 your router should also be able to open 5900...If not you can just upgrade the Firmware on the router and retry...

  • Port 5900, how to open for local USER?

    I'm having the same problem as many on this ARD forum - we canot Observe & Control some Macs. I've noticed that the ones we cannot access are running AppleVNCS through port 5900 via 'root', but those we can access are running AppleVNCS via 'user'.
    Is there any way I can force the faulty systems to access through 'user'?
    I have tried various tricks through System Preferences, but I'm not getting the desired result.

    That's an interesting correlation between the user the server process runs as and whether you can successfully initiate a session, however, it shouldn't matter. AppleVNCServer appears to run as the user that is currently logged into the console. Only if there is no console user (machine is at the real login window, not FUS login window popup) does the server runs as root.
    Are you able to connect via screen control if you log a user into the console of one of these machines?
    Is the user for AppleVNCServer tracking with the console user ID? Are there more than one copy of AppleVNCServer running?

  • How to findout vnc port no. used by the each guest vm

    hi,
    i am using OVM 2.2.0
    how to findout vnc port no. used by the each guest vm using command line on the VM server
    thanks in advance..

    hi Avi,
    Thanks for your reply
    i tried but still no success & iam getting the following error
    [root@OVM-SERVER-1 ~]# xm list
    Name ID Mem VCPUs State Time(s)
    Domain-0 0 543 2 r----- 459.1
    test 1 300 1 r----- 13.0
    [root@OVM-SERVER-1 ~]# virsh dumpxml
    error: command 'dumpxml' requires <domain> option
    [root@OVM-SERVER-1 ~]# virsh dumpxml 1
    libvir: Remote error : No such file or directory
    libvir: warning : Failed to find the network: Is the daemon running ?
    libvir: Xen Daemon error : internal error domain information incomplete, missing kernel & bootloader
    [root@OVM-SERVER-1 ~]# virsh dumpxml test
    libvir: Remote error : No such file or directory
    libvir: warning : Failed to find the network: Is the daemon running ?
    libvir: Xen Daemon error : internal error domain information incomplete, missing kernel & bootloader

  • Does Verizon FiOS block Port 5900?

    Okay, so I've got a computer with absolutely no ports blocked, I've shut off the firewall, the thing is behind a router, but set as DMZ. I still can't control/observe. I can use every other feature of ARD except control/observe, and screen sharing. I've confirmed that port 5900 is not responding on the computer in question, despite the above extreme trouble-shooting measures. The computer in question is not on my local network, it's in another state with Verizon FiOS internet. Does Verizon block port 5900, or should I suspect there is something else going on with the router or ARD?
    If port 5900 is being blocked by the ISP, can I use router/ARD magic to change what port actually gets used, while still making ARD happy?
    I'm kind of going crazy here...

    Welcome to the Discussions,
    You will have to check with Verizon to see if they pass port 5900 or not. I suspect that may be the case.
    While I can't tell you how to change the port, I can tell you that many administrators use port 80 tools like gotoassist.com or logmein.com for system on networks out of their control. Of course you won't be using ARD, but it is much easier than changing the default port settings on every machine.

  • My MacBook Pro doesn't recognize my new iPhone in iTunes.  It recognizes it in iPhoto and automatically uploads my photos.  I have restarted the computer, checked for updates, tried a different USB port. Help please :-)

    My iTunes isn't recognizing my new iPhone as a device.  iPhoto recognizes it and uploads my pics.  I've restarted the computer, updated itunes, tried a different USB port.  Help please.

    Does iphoto launch as soon as you connect your device?
    If yes, did you try to disable the camera notification? iPhone and iPod touch: Disabling digital camera notification in Mac OS X

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