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bijanrich / snat_dnat_advantech.md
Created September 16, 2020 20:38 — forked from tomasinouk/snat_dnat_advantech.md
examples of SNAT, DNAT with iptables for Advantech, Conel routers, with comments (probably will work on other routers where iptables can be manipulated, care needs to be taken on applying these commands after reboot)

Some examples of SNAT, DNAT with iptables with comments

mainly used in start-up script

masquarade all outgoing packets to be WLAN0 IP

iptables -t nat -A PREROUTING -s 192.168.1.2 -i eth0 -j MASQUERADE

All packets leaving eth0 will have src eth0 ip address




  


  




    


          
    

      

        
        

          

              @bijanrich
          

          

            
                bijanrich
                / useradd.sh
            
            

              Created
              September 12, 2020 21:54
                — forked from igorvoltaic/useradd.sh
            

              
                Create new user using command line in Mac OS X. Do not forget to set correct permissions for the file.
              
          

        

      

        

  

    
    


        



  


  

        

          
          #!/bin/sh
        

        

          
          

        

        

          
          if [[ `id -u` != 0 ]]; then
        

        

          
              echo "Must be root to run script"
        

        

          
              exit
        

        

          
          fi
        

        

          
           
        

        

          
          read -p "Enter user name and press [ENTER]: " UserName
        

        

          
          

        

        

          
          if [[ $UserName == `dscl . -list /Users UniqueID | awk '{print $1}' | grep -w $UserName` ]]; then