Created
November 27, 2015 05:07
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| #!/bin/bash | |
| MAILSVR="mailscan.in.psu.ac.th" | |
| R4=`echo "quit" | nc -w 3 -4 $MAILSVR 25` | |
| R6=`echo "quit" | nc -w 3 -6 $MAILSVR 25` | |
| D=`date '+%Y%m%d %H:%M'` | |
| echo -n "$D " | |
| [ "$R4" ] && echo -n "[IPv4:OK]" | |
| [ "$R6" ] && echo -n "[IPv6:OK]" | |
| echo "" |
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