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[ Converted text/html to text/plain ] Hi all, Can someone tell me what is the maximum number of parameters that can be passed to a RPG program? Thanks in advance. Regards, Hrishikesh Kotwal >From: Scott Klement >Reply-To: rpg400-l@midrange.com >To: "'rpg400-l@midrange.com'" >Subject: RE: Reverse DNS Lookup... >Date: Thu, 6 Dec 2001 01:27:47 -0600 (CST) > > >You're on the right track, but not quite right. > >MX is a mail exchanger record. In other words, it points to a host >that can receive mail for a given domain, and really is beside the >point here, as it only affects e-mail. > >The "A" record, is "forward" DNS, in other words its used to convert >a domain name to an IP address. > >The "PTR" record is "reverse" DNS, which is used when converting an >IP address into a name. > >Also, when setting up "reverse" (IP to name) DNS, you have to lay out >the domain in a rather unusual way. If your IP is '192.168.0.1' then >the reverse DNS would be set up as "1.0.168.192.in-addr.arpa" note >that the numbers are in the reverse order from those of the IP address. > >If you're setting up DNS for the first time, I strongly suggest reading >the book called "DNS and BIND" which is available from O'Reilly. It's >designed for the UNIX name server (i.e. BIND, or Berkeley Internet Name >Daemon) but is the "bible" for ISPs running DNS. The concepts that it >explains apply to every DNS server, be it UNIX, NT or OS/400. > > > >On Wed, 5 Dec 2001, Jim Langston wrote: > > > DNS entries for machines have an MX and an A record. > > > > The MX stands for Mail Exchange. Not sure what the A > > records stands for. One converts from the name to the > > IP address, once converts from the IP address to the > > name. > > > > If you can not do a reverse DNS lookup on specific > > hosts, I would suspect they are missing one of these > > records (I believe the A records is IP to Name). > > > > Try other IP addresses that you know have both records. > > Here's a good example. In windows go to a DOS prompt. > > type: > > ping www.midrage.com > > that tells us the IP address is 63.167.147.106. > > then type: > > ping -a 63.167.147.106 > > No name comes back. Looks like David doesn't have an > > 'A' record for his DNS entry. > > > > If we do the same for www.microsoft.com: > > ping www.microsoft.com (207.46.197.101) > > ping -a 207.46.197.101 (microsoft.com) > > > > Microsoft does have an 'A' record associated with it's > > DNS entry. > > > > Sorry for showing this in PC commands, not positive what > > the AS/400 commands are (and my AS/400 isn't connected to > > the internet anyway). > > > > Regards, > > > > Jim Langston > > > > -----Original Message----- > > From: Scott Klement [mailto:klemscot@klements.com] > > Sent: Tuesday, December 04, 2001 3:53 PM > > To: rpg400-l@midrange.com > > Subject: RE: Reverse DNS Lookup... > > > > I can't do reverse lookup on your "www.ctlaltdel.org" either. Not with > > the program, not with the UNIX "host" command, not with the NSLOOKUP > > command... it does not appear to have reverse DNS associated with it. > > > > The 216.115.108.245 does work from my AS/400, however. > > > > The other example (the one that you originally posted) is one that I would > > never use in production :) It may work some of the time, but it surely > > will also fail some of the time. Really. Use the one that I posted, or > > another one that's written correctly :) > > > > > > On Tue, 4 Dec 2001, Andrew Borts wrote: > > > > > OK - Cut & pasted your results. Compiled (it compiled on the first time > > > - stop showing off!) and I still get blanks returned. I even tried > > > using the example that Peter gave of 216.115.108.245 to do my lookup > > > instead of my home server (www.ctlaltdel.org ) and STILL got blanks. > > > > > > I'm leaning toward setting up the DNS server on my AS/400 @ home, and > > > trying the code there... > > > > > > > > > Andrew Borts / Webmaster > >_______________________________________________ >This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list >To post a message email: RPG400-L@midrange.com >To subscribe, unsubscribe, or change list options, >visit: http://lists.midrange.com/cgi-bin/listinfo/rpg400-l >or email: RPG400-L-request@midrange.com >Before posting, please take a moment to review the archives >at http://archive.midrange.com/rpg400-l. > ------------------------------------------------------------------------------ Get your FREE download of MSN Explorer at http://explorer.msn.com[1] ===References:=== 1. http://go.msn.com/bql/hmtag_itl_EN.asp
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