How to scan New network card or any other devices in linux

AmitM asked:

I am trying to add a New Network card into Machine which has Linux installed. But my problem is, I cannot reboot the Linux host to detect the new network card, is there any workaround for this?
I know, linux supports adding new disk without reboot by scanning scsi bus.
Any idea, How to scan New network card?

Kernel Version = 2.6.18-308.el5

My answer:


If the card isn’t detected and configured instantly when you hotplug it, then run udevadm trigger as root.


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