[GemStone-Smalltalk] Error with netldi, the connection to the repository is never made and the port becomes blocked

[James Foster via GemStone-Smalltalk]

Hi Ezequiel,

I’m glad that we have narrowed down the problem. From here, I’d say that getting reverse DNS working with Dynamic IP depends on the network tools used for each and is beyond the scope of the gemstone-smalltalk mailing list ;-). You will need to take that up with your network management team, but now that you can describe the problem in terms they can understand you may get more satisfaction. 

My suggestions are to (1) upgrade GemStone to avoid the reverse DNS lookup; (2) get a static IP address for MW from the network administrators; (3) manually add the current dynamic IP address to /etc/hosts (and update as needed); or (4) stick to the VPN connection. I assume that upgrading GemStone is the only thing that is entirely under your control (and 3.3.3 is better than 3.2.x).

James

> On Mar 30, 2017, at 8:25 AM, brianstone via GemStone-Smalltalk <gemstone-smalltalk at lists.gemtalksystems.com> wrote:
> 
> Hi James, 
> 
> You found the problem :-)
> 
> I have upgraded the linux kernel but still having problems.
> 
> There is something wrong in my server or in the network, because 'nslookup'
> and 'host' fails to return the corresponding name of my MW (and of others
> machines too).
> But those commands works if I try to get the IP from the name.
> 
> a)With Ip adress:
>       - host 133.94.1.10
>        ;; connection timed out; no servers could be reached
> 
>       -nslookup 133.94.1.10
>        ;; Got SERVFAIL reply from 133.90.151.15, trying next server
>        ;; Got SERVFAIL reply from 133.90.151.131, trying next server
>        ;; connection timed out; trying next origin
>        ;; Got SERVFAIL reply from 133.90.151.15, trying next server
>        ;; Got SERVFAIL reply from 133.90.151.131, trying next server
>         Got SERVFAIL reply;; connection timed out; no servers could be
> reached
> 
> b)With name:
>         -host COR8-DES-GMARAN
>         *COR8-DES-GMARAN.sibs.net has address 133.94.1.10*
>         COR8-DES-GMARAN.sibs.net has IPv6 address 2002:855e:10a::855e:10a
> 
>         - nslookup COR8-DES-GMARAN
>         Server:         133.90.151.131
>         Address:        133.90.151.131#53
> 
>         Name:   COR8-DES-GMARAN.sibs.net
>         *Address: 133.94.1.10*
> 
> I have googled a lot, but I could not find something useful, or maybe yes
> but I didn't figured out that was important.
> 
> Following your advice, I can connect by adding my ip and name to the hosts
> file in ML, but it will only  work until my IP changes, because my IP is
> dynamic.
> 
> So, summarizing:
> 
> I have upgraded Linux kernel, but it does not fix the error.
> /nslookup / and /host/ onyl resolves the ip from the name, but not the name
> from the IP.
> 
> This seems to be some kind of problem with the DNS.
> I've connected via VPN to check DNS adresses and are the same that connected
> via wire.
> 
> Do you have any idea about what the problem can be?
> 
> I really appreciate your help James, you made a lot for me.
> Thanks!
> 
> Ezequiel
> 
> 
> 
> --
> View this message in context: http://forum.world.st/Error-with-netldi-the-connection-to-the-repository-is-never-made-and-the-port-becomes-blocked-tp4939542p4940569.html
> Sent from the Gemstone/S mailing list archive at Nabble.com.
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