On Wed, 2012-10-03 at 10:11 -0700, jackson byers wrote: > I don't really understand your response here. > To repeat, the imac is working, apparently with full internet access, > via *wired* connection. The prior use of wireless internet on the imac, > has been turned off. Well, (a) I'm not really sure where you trying to use this 10-digit key, and (b) even wired links can use encryption or require some form of authentication. Granted, that it's not common for wired links to be set up that way, but it is possible to do so. > the data in resolv.conf appear correct. > > bash-3.2$ dig ns1.pacbell.net > > ; <<>> DiG 9.6-ESV-R4-P3 <<>> ns1.pacbell.net > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2897 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;ns1.pacbell.net. IN A > > ;; AUTHORITY SECTION: > pacbell.net. 7200 IN SOA ns1.pbi.net. postmaster.pbi.net. 2012100300 3600 900 604800 7200 > > ;; Query time: 1071 msec > ;; SERVER: 192.168.1.254#53(192.168.1.254) > ;; WHEN: Wed Oct 3 09:26:10 2012 > ;; MSG SIZE rcvd: 88 > > Does this tell me anything? is ns1.pbi.net a DNS number I could/should use? > In addition to the two I now have? It tells you that there isn't a ns1.pacbell.net, as there is no "answer" section in the results from dig. The question section lists what your query was. The authority section tells you who responded. The answer section would tell you your answer, but there is no answer, and therefore no IP for the asked about address. i.e. There is no ns1.pacbell.net However, in the results that you got back, the authority section tells you about ns1.pbi.net being the start of authority (SOA) for name serving for pacbell.net. So, there's a chance that you can use ns1.pbi.net as a name server. But... 1. It may be that they don't let their customers directly access that name server. It may only be that *that* name server provides the records for their own domain names, and doesn't work as a resolver for all addresses on the internet. Try it, and see if it works for you. 2. You want to put the numerical IP address for it into your resolv.conf file, not the fully qualified domain name. dig ns1.pbi.net ;; ANSWER SECTION: ns1.pbi.net. 172539 IN A 206.13.28.11 Try using 206.13.28.11 as one of your nameserver, and see how you go. The other way to find out name servers on an ISP, is to ask for the NS records for a domain name. e.g. dig pacbell.net NS ;; ANSWER SECTION: pacbell.net. 172800 IN NS ns1.pbi.net. pacbell.net. 172800 IN NS ns2.pbi.net. Again, the same thing I brought up in point 1 stands. They could just be the holders for domain records for packbell.net own addresses. You'd have to try querying those name servers for other (outside) addresses, to see if they work. > I did pull the new modem power cable, > after plugging back in the system took a while to come fully on. > No help on internet: > trying to start google chrome, still getting message invalid DNS. Which tends to suggest that whatever name servers are configured in your resolv.conf files, they're not providing answers to the programs on your computer, namely your browser, when the browser queries addresses. If the dig tool, on the same computer, does work. i.e. If trying to web browse to www.example.com produces an invalid DNS error message in your browser, but doing "dig example.com" does come up with an IP, that suggests another problem with your network set up. Such as, the /etc/nsswitch.conf file, which has a "hosts:" section that lists how names will be looked up. Usually, it said files then dns, which means first look in the /etc/hosts file, then try a DNS query. e.g. hosts: files dns Or that your browsers are configured to go through a proxy, and that proxy is not working. > It seems I don't need to correct faults in the DNS numbers, > so does it still make sense to restart NetworkManager? > Exactly how would I restart it? > -- chkconfig? > -- some systemd command? In ye olde days, it was "service NetworkManager restart", but I haven't played with restarting services on the newer versions of Fedora to remember the incantation. If there's a GUI tool installed that lists all your services, there will be a way to stop/start/restart it from with there. > I did pull the new modem power cable, > after plugging back in the system took a while to come fully on. > No help on internet: > trying to start google chrome, still getting message invalid DNS. Do all browser programs on that computer fail? Have you quit and restarted the browser since pulling the modem cable? Browser tend to cache DNS results, themselves. So if they've got an answer, once, they don't bother asking the DNS server again, for the same IP. Sometime they can get stuck, if the first answer failed. Do other things work? How are you doing email, at the moment? Summary: If you have some DNS server addresses to try out, try them with the dig tool (e.g. dig www.example.com), and see if you get valid answers. When you find working ones, you can put them in your resolv.conf file. You need at least one, I think it currently supports up to three. The first one will always be asked first, the next ones only get asked if the prior ones fail to respond. List the quickest DNS server first. You do not have to use DNS servers provided by your ISP, some ISP's have really awful ones. A number of people use Google's DNS servers, Google has called 8.8.8.8 a public DNS server, so it's a fairly safe bet that you're allowed to use it. You can even run your own one, but I'd try getting working servers from someone else, first, before going down the route of configuring your own DNS server. Check your /etc/nsswitch.conf file for a "hosts: files dns" line, that's the usual working set of instructions for it. Check that there isn't another conflicting "hosts:" line in it. Check whether you browse through proxies. -- [tim@localhost ~]$ uname -r 2.6.27.25-78.2.56.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
