Close a port

Similar Questions

• Close the port 455, is it necessary? I have windows firewall IT and using Windows Essentials.

  How to close port 445?  Should it be closed? What effect will have open/closed? I am a novice user and understand many uses and ways to configure certain parts of my computer. This open port sparked yet another in the functioning of my PC. Thank you Jerome.

  I can't imagine why you would want to do and I have no intention of frelling with any of my Windows machines to try it for you. If you feel better close your port 455, simply use the Windows Firewall to do. You must take the advice of Steve Gibson with a grain of salt. If your computer is clean, you have a good antivirus installed, you are using a firewall, are behind a router and practice "Safe Hex" then find something else to worry about. But that's just my opinion.

  Safe Hex:
  http://www.getsafeonline.org/
  https://www.mysecurecyberspace.com/
  http://www.GetNetWise.org/
  http://www.Microsoft.com/protect/default.aspx
  http://www.elephantboycomputers.com/staying-safe.PDF

  MS - MVP - Elephant Boy computers - don't panic!

• Cannot close the ports 21 and 443 on router r7000

  my router from r7000 nighthawk is currently running firmware v1.0.6.28_1.1.83 and I'm comcerned with security of my network from ports 21 (ftp) and 443 (https) are both always open to exploits. These results, to which I refer are scan utility shield of gibson research online.

  I closed port forwarding in the router nothing works management. and it's only the first ports scanned 1056.

  AWESOME! who did it!

  just down leveled for firmware v1.0.5.64_1.188

  Unit rebooted and wah - lah... port 21 (FTP) is closed to shields up port scanner.

  Thank you!

• How close smart port used to connect the codec when it detects a codec?

  Guys,

  When our our use intelligent proximity via a wifi network that has a firewall between the network codec is on. The connection fails even the smartphone detects the codec very well. So I wonder what kind of Protocol and port the app uses to control the codec and receiving snapshots.

  any idea on this?

  Thank you.

  Lou

  Your question would be preferable, in the proximity of the forums section.  On the homepage there is a link to some frequently asked questionsand in the FAQ says how matching works.

  The Cisco proximity application pairings in the system using utrasound where he received the details on how to connect to the endpoint over HTTPS. This requires that the Pocket IE phone or tablet to be connected to a network where the system is accessible over HTTPS.

• WAG320N - automatically opens and close a UDP port (3658)

  Hello

  I noticed that in my router as the router EOP journal a port automatically without human intervention, and after a few router time closes the port.

  Here is the log file from my router which opens the port and closes after a couple of hours.

  LOG------------------------------

  Tue, 2010-02-09 10:02:16 - AddPortMapping: NULL: 3658 external to the UDP Protocol 10.1.1.253:3658 for: 10.1.1.253:3658 to 3658 (UDP) with timeout:0
  Tue, 2010-02-09 10:02:16 - no authorization rule corresponding: accept the default (n_perms = 0)
  Tue, 2010-02-09 10:02:16 - redirect port 3658 UDP protocol 10.1.1.253:3658 for: 10.1.1.253:3658 to 3658 (UDP)
  Tue, 2010-02-09 10:02:16 - creating pass rule UDP Protocol 10.1.1.253:3658 for: 10.1.1.253:3658 to 3658 (UDP)

  .....

  Tue, 2010-02-09 12:52:59 - DeletePortMapping: external port: 3658, Protocol: UDP
  Tue, 2010-02-09 12:52:59 - deleting the port UDP 3658 forwarding rule
  Tue, 2010-02-09 12:52:59 - trying to delete rules at index 0

  ----------------------------------------------------------------------------------

  Why is this happening?

  Yes. Exactly. Your PS3 will open this port via UPnP.

• Management of ports

  Thank you-

  Is it possible to close the ports open on the new Mac Pro network?  We place one as a server in a corporate environment and the internal security/network group uses automated scanning software security to "detect" the ports open, they want closed.  They will be too firm in order to allow the machine on the network.  If possible can you point me to documentation on how this is done?  Thank you.

  In a normal workstation that is behind a firewall, you control, NO ports are visible from the internet.

  If you configure a Mac OS X Server, this software controls which ports are open. Your query can do better on this forum:

  Servers and enterprise software

• Serial port visa and while loop

  Hello

  I am trying to acquire data of a device through serial communication. This is an RS232 interface. I use a port of visa and I know open and close the port of visa again and again while the program is running is bad style. So, I trieed to use a while - excluding the Visa open loop and nearby (see the attachment of a second, program 2). Unfortunately this work of isn´t program and I can´t find the bug. However the first attachment (program 1) works properly (except that the speed is maybe more low). Sombody could me to get the second work programme.

  Thank you!

  Best regards

  Soffi

  What you need to do is to add a register to offset for the name of resource VISA and error. See attachment a screenshot.

  I couldn't find this anywhere in the examples of NEITHER. (This one is based on the basic series example write and read vi.) When I started with LV, I asked tech support how to do this, and they told me. I WISH THEY WOULD SHARE THIS TECHNIQUE WITH USERS IN THE UNITED STATES!

  I hope this helps. (I can reach the vi if you wish.)

  Ed

• Visa OR written closing serial port

  Hi all

  Currently in collaboration with LV2011 and NOR visa 2014.  In my application, I have 7 open including 4 serial ports I write for devices, 3 are simply listening.  Now, I write to 4 of these devices, alternating between them, the second time I try to write to a device, the writing is not received, but when I exit the application and close the port, the message is received. I saw this on 2 similar devices and it is a bit random. Possible, it is a matter of the unit, but I don't see this problem when you use the tera term.  We never seen it before?

  I can post code, but it is a great application and I use the AMC add on.

  Thank you

  Matt

  Using native serial or USB-to-serial adapters ports?  USB adapters often behave in certain circumstances wrong with LabVIEW.

  If he can be a bit of work around the problem, is it possible you can close the reference in LabVIEW just after writing of visa for 'forcing' the message, and then open again the serial port reference?

• TCP Read blocks remote Port

  Hello

  I want to read a string of NMEA (1 Hz update rate) of a server. The original NMEA (series, 4800 baud rate) is converted by a MOXA to TCP.

  Here is my minimum program, I normally have a timer "wait until 1000ms" inside.

  

  The problem is that the MOXA closes its other port every minute. I can still read, but everyone else is blocked.

  Other Terminal programs work. The network guy told me that he sees a lot of traffic from my address and he thinks that, at some point, the MOXA is confused and shut its ports.

  Is there a possibility that read TCP sends a string of status or failure?

  azavarsky wrote:

  Hello

  I want to read a string of NMEA (1 Hz update rate) of a server. The original NMEA (series, 4800 baud rate) is converted by a MOXA to TCP.

  Here is my minimum program, I normally have a timer "wait until 1000ms" inside.

  

  The problem is that the MOXA closes its other port every minute. I can still read, but everyone else is blocked.

  Other Terminal programs work. The network guy told me that he sees a lot of traffic from my address and he thinks that, at some point, the MOXA is confused and shut its ports.

  Is there a possibility that read TCP sends a string of status or failure?

  How fast this device sends its strings? -What is simply spit data without any query command to be sent? If so your Moxa can be a problem too, because he doesn't know what to do with the data if there is no client connected to read. Also your Moxa converter can struggle to serve more than one client TCP on port even anyway. What should you do if several clients try to access the same port? Send the same message to everyone? Or send the incoming message randomly to one of them?

  Do you get your TCP read once errors Moxa "closes" the port as you say? If so you should terminate your loop on any error except maybe a timeout error and reopen the port in a second outer loop until your program wants out. Your loop never stopping on the errors will prevent the close TCP to run that will keep open socket and prevent the Moxa to see good handshake that the connection has been properly closed by the customer, which will probably prevent the Moxa device able to accept new connections. Network communication can be tricky and one of the first things you have to learn is the appropriate error handling. No matter what mistake anywhere in the network connection, usually error timeout on reading, with the exception should be managed by closing the connection and tries to reconnect.

• If Port 3389 must be open?

  I use HP Desktop with Visat Home premium 32-bit with SP2 for Vista

  Security is Norton

  I've seen attempts at unsolicited incoming connections IP addresses connecting to this port, or at least try to connect (small notice number of bytes sent and received)

  When I run netstat - ano, I see that port 3389 is in status "listens".

  Shields Up indicates the port is "open".

  I have not checked on remote help

  a few questions come to mind

  1 is this port open even if remote assistance is disabled by default on Vista?

  2. How can I close this port?

  Hello

  By default, Remote Desktop uses port 3389 as listening to all the Remote Desktop connections incoming port. You can change the port to prevent any attack.

  Step to change the listening port:
  a. Click Start, and then type regedit in the search box start and press ENTER.
  b. expand the registry files to:
  HKEY_LOCAL_MACHINE > System > CurrentControlSet > control > TerminalServer > WinStations > RDP - Tcp
  c. then, locate the registry key under:
  PortNumber
  d. on the Edit menu, click on edit and then, in her change the DWORD value, click decimal that will show us the exactportnumber.
  e. Enter the new port number, and then click on the OK"" button.
  f. exit the registry editor and restart your computer.

  See this link:
  http://Windows.Microsoft.com/en-us/Windows-Vista/Remote-Desktop-connection-frequently-asked-questions

  WARNING: this method contains steps that tell you how to modify the registry. However, serious problems can occur if you change the
  Register incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it.
  Then you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following link:
  http://Windows.Microsoft.com/en-us/Windows7/back-up-the-registry

  
  
  Kind regards
  Afzal Taher-Microsoft Support.
  Visit ourMicrosoft answers feedback Forum and let us know what you think.

• Port of uplink on PowerConnect 8024F went to the D State down

  Hi all

  We had a strange behavior on one of our switches PowerConnect 8024F. The uplink port of the device (connected to a port on a Cisco Catalyst 6513 10Gig) came down. The output of 'show interfaces status' looked like this:

  Port speed Duplex Neg frothing link Description
  Status of the State
  ---------  -------------------------  ------  -------  ----  ------ ------------
  TE1/0/1 cat6500-rz-1 (te11/2) 10000 Full Off D-low idle
  TE1/0/2 pc8024-ub-1 (te1, 0, 1) complete 10000 Off place Active
  TE1/0/3 pc8024-uv-1 (te1, 0, 1) complete 10000 Off place Active
  TE1/0/4 pc5500-naf02n-1 (te1, 0, 1) complete 10000 Off place Active
  TE1/0/5 pc5500-naf04n-1 (te1, 0, 1) complete 10000 Off place Active
  TE1/0/6 pc5500-naf03-1 (te1, 0, 2) 10000 Full Active Off
  TE1/0/7 pc8024-mensa-1 (te1, 0, 1) complete 10000 Off place Active
  Defekt TE1/0/8 n/a unknown inactive low Auto
  TE1/0/9 pc5500-naf03-2 (te1, 0, 1) complete 10000 Off place Active
  TE1/0/10 pc5500-naf03-3 (te1, 0, 1) complete 10000 Off place Active
  ...

  .. and so on. Firmware is 5.1.2.3. We rebooted the device and he returned to normal behavior.

  Now, can someone explain to me what the "D-Down" State means? I have not found anything in the documentation and using google not any success.

  The configuration of the port looks like the following:

  Description ' cat6500-rz-1 (te11/2).
  MTU 9216
  switchport mode general
  switchport general allowed vlan add 4-5, 14, 22-2729-33, 36, 39-41, 43 tag
  switchport general allowed vlan add 47,51-52,54-56,58-60,63-64,66,75,78-79 tag
  switchport general allowed vlan add 81, 86-90, 93-99, 107, 120, 122 tag
  switchport general allowed vlan add 124 132 - 135, 137, 140, 142-143 147-152 154 tag
  switchport general allowed vlan add 156-157, 160, 165-166, 171, 173-175 the tag
  switchport general allowed vlan add 177-178 180-181, 183, 189, 192, 195-196 the tag
  switchport general allowed vlan add 199,201,203-205 207-208 210-212 the tag
  switchport general allowed vlan add 219-222 224-225 227-233 235-244 246 tag
  switchport general allowed vlan add 248-249, 253, 256, 258-260 262-267 tag
  switchport general allowed vlan add 269-272 274-276 278-279, 282, 284, 286-288 the tag
  switchport general allowed vlan add 292 295 - 298, 323, 344, 347, 349 tag
  switchport general allowed vlan add 354,362,366,370,372,378-380 382-383 385-386 tag
  switchport general allowed vlan add 391,399,405,431,443,447 tag
  switchport general allowed vlan add 475-476, 485, 488, 511, 522, 584, 700-703 710-714 tag
  switchport general allowed vlan add 725,734,838,854-855 909 tag
  switchport general allowed vlan add 950 961 - 962, 981, 999, 1234, 1236, 2205, 2218-2220 tag
  switchport general allowed vlan add 2222,2233,2414,2417 tag
  switchport general allowed vlan add 2506-2507, 2519, 2521, 2621, 2699 tag
  Access-group PVST Mac - filter 1
  LLDP transmit tlv sys - name sys - cap
  LLDP transmit-mgmt

  The used mac filter access PVST-group is:

  Mac-extended access list filter-PVST
  refuse any 0100.0CCC. RCC 0000.0000.0000
  allow a full
  output

  Thanks for reading and suggestions!

  Robin

  It's all associated spanning-tree protocols. D to the bottom is synonymous with diagnostic downwards, which occurs if more than 15 BPDU per second is received during 3 seconds. The switch closes the port. USL worker task is bound traffic so a big change covering tree cause it's really high.

• SSH server check failure daemon SSH (sshd) is not running on port '22 '.

  Hi guyz,

  When installing the agent of control of cloud 12 c the following error message appears: failed check server SSH SSH daemon (sshd) does not run on port '22 '.

  Why that port 22 is necessary? I can't find in the documentation. There will be a connection between hosts on the level of operating system command and FS. What data will be transferred? Can I close this port after installation?

  Thank you in advance.

  Please follow the below doc

  EM 12: Agent Install fails at the stage of initialization with error "SSH (sshd) daemon is not running on port 22' (Doc ID 1488159.1).

  In addition,

  Installation guide base Oracle Enterprise Manager Cloud Control

  Chapter 9 installing Oracle Management Agents

  9.3 Prerequisites/9.3.1 meets the prerequisite credits/table 9-1 for the Oracle Management Agent installation prerequisites

  URL: http://docs.oracle.com/cd/E24628_01/install.121/e22624/install_agent.htm#DAFIFAAA

  Concerning

  Krishnan

• 2009 time capsule cannot connect to the internet via a modem

  I had my 2009 Time Capsule or airport works very well with the modem from my ISP for years. I use the TC a hub wireless and backup. The upgrade of the modem: no problem. Over the weekend, there was a failure of the internet that has since been corrected for days. Since my TC failed to connect to the internet via the modem. I can get online via an ethernet cable from the modem to my two computers (one is a janky PC, the other bought a MacBook Pro in 2015), so I know it's not the modem.

  I turned off and reset the modem several times. I turned off and reset the TC, repeatedly. I've reconfigured the TC twice per the instructions found in other discussions here. I _may_ not having the latest version of the software installed, but this has never been a problem in the past. Reconfiguration will display a green light, but in the diagnosis of the airport, it shows that it has not Internet even when connected via the Ethernet cable to the modem to work. Icons wireless on my laptop an exclamation or a warning icon.

  The cable operator suggested that sometimes the router manufacturers 'close the ports' and must be reopened if the connection is down for awhile. It makes no sense to me, but I'm not very technical.

  Any thoughts? Thank you very much

  Renee

  What is the number and the model of the modem?

  There is a connection by Ethernet cable from the modem to time Capsule. The cable is connected to which port of the modem?  The cable is connected to which port on the Time Capsule?

  If you open AirPort Utility on your Mac... (Finder > Applications > utilities > AirPort Utility)... is displayed the image of the time Capsule?  If Yes, when you click on the image, a small window pops up with an edit box... or... an option for installation manual appears at the bottom of the window?

• you want to send data using labVIEW to arduino using write visa and the process and to take action using arduino. A

  I want to send data using labVIEW to arduino using write visa and the process and to take action using arduino. After that, I want to arduino to send out necessary via a serial port to labVIEW which should be read using visa read and store in a chain. While I am able to write or read both individually, I can't do it consecutively. I used advanced read and write vi for checking my code, but nothing is helping. The wrong bed 'time delay before execution. " Please let me know where I can go wrong. Also is it possible to write code for hx711 using labVIEW

  1. you need not "\n" on your orders println().  This command adds an end of line character already in the message.

  2. you get the error because you have a loop around your reading.  After the first reading (well technically, the second because of you add an extra line end character), there is nothing left in the port.  As a result, you will get the timeout.

  3. you should really consider using a Structure of the event.  This way you just don't write and read when you press the Write button and you can also use the structure of the event to make the loop to stop.  I also go up to close the port inside the stop-> value Change event.

  

• to convert decimal table table of Boolean

  Hey all

  I have a decimal table (or at least that's what I think it is).

  the table is 1010 (and the number of bits can change depending on the application)

  that 1010 is decimal. I want to convert that into a Boolean 1010, because I have to open close some ports in this logic.

  Help, please

  Thank you very much

  Well done more to give

  Your information is a little sparse, so I fill in some blanks by guessing...

  1010 is not a table (and no Boolean value either!)

  Is each figure part of the picture? What is the representation?

  If each digit is a digital element of the array, just wire 'not equal zero' to the table and you will get an array of Boolean.

  It might be easier if you can fix a simple VI which contains the table that you have and the table you want. Thank you!