Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

------------------------------
Andrew Smith
------------------------------

Dear Andrew

I did a Google search with "ibm i qshell dns" and found this Technote :  DNS Queries from PASE and QSH are failing at  https://www.ibm.com/support/pages/dns-queries-pase-and-qsh-are-failing.  It mentions about  /etc/resolv.conf file that you asked about.  Please follow its instruction to see if it helps or not.    

------------------------------
Chance favors only the prepared mind.
-- Louis Pasteur
------------------------------
Satid S.
------------------------------

Original Message:
Sent: Tue January 09, 2024 09:48 AM
From: Andrew Smith
Subject: DNS Settings in QSH vs Bash

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

------------------------------
Andrew Smith
------------------------------

Dear Andrew

I did a Google search with "ibm i qshell dns" and found this Technote :  DNS Queries from PASE and QSH are failing at  https://www.ibm.com/support/pages/dns-queries-pase-and-qsh-are-failing.  It mentions about  /etc/resolv.conf file that you asked about.  Please follow its instruction to see if it helps or not.    

------------------------------
Chance favors only the prepared mind.
-- Louis Pasteur
------------------------------
Satid S.

Original Message:
Sent: Tue January 09, 2024 09:48 AM
From: Andrew Smith
Subject: DNS Settings in QSH vs Bash

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

------------------------------
Andrew Smith
------------------------------

Andrew, if you need a quick fix for specific hosts, you can also add host table entries in green screen. I have for instance SSH picking those up in PASE, even though they are not being resolved by DNS. 

Dear Andrew

I did a Google search with "ibm i qshell dns" and found this Technote :  DNS Queries from PASE and QSH are failing at  https://www.ibm.com/support/pages/dns-queries-pase-and-qsh-are-failing.  It mentions about  /etc/resolv.conf file that you asked about.  Please follow its instruction to see if it helps or not.    

------------------------------
Chance favors only the prepared mind.
-- Louis Pasteur
------------------------------
Satid S.

Original Message:
Sent: Tue January 09, 2024 09:48 AM
From: Andrew Smith
Subject: DNS Settings in QSH vs Bash

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

------------------------------
Andrew Smith
------------------------------

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

STRQSH

                                                         QSH Command Entry         
                                                                                   
   $                                                                               
 > dig nra.org                                                                     
   qsh: 001-0019 Error found searching for command dig. No such path or directory. 
   $                                                                               

F3 exit

CALL QP2TERM

                                                      /QOpenSys/usr/bin/-sh
                                                                           
  $                                                                        
> dig nra.org                                                              
  /QOpenSys/usr/bin/-sh: dig:  not found.                                  
  $                                                                        

IBM i 7.5, 

PTF Group             Level
SF99959                  42
SF99958                  23
SF99957                   3
SF99956                   1
SF99955                   7
SF99954                  11
SF99953                   2
SF99952                  12
SF99951                   5
SF99950                   5
SF99751                   4
SF99750               23306

SF99677                   4
SF99676                   6
SF99673                   3
SF99671                   9

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

It's in /usr/bin/dig for me. If it is not for you, not sure why. Maybe IBM did not compile it for 7.5. 

STRQSH

                                                         QSH Command Entry         
                                                                                   
   $                                                                               
 > dig nra.org                                                                     
   qsh: 001-0019 Error found searching for command dig. No such path or directory. 
   $                                                                               

F3 exit

CALL QP2TERM

                                                      /QOpenSys/usr/bin/-sh
                                                                           
  $                                                                        
> dig nra.org                                                              
  /QOpenSys/usr/bin/-sh: dig:  not found.                                  
  $                                                                        

IBM i 7.5, 

PTF Group             Level
SF99959                  42
SF99958                  23
SF99957                   3
SF99956                   1
SF99955                   7
SF99954                  11
SF99953                   2
SF99952                  12
SF99951                   5
SF99950                   5
SF99751                   4
SF99750               23306

SF99677                   4
SF99676                   6
SF99673                   3
SF99671                   9

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

STRQSH

                                                         QSH Command Entry         
                                                                                   
   $                                                                               
 > dig nra.org                                                                     
   qsh: 001-0019 Error found searching for command dig. No such path or directory. 
   $                                                                               

F3 exit

CALL QP2TERM

                                                      /QOpenSys/usr/bin/-sh
                                                                           
  $                                                                        
> dig nra.org                                                              
  /QOpenSys/usr/bin/-sh: dig:  not found.                                  
  $                                                                        

IBM i 7.5, 

PTF Group             Level
SF99959                  42
SF99958                  23
SF99957                   3
SF99956                   1
SF99955                   7
SF99954                  11
SF99953                   2
SF99952                  12
SF99951                   5
SF99950                   5
SF99751                   4
SF99750               23306

SF99677                   4
SF99676                   6
SF99673                   3
SF99671                   9

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

I ran into this and found it very confusing myself.  It works like this:

   $                                                                                     
 > ping www.google.com                                                                   
   qsh: 001-0019 Error found searching for command ping. No such path or directory.      
   $                                                                                     
 > system ping www.google.com                                                            
   TCP3203:  Verifying connection to host system WWW.GOOGLE.COM at address 142.250.65.164
   TCP3215:  PING reply 1 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 2 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 3 from 142.250.65.164 took 39 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 4 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 5 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3211:  Round-trip (in milliseconds) min/avg/max = 38/38/39.                        
   TCP3210:  Connection verification statistics: 5 of 5 successful (100 %).              
   CPC2206:  Ownership of object QZSHSYSTEM in QTEMP type *USRSPC changed.               
   $                                                                                     
                                                                                         

STRQSH

                                                         QSH Command Entry         
                                                                                   
   $                                                                               
 > dig nra.org                                                                     
   qsh: 001-0019 Error found searching for command dig. No such path or directory. 
   $                                                                               

F3 exit

CALL QP2TERM

                                                      /QOpenSys/usr/bin/-sh
                                                                           
  $                                                                        
> dig nra.org                                                              
  /QOpenSys/usr/bin/-sh: dig:  not found.                                  
  $                                                                        

IBM i 7.5, 

PTF Group             Level
SF99959                  42
SF99958                  23
SF99957                   3
SF99956                   1
SF99955                   7
SF99954                  11
SF99953                   2
SF99952                  12
SF99951                   5
SF99950                   5
SF99751                   4
SF99750               23306

SF99677                   4
SF99676                   6
SF99673                   3
SF99671                   9

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

Steven,

I believe system tells it to run an os command.  For example

system crtbndrpg

actually ran something.  Therefore it's not running the same as these people are doing.  They were experiencing different results from running ping from the os vs ping from within qsh (without system).

I ran into this and found it very confusing myself.  It works like this:

   $                                                                                     
 > ping www.google.com                                                                   
   qsh: 001-0019 Error found searching for command ping. No such path or directory.      
   $                                                                                     
 > system ping www.google.com                                                            
   TCP3203:  Verifying connection to host system WWW.GOOGLE.COM at address 142.250.65.164
   TCP3215:  PING reply 1 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 2 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 3 from 142.250.65.164 took 39 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 4 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3215:  PING reply 5 from 142.250.65.164 took 38 ms. 256 bytes. TTL 58.             
   TCP3211:  Round-trip (in milliseconds) min/avg/max = 38/38/39.                        
   TCP3210:  Connection verification statistics: 5 of 5 successful (100 %).              
   CPC2206:  Ownership of object QZSHSYSTEM in QTEMP type *USRSPC changed.               
   $                                                                                     
                                                                                         

STRQSH

                                                         QSH Command Entry         
                                                                                   
   $                                                                               
 > dig nra.org                                                                     
   qsh: 001-0019 Error found searching for command dig. No such path or directory. 
   $                                                                               

F3 exit

CALL QP2TERM

                                                      /QOpenSys/usr/bin/-sh
                                                                           
  $                                                                        
> dig nra.org                                                              
  /QOpenSys/usr/bin/-sh: dig:  not found.                                  
  $                                                                        

IBM i 7.5, 

PTF Group             Level
SF99959                  42
SF99958                  23
SF99957                   3
SF99956                   1
SF99955                   7
SF99954                  11
SF99953                   2
SF99952                  12
SF99951                   5
SF99950                   5
SF99751                   4
SF99750               23306

SF99677                   4
SF99676                   6
SF99673                   3
SF99671                   9

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

Original Message:
Sent: 1/10/2024 7:32:00 AM
From: Robert Berendt
Subject: RE: DNS Settings in QSH vs Bash

What commands do you use to resolve?  Basically I am trying it here but ping, nslookup, telnet, tracert are all commands not found in STRQSH or CALL QP2TERM.

------------------------------
Robert Berendt IBMChampion

Original Message:
Sent: Tue January 09, 2024 09:48 AM
From: Andrew Smith
Subject: DNS Settings in QSH vs Bash

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew

------------------------------
Andrew Smith
------------------------------

Hi All

Is anyone on here familiar with the DNS setup, or rather differences, when accessing an IBM i through SSH to an interactive shell session vs QSH on a regular TN5250 session?

I have a weird one - in green screen DNS all works as expected (as per CFGTCP settings)

In QSH - I get a resolution failure for any attempts to resolve. It eventually times out with no servers found.

In Bash/KSH/SH directly through an SSH session it all works as expected.

In the QSHELL session, I can resolve stuff if I do "host destination_name DNS_server_ip" but unless I do that it fails to resolve.

Is there an environment variable here somewhere that tells it where to look? In AIX it would be done in /etc/resolv.conf - is that relevant?

This is on a V7R3 box if it makes any difference?

Thanks in advance

Cheers

Andrew