After my last update, I can no longer access the internet from either wired or wireless connection. I booted Knoppix from a flash drive and was easily able to connect via wifi and bring up the duckduckgo.com search engine, so it's not the hardware. My desktop machines and my wife's lap top all connect and run as well, so it's not the ISP or the connection. I tried running ifconfig, but got a message that that command wasn't installed on my system, and without a connection, I can't install it. Running apt-get update gets me a long list of sources with "failed to resolve". I searched the Debian forums and bug reports from my desk top machine, but found nothing like this. The connection icon indicates that the system is connected; it just won't resolve the DNS. Has anyone else seen this?
Thanks in advance.