I have two custom scripts I just wrote to facilitate transferring files between my VPS and my home server. They are both written in bash (short & sweet):
#!/bin/bash SENDFILE=$1 PORT=$2 HOST='<my house>' HOSTIP=`host $HOST | grep "has address" | cut --delimiter=" " -f 4` echo Transferring file \"$SENDFILE\" to $HOST \($HOSTIP\). tar -c "$SENDFILE" | pv -c -N tar -i 0.5 | lzma -z -c -6 | pv -c -N lzma -i 0.5 | nc -q 1 $HOSTIP $PORT echo Done.
#!/bin/bash SERVER='<myserver>' SERVERIP=`host $SERVER | grep "has address" | cut --delimiter=" " -f 4` PORT=$1 echo Receiving file from $SERVER \($SERVERIP\) on port $PORT. nc -l $PORT | pv -c -N netcat -i 0.5 | lzma -d -c | pv -c -N lzma -i 0.5 | tar -xf - echo Done.
The problem is that, for a very quick second, I see something flash along the lines of
"Connection Refused" (before
pv overwrites it), and no file is ever transferred. The port is forwarded through my router, and nmap confirms it:
~$ sudo nmap -sU -PN -p55515 -v <my house> Starting Nmap 5.00 ( http://nmap.org ) at 2010-04-21 18:10 EDT NSE: Loaded 0 scripts for scanning. Initiating Parallel DNS resolution of 1 host. at 18:10 Completed Parallel DNS resolution of 1 host. at 18:10, 0.00s elapsed Initiating UDP Scan at 18:10 Scanning 184.108.40.206 [1 port] Completed UDP Scan at 18:10, 2.02s elapsed (1 total ports) Host 220.127.116.11 is up. Interesting ports on 18.104.22.168: PORT STATE SERVICE 55515/udp open|filtered unknown Read data files from: /usr/share/nmap Nmap done: 1 IP address (1 host up) scanned in 2.08 seconds Raw packets sent: 2 (56B) | Rcvd: 5 (260B)
Also, running netcat normally doesn't work either:
squircle@summit:~$ netcat <my house> 55515 <my house> [<my IP>] 55515 (?) : Connection refused
Both boxes are Ubuntu Karmic (9.10). The receiver has no firewall, and outbound traffic on that port is allowed on the sender. I have no idea what to troubleshoot next. Any ideas?
P.S.: Feel free to move this to SO/SF if you feel it would fit better there.