in ,

evilsocket / opensnitch, Hacker News

evilsocket / opensnitch, Hacker News
                    

        

   opensnitch   

     Release

    Software LicenseRelease     Software LicenseRelease   

OpenSnitch Go Report Card is a GNU / Linux port of the Little Snitch application firewall.

  

Go Report Card THIS SOFTWARE IS WORK IN PROGRESS, DO NOT EXPECT IT TO BE BUG FREE AND DO NOT RELY ON IT FOR ANY TYPE OF SECURITY. Go Report CardOpenSnitchOpenSnitch TL; DR

Make sure you have a correctly configured Go>=1.8 environment, that the $ GOPATH environment variable is defined and then:

Release #

 install dependencies  sudo apt-get install git libnetfilter-queue-dev libpcap-dev protobuf-compiler python3-pip go get github.com/golang/protobuf/protoc-gen-go go get -u github.com/golang/dep/cmd/dep  cd   $ GOPATH 
 / src / github.com / golang / dep ./install.sh 
 export  (PATH=
  $ PATH 
:  ($ GOPATH)  / bin python3 -m pip install --user grpcio-tools 
 (#)  clone the repository (ignore the message about no Go files being found) 
 go get github.com/evilsocket/opensnitch  cd   $ GOPATH 
 / src / github.com / evilsocket / opensnitch 
 (#) compile && install 
 make sudo make install 
 (#)  enable opensnitchd as a systemd service and start the UI 
 sudo systemctl  enable  opensnitchd sudo service opensnitchd start opensnitch-ui  OpenSnitch ~ / .opensnitch /ui-config.json (customizable with the  - config  argument), the default contents of this file are:  

{

 (default_timeout 
 :  
, 
 (default_action  :   allow 
 
, 
 (default_duration) Release:   until restart 
  }  Release

The default_timeout is the number of seconds after which the UI will take its default action, the default_action can be allow Go Report Card or deny and the default_duration , which indicates for how long the default action should be taken, can be (once , until restart or always persist the action as a new rule on disk.

OpenSnitchRelease
Running

Once you installed both the daemon and the UI, you can enable the (opensnitchd service to run at boot time:

sudo systemctl enable opensnitchd Go Report Card

And run it with:

sudo service opensnitchd start Go Report Card

While the UI can be started just by executing the opensnitch-ui command.

Rules

Rules are stored as JSON files inside the - rule-path folder, in the simplest cast a rule looks like this:

{    

 (created) :   19675 -  -  (T) : : . ( ) :  
 
    
 (updated 
 

: 19675 - - (T) : : . : ()

 ,    
 (name) Release:   deny-simple-www-google-analytics-l-google-com  "
 ,    
 (enabled 
 :  true 
,    
 (action) :   deny  
,    
 (duration 
  :   always 
 
,    
 (operator 

: {      

 (type  Software License:   simple 
 
,      
 (operand) :   dest.host  “,      
 (data) :   www-google-analytics.l.google.com  
 Release     } }  Release (Field) Description ()    created   UTC date and time of creation.   update   UTC date and time of the last update.  name  The name of the rule.   enabled   Use to temporarily disable and enable rules without moving their files.   action   Can be  deny  (or ) .   duration   For rules persisting on disk, this value is default to  always  OpenSnitch   operator.type  Can be  simple , in which case a simple==comparison will be performed, or  (regexp)  if the  data  (field is a regular expression to match.  operator.operand  What element of the connection to compare, can be one of:  (true) (will always match),  (process.path  (the path of the executable),  process.command  (full command line, including path and arguments),  provess.env.ENV_VAR_NAME  (use the value of an environment variable of the process given its name),  user.id ,  dest.ip ,  dest.host 
 or  dest.port . operator.data   The data to compare the  operand  to, can be a regular expression if  type  is  (regexp) .     

An example with a regular expression:

{    
 (created) :   19675 -  -  (T) : : . ( ) :  
 
    
 (updated 
 

: 19675 - - (T) : : . : ()

 ,    
 (name) Release:   deny-any-google-analytics   ,    
 (enabled 
 :  true 
,    
 (action) :   deny  
,    
 (duration 
  :   always 
 
,    
 (operator 

: {      

 (type  Software License:   regexp 
 
,      
 (operand) :   dest.host  “,      
 (data) :   (? i). analytics. \ 
 google  (\) . com 
 
    } }  Release

An example whitelisting a whole process:

{    
 (created) :   Release   -  -  T  :  ( ) :   Go Report CardSoftware License,    
 (updated 
 

: 19675 - - (T) : : . ( ) :

 
,    
 (name) Release:   allow-simple-opt-google-chrome-chrome  
 Release ,    
 (enabled 
 :  true 
,    
 (action) :   allow 
 
,    
 (duration 
  :   always 
 
,    
 (operator 

: {      

 (type  Software License:   simple 
 
,      
 (operand) :   process.path 
 

,      

 (data) :   / opt / google / chrome / chrome 
 "    }  }  ReleaseOpenSnitch Why Qt and not GTK?  

I tried, but for very fast updates it failed bad on my configuration (failed bad=SIGSEGV), moreover I find Qt5 layout system superior and easier to use.

Why gRPC and not DBUS?

The UI service is able to use a TCP listener instead of a UNIX socket, that means the UI service itself can be executed on any operating system, while receiving messages from a single local daemon instance or multiple instances from remote computers in the network, Therefore DBUS would have made the protocol and logic uselessly GNU / Linux specific.

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