On Wed, Feb 13, 2013 at 7:57 AM, Ed Greshko <Ed.Greshko@xxxxxxxxxxx> wrote: > One thing of interest to note but which may not affect what the OP is doing.... > > If the port being tested is listed as "filtered" by nmap > > [egreshko@meimei ~]$ nmap -Pn -p143 imap.gmail.com > > Starting Nmap 6.01 ( http://nmap.org ) at 2013-02-13 21:53 CST > Nmap scan report for imap.gmail.com (173.194.64.108) > Host is up. > Other addresses for imap.gmail.com (not scanned): 173.194.64.109 > rDNS record for 173.194.64.108: oa-in-f108.1e100.net > PORT STATE SERVICE > 143/tcp filtered imap > > the command > > 2>/dev/null >/dev/tcp/imap.gmail.com/143 && echo "yes" > > will hang for quite some time.... I don't think this is related to the port being filtered as other sites with filtered ports return quickly (same is true of down hosts). Perhaps it is some other rude firewall behavior that causes the delay?! John -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
