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Environment variables are 16 bytes from the base pointer (%ebp). Put a break point in the main function and do this, (gdb) x/wx $ebp+0x10 0xffffd3f8: 0xffffd48c (gdb) x/wx 0xffffd48c 0xffffd48c: 0xffffd67e (gdb) x/s 0xffffd67e 0xffffd67e: "XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0" (gdb) (gdb) x/wx 0xffffd48c+4 0xffffd490: ...


Weird. Try to scan that one port with increased verbosity to see what's going on. sudo nmap -vv --packet-trace -p 65301 -sV x.x.x.x


It's possible that the device is only allowing connections from specified IP address ranges(ex: for it's local subnet). So while scanning it may show the port open and telnet running, unless it sees your IP address in that range, your connection will be refused.

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