Hi Nick,
Thanks for your Reply.
It seems in QNX we can configure multiple logical IP Addresses in Same Subnet on a particular ethernet interface.
Now since this is not blocked by OS, we want to somehow control which IP Address the OS uses as Source IP while generating DNS Traffic. Is this possible somehow?
Further needed help on another related topic:
While we configured the DNS Server IP in resolv.conf:
- We were observing that on calling "gethostbyname()" API, OS was generating DNS Request and on not getting any reply it was making re-attempts (6 times or so) before returning failure.
- If 2 DNS Server IPs are configured in resolv.conf then we observe that the delay between subsequent attempts further increases with period of each attempt also increasing incremently.
- Also we observed that when resolv.conf is in use, then on executing "arp -a" or doing FTP, we see that OS Starts generating DNS Traffic for each IP in ARP Table and there is a delay in output.
Queries:
- In Linux we know it is possible to control the number of attempts and interval between each attempt by configuring parameters in resolv.conf. Is the same also possible in QNX?
- How can we stop generation of DNS Traffic on execution of commands like "arp -a" or ftp?
Would really appreciate if you can provide some pointers for these queries.
Thanks and Regards
Sajal
BR
Sajal