socket error Errno 10013 An attempt was made to access a socket in a way forbidden by its access permissions

Question

I m trying to create a custom TCP stack using Python 2 6 5 on Windows 7 to serve valid http page requests on port 80 locally   But  I ve run into a snag with what seems like Windows 7 tightened up security   This code worked on Vista   Here s my sample code   import SocketServer import struct  class MyTCPHandler SocketServer BaseRequestHandler       def handle self           headerText      HTTP 1 0 200 OK                         Date  Fri  31 Dec 1999 23 59 59 GMT                         Content-Type  text html                         Content-Length  1354            bodyText     lt html gt  lt body gt some page lt  body gt  lt  html gt           self request send headerText     n    bodyText   if   name         main         HOST  PORT    localhost   80     server   SocketServer TCPServer  HOST  PORT   MyTCPHandler      server serve forever        C  python python TestServer py   Traceback  most recent call last     File  TestServer py   line 19  in          server   SocketServer TCPServer  HOST  PORT     MyTCPHandler    File    C  Python26 lib SocketServer py     line 400  in init       self server bind     File  C  Python26 lib SocketServer py     line 411  in server bind       self socket bind self server address     File     line 1  in bind      socket error   Errno 10013  An attempt   was made to access a socket in a way   forbidden by its access permissions   How exactly do I get this to work on Windows 7    Edit on 5 5 2010   2344 PDT   This answer explains that the error is caused by the need for elevated   superuser privileges when accessing ports lower than 1024   I m going to try using a higher port number to see if that works   However  I still would like to know why my local admin account can t access port 80

User · Accepted Answer

On Windows Vista 7  with UAC  administrator accounts run programs in unprivileged mode by default   Programs must prompt for administrator access before they run as administrator  with the ever-so-familiar UAC dialog  Since Python scripts aren t directly executable  there s no  Run as Administrator  context menu option   It s possible to use ctypes windll shell32 IsUserAnAdmin   to detect whether the script has admin access  and ShellExecuteEx with the  runas  verb on python exe  with sys argv 0  as a parameter to prompt the UAC dialog if needed

User · Answer

The main problem is port number used by another application So you can change the port number to unused one as shown below   In windows you can view the used port numbers used by different apps in windows task manager   python manage py runserver 127 0 0 1 portnumber Ex  python manage py runserver 127 0 0 1 8080

User · Answer

For me it was complaining like that on Windows 7 x64 when I had another process already listening on that same port   It is possible to see currently occupied  bound  ports by running  netstat -ban

User · Answer

I solved this on Windows 10 by editing an outbound firewall rule  Right click  quot allow quot  on rule  quot Block network access for R local user accounts in SQL Server instance MSSQLSERVER quot   Screenshot from Windows 10 Firewall - Outbound rules- this is what was blocking my instance

User · Answer

I had to allow    python27 python exe in windows firewall   I don t need to do this on WinXP or Win8

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I just found in my case Kaspersky Internet Security 2019 Firewall was blocking net access for python  Disabling firewall working smoothly  Or adding a exception rules for python app and all file extension with   py will also work

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socket error   Errno 10013  An attempt was made to access a socket in a way forbidden by its access permissions  Got this with flask     Means that the port you re trying to bind to  is already in used by another service or process   got a hint on this in my code developed on Eclipse   windows    if   name         main            Check the System Type before to decide to bind        If the system is a Linux machine -         if platform system       Linux           app run host  0 0 0 0  port 5000  debug True         If the system is a windows     Change      the       Port      elif platform system       Windows           app run host  0 0 0 0  port 50000  debug True

User · Answer

Just run on ports above 1024   anything below is privileged  its the same deal with Linux  i use 5000 for example on wins without any UAC priv escalation

User · Answer

It Seems the Port 80 is already in use  Try to Use some other Port which is not in use by any other application in your System

User · Answer

Try to run the server at a different port  Worked for me   python manage py runserver 127 0 0 1 7000   Explanation    as mentioned on Django documentation   If you run this script as a user with normal privileges  recommended   you might not have access to start a port on a low port number  Low port numbers are reserved for the superuser  root    This server uses the WSGI application object specified by the WSGI APPLICATION setting   DO NOT USE THIS SERVER IN A PRODUCTION SETTING  It has not gone through security audits or performance tests   And that   s how it   s gonna stay  We   re in the business of making Web frameworks  not Web servers  so improving this server to be able to handle a production environment is outside the scope of Django

User · Answer

I found a solution to solve this problem in Python   go to c  python27  directory and rigtlcick python exe and tab to compaitbility  and select the admin privilege option and apply the changes  Now you issue the command it allows to create the socket connection

User · Answer

McAfee was blocking it for me  I had to allow the program in the access protection rules   Open VirusScan Right click on Access Protection and choose Properties Click on  Anti-virus Standard Protection  Select rule  Prevent mass mailing worms from sending mail  and click edit Add the application to the Processes to exclude list and click OK   See http   www symantec com connect articles we-are-unable-send-your-email-caused-mcafee

User · Answer

I just encountered the same issue  my system is Win7  just use the command on terminal like  netstat -na findstr port  you will see the port has been used  So if you want to start the server without this message  you can change other port that not been used

User · Answer

Disable Access Protection in Antivirus   I faced same issue at last found the below logs from antivirus   Blocked by Access Protection rule   NT AUTHORITY SYSTEM C  WINDOWS SYSTEM32 SVCHOST EXE C  PROGRAM FILES  X86  MCAFEE VIRUSSCAN ENTERPRISE MCCONSOL EXE Common Standard Protection Prevent termination of McAfee processes  Action blocked   Terminate Blocked by port blocking rule   C  USERS username APPDATA LOCAL PROGRAMS PYTHON PYTHON37-32 PYTHON EXE  Anti-virus Standard Protection Prevent mass mailing worms from sending mail

User · Answer

Your local port is using by another app  I faced the same problem  You can try the following step    Go to command line and run it as administrator  Type   netstat -ano   find   5000    gt  TCP    0 0 0 0 5000           0 0 0 0 0              LISTENING       4032    TCP         5000                   0                 LISTENING       4032  Type   TASKKILL  F  PID 4032               SUCCESS  The process with PID 4032 has been terminated       Note  My 5000 local port was listing by PID 4032  You should give yours

[python] socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions

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