How can I kill whatever process is using port 8080 so that I can vagrant up

Question

On MacOSX  I m using Packer to build a Vagrant box so I need to continually bring it up and tear it down  I m attempting to  vagrant up   and receive the standard error because the port is in use     Vagrant cannot forward the specified ports on this VM  since they would collide with some other application that is already listening on these ports  The forwarded port to 8080 is already in use on the host machine    The solution seems simple enough  I just need to identify the process that is holding port 8080 open and kill that process  right   It s not that easy     If I run the command   nmap localhost -p 8080   I receive the following output   PORT     STATE SERVICE 8080 tcp open  http-proxy     If I run the following command   top -o prt   The highest port in use in 1360    If I run the following command    netstat -tulpn   grep  8080   I receive    netstat  n  unknown or uninstrumented protocol     If I run the following command   lsof -i  8080   I receive no output    If I restart my computer  the port is now available and I can now  vagrant up    How can I kill whatever process is using port 8080 so that I can vagrant up without restarting my computer

User · Answer

Use the following command  lsof -n -i4TCP 8080   awk   print 2     xargs kill -9 The process id of port 8080 will be picked and killed forcefully using kill -9

User · Answer

Fast and quick solution  lsof -n -i4TCP 8080 PID is the second field  Then  kill that process  kill -9 PID Less fast but permanent solution  Go to  usr local bin     Can use command shift g in finder   Make a file named stop  Paste the below code in it       bin bash touch temp text lsof -n -i4TCP  1   awk   print  2    gt  temp text pidToStop   sed  2q d  temp text    gt  temp text if    -n  pidToStop    then kill -9  pidToStop echo  quot Congrates    1 is stopped  quot  else echo  quot Sorry nothing running on above port quot  fi rm temp text   Save this file  Make the file executable chmod 755 stop Now  go to terminal and write stop 8888  or any port

User · Answer

In case above-accepted answer did not work  try below solution   You can use it for port 8080 or for any other ports   sudo lsof -i tcp 3000    Replace 3000 with whichever port you want  Run below command to kill that process   sudo kill -9 PID   PID is process ID you want to kill   Below is the output of commands on mac Terminal

User · Answer

Run  nmap -p 8080 localhost  Install nmap with MacPorts or Homebrew if you don t have it on your system yet   Nmap scan report for localhost  127 0 0 1  Host is up  0 00034s latency   Other addresses for localhost  not scanned     1 PORT     STATE SERVICE 8080 tcp open  http-proxy  Run  ps -ef   grep http-proxy  UID   PID  PPID   C STIME   TTY           TIME CMD 640 99335 88310   0  12 26pm ttys002    0 00 01 grep http-proxy quot   Run  ps -ef 640  replace 501 with your UID    System Library PrivateFrameworks PerformanceAnalysis framework Versions A XPCServices com apple PerformanceAnalysis animationperfd xpc Contents MacOS com apple PerformanceAnalysis animationperfd  Port 8080 on mac osx is used by something installed with XCode SDK

User · Answer

To script this   pid   lsof -ti tcp 8080  if     pid     then   kill -9  pid fi   The -t argument makes the output of lsof  terse  which means that it only returns the PID

User · Answer

This might help  lsof -n -i4TCP 8080    The PID is the second field in the output   Or try   lsof -i -P

User · Answer

It can be Cisco AnyConnect   Check if  Library LaunchDaemons com cisco anyconnect vpnagentd plist  exists  Then unload it with launchctl and delete from  Library LaunchDaemons

User · Answer

You can also use the Activity Monitor to identify and quit the process using the port

User · Answer

try netstat  netstat -vanp tcp   grep 3000   if your netstat doesn t support -p   use lsof  sudo lsof -i tcp 3000    For Centos 7 use  netstat -vanp --tcp   grep 3000

User · Answer

I needed to kill processes on different ports so I created a bash script  killPort       PID   echo   lsof -n -i4TCP  1    awk  NR  1 print  11      kill -9  PID    Just add that to your  bashrc and run it like this  killPort 8080  You can pass whatever port number you wish

User · Answer

sudo lsof -i 8080   By running the above command you can see what are all the jobs running   kill -9  lt PID Number gt    Enter the PID  process identification number   so this will terminate kill the instance

User · Answer

I needed to run this command  sudo lsof -i  80   checks port 8080   Then i got   COMMAND   PID USER   FD   TYPE             DEVICE SIZE OFF NODE NAME acwebseca 312 root   36u  IPv4 0x34ae935da20560c1      0t0  TCP 192 168 1 3 50585- gt 104 25 53 12 http  ESTABLISHED    show which service is using the PID  ps -ef 312   Then I got this    UID   PID  PPID   C STIME   TTY           TIME CMD     0   312    58   0  9 32PM            0 02 70  opt cisco anyconnect bin acwebsecagent -console   To uninstall cisco web security agent run  sudo  opt cisco anyconnect bin websecurity uninstall sh   credits to  http   tobyaw livejournal com 315396 html

[macos] How can I kill whatever process is using port 8080 so that I can vagrant up?

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