Description of problem: I'm sorry of the fact that I make a very vague ticket, yet I don't really know what component of Fedora is responsible of the issues I face. I've made several researches yet I haven't found a similar ticket, which surprises me a bit. Each time I launch a new software, it faces difficulties to reach an host the first time it tries. For example, when I start Firefox, it can't reach any hosts of the pages I was viewing before I log out. When I reload the pages, the connection is made without any problems. The same goes for git. For instance, if I try to make a pull, the first attempt of the session will fail, yet every others attempts I may do during my Fedora session will success. ``` dir❯ git pull error: Could not resolve host: (nil); Name or service not known while accessing https://github.com/ dir❯ git pull Already up-to-date ``` The same issue appears with yum, gnome-online-account… The interesting part of it is that it occurs only once per application and per session. I mean that once I log in on my Fedora Session, I start first Firefox, it will failed only once (it happens that it fails randomly time to time in long session). Then I make a git pull, after Firefox succeeded to connect, and git will fail once too. Gnome-online-account will notify me about the fact it can't connect to my online accounts, yet if I told it to retry, it will work. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. Start Fedora 2. Open an application that needs to connect to the Internet 3. Watch it fails connecting 4. Retries, it works Actual results: The connection will not succeed on first try, but will work most tries after it. Expected results: The connection should succeed on first try. Additional info: I don't face this issue with Windows 7 on the same PC. I know this ticket might be a duplicate, yet my research didn't lead me to a similar ticket.
I have been getting this for the last few days. Almost always failing the first time and more often than not passing the second time for a period of time (presumably cache time). Google Chrome and the like don't seem to have a problem (presumably because they aggressively retry). dig shows a FORMERR on the failed dns requests: [root@agpc ~]# dig 'www.bbc.co.uk' ;; Got bad packet: FORMERR 58 bytes b2 00 81 20 00 01 00 01 00 00 00 01 03 77 77 77 .............www 03 62 62 63 02 63 6f 02 75 6b 00 00 01 00 01 c0 .bbc.co.uk...... 0c 00 01 00 01 00 00 01 2c 00 04 d4 3a f6 5f 00 ........,...:._. 00 00 00 00 00 00 00 00 00 00 .......... Wireshark seems to show sane responses for both the successful and failed queries. The only common pattern i can see is that all the failed ones have the "Answer Authenticated" flag set and all the ones that succeed do not.
After some more research it appears the DNS errors all come from my router (a BT HomeHub3 acting as a DNS forwarder/cache). It also appears the errors started around the same time as an automated firmware update on the router. Resolving addresses directly from any other DNS server or the router's own upstream servers works fine. Google Chrome also still works because it is using it's own DNS servers. It is however still odd that the packets appear to be valid and both Windows and Android have no problems at all with them. So two immediate questions arise. 1. Reporter, Are you using similar hardware? If not then mine is probably a separate bug. 2. Does somebody with more knowledge than me know if the packets in the attached pcap capture (first one working, second one failing) look valid? If not then i will have to have strong words with my ISP. The workaround i am using for the moment is setting outside DNS servers manually (e.g. 8.8.8.8 and 8.8.4.4)
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Fedora 18 changed to end-of-life (EOL) status on 2014-01-14. Fedora 18 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.