[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference smurf::ase

Title:ase
Moderator:SMURF::GROSSO
Created:Thu Jul 29 1993
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2114
Total number of notes:7347

1861.0. "Memory Channel node name with underscores?" by SALEM::HARRIS_M () Wed Feb 05 1997 15:26

    Hi,
    
      I heard thru the grapevine (Not sure if it was true) that using an
     _ (underscore in the memory channel node name) may cause problems with
     the ASE cluster? Has anyone encountered this as a problem? 
    
    			Thanks,
    
    			Matt
    
T.RTitleUserPersonal
Name
DateLines
1861.1Not a legal character (by RFC)JANIX::jmhsendmail: The Vietnam of BerkeleyWed Feb 05 1997 17:4217
>>Notefile: SMURF::ASE
>>Note: 1861.0
>>Author: SALEM::HARRIS_M
>>Topic: Memory Channel node name with underscores?
>>Date:  5-FEB-1997 12:26

    
>>      I heard thru the grapevine (Not sure if it was true) that using an
>>     _ (underscore in the memory channel node name) may cause problems with
>>     the ASE cluster? Has anyone encountered this as a problem? 

	Underscores should not be used in host/domain names at all ...
	In some RFC (the number escaped me) mentions them as not to be
	used characters .

 - Jan

1861.2Is it legal? - I don't know ...VIRGIN::SUTTERWho are you ??? - I'm BATMAN !!!Thu Feb 06 1997 08:2912
cmon had a problem with underscores in hostnames since the cluster map 
used them as separators. 

I think this problem is fixed in the latest releases and there are patches
for the old ones. 

I don't know wether it is legal to have underscores in hostnames (I think
it is). 

Regards, 

Arnold
1861.3RFC952 JANIX::jmhsendmail: The Vietnam of BerkeleyMon Feb 10 1997 04:3814
>>Notefile: SMURF::ASE
>>Note: 1861.2
>>Author: VIRGIN::SUTTER "Who are you ??? - I'm BATMAN !!!"
>>Topic: Memory Channel node name with underscores?
>>Title: Is it legal? - I don't know ...

>>I don't know wether it is legal to have underscores in hostnames (I think
>>it is). 

	As per RFC952 no underscores should be used in hostnames.
	Bind from version 4.9.4 onwards will check for illegal
	hostnames and considers the zone to have a syntax error.

- Jan
1861.4What problems would show up, using underscores?SALEM::HARRIS_MThu Feb 13 1997 15:469
    
    Now that I know we shouldn't be using _ in node names. Are there any
    known errors/bugs that would arise because of the using of under-scores
    in the Hostname, for either the machine itself or for say the memory
    channel hostname.
    
    						Thanks,
    
    			Matt
1861.5cluster_cnxNETRIX::"mcdonald@decatl.alf.dec.com"John McDonaldMon Mar 31 1997 16:048
If an underscore is not a legal character, why does the Trucluster
installation automatically insert a node name called 'cluster_cnx'
into the hosts file?

John McDonald
Atlanta CSC

[Posted by WWW Notes gateway]
1861.6This hased been filed as a QARNETRIX::"myrdal@zk3.dec.com"Gregory P. MyrdalWed Apr 02 1997 18:027
This problem has been filed as QAR 46932 (unfortunately since
June 1996).  I am requesting that this be resolved in the next
release.

-- Greg
[Posted by WWW Notes gateway]
1861.7Will be fixed in wave 4NETRIX::"myrdal@zk3.dec.com"Gregory P. MyrdalThu Apr 03 1997 13:5916
Hi,

I did a little more research on this topic and found out that the QAR
and the problem has been scheduled to be fixed in the wave 4 release.
It is incorrect (I assume simply because someone not being familiar
to rfc952) but since it does not seem to effecting anyone a fix in
wave 4 appears to be adequate.

BTW, a new install could change the cluster_cnx to a another name
if they wanted.  The reason that this is not being investigated
for wave35 is that rolling upgrade causes problems.  Ie. its not
seamless.  If there were problems as a result of this, engineering
is willing to look further into the problem.

-- Greg
[Posted by WWW Notes gateway]