JINMEI Tatuya / ???? wrote: > If so, and if servers always return SERVFAILs to any query, it may > indicate a different type of problem than merely exhausting file > descriptors. If you also serve an authoritative zone in that server, > you may want to check whether queries for names in the authoritative > zone are responded. When the servfail errors occur, I want to *think* that we are able to still resolve names for our authoritative zone. However - I will need to test this again to be sure though. When the servfail errors happen - we definitely cannot resolve queries for names we are not authoritative for.
Also, when this happens, I notice that the output from "lsof | grep named | wc -l" jumps from around 40 to ~1000. Do you believe this is related to the errors - or just a coincidence that this number rises when we are having problems resolving external names? > You may also want to check whether the server > returns a query for "version.bind TXT CH" (after configuring the > server to respond to it). > > What would this tell or buy me? Currently, the version is removed from our named.conf file. Thanks, Walter
