We help IT Professionals succeed at work.

Changing IBMi host name search priority - best practice

valmatic
valmatic asked
on
121 Views
Last Modified: 2019-01-18
Hi.  We haven't changed our network structure on the IBM I for years and only recently have a need to as all of our processes have been pretty much contained on the I.  I'm self taught in IBM maintenance and learning as I go but I think the changes I need to make are pretty benign but I need some advice.    

I noticed my host table is totally out of whack with my network so I need to remove and correct some entries.  I'm really thinking about only leaving those entries referencing my Virtual IP on the I and otherwise not using a host table.  Ultimately, I need to add some DNS entries and allow external resolution.  Currently my Host name search priority field under CHGTCPDMN is set to *LOCAL.  Is it necessary to change to *REMOTE to make DNS active?  Would this change require an IPL?   If I leave that setting at *LOCAL, Do I need to make a specific entry in my host table or will lookups query my host table and then automatically jump over to DNS for those  queries without a corresponding entry, provided I have the DNS server addresses listed?  
I guess my question(s) are, What is best practice in this case?   Do Host table changes or DNS changes require any service restarts or an IPL or can I just make these changes on the fly?
Comment
Watch Question

Expert for hire: IBM i, AIX, Linux, Windows, DB2, Performance, Security. EDI
CERTIFIED EXPERT
Commented:
This problem has been solved!
(Unlock this solution with a 7-day Free Trial)
UNLOCK SOLUTION

Author

Commented:
Hi Gary, Thanks for the great info.  I did read through the documentation through that link and it helped narrow the focus of what I really need to do but I think I just needed real speak vs. IBM speak..  So thanks for that.  In the Windows networking world, I make these changes without over-thinking it but, even though IBM is just another server OS, it has a lot of special needs and I find myself doubting or over-thinking my actions.  Anyway, thanks as usual..  Your insight is always welcome.

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions