Knowledge Base Contributions

Below is a list of the knowledge base entries that Brian Coogan has contributed to:

• When I try to compile djbdns I get an error about errno? what gives?
  

• How do I prevent memory allocation failures on OpenBSD?
  

• Can tinydns/dnscache support ddns?
  

• What is a good free dynamic DNS service using djbdns?
  

• How do I point resolv.conf to the locally running dnscache AND rbldns?
  

• Aren't there all sorts of problems with djbdns? I've heard lots of bad things!
  

• How do I eliminate duplicate lines from my "data" file?
  

• How do I determine what version of djbdns or Bind is running on a server (fingerprinting)?
  

• How do I force multilog to rotate logs?
  

• My client keeps on getting "451 See http://pobox.com/~djb/docs/smtplf.html" when I try to send email!!
  My client keeps on getting "451 See http://pobox.com/~djb/docs/smtplf.html" when I try to send email!!
  

• How do I stop djbdns logging? Or limit the log output?
  

• How can I send a recursive query to a specific server?
  

• qmail is refusing messages with "451 See http://pobox.com/~djb/docs/smtplf.html" - help!
  How do I allow packages that use bare LF in SMTP to talk to qmail?
  

• What is djbdns FOR? (It replaces Bind - but who uses Bind, and for what? Should I be reading this?)
  

• I can't query dnscache for domains that I host with tinydns w/o including my ip in the @ file?
  

• How well does djbdns perform? What are the benchmark statistics?
  

• I have a large ISP; how can I structure my DNS architecture for load balancing?
  

• How do I get qmail-send and qmail-smtpd to run under daemontools?
  

• How do I shutdown qmail?
  How do I shutdown qmail outbound and inbound email?
  

• How do I get DNS to answer my private IP's and forward all others to an external DNS server?
  

• Why do I get multiple identical IP addresses returned for some hosts?
  

• How do I get tinydns or dnscache to listen on more than one IP address?
  

• My tinydns server/dnscache isn't answering/appears locked up - why?
  

• Does djbdns come with man pages?
  

• Why does dnscache respond to queries from some hosts but not others?
  

• Is there something special about the @ file? I want to list ORSC servers there.
  How do I configure djbdns to use alternate servers for some domains? (eg: OpenNIC)
  

• What support does djbdns have for RP or SRV or other newer record types?
  

• What ipv6 or AAAA support does djbdns provide?
  

• Does djbdns respond to TCP queries?
  

• How do I calculate tai64 timestamps for my data file given human readable local time?
  

• When I test my Bind server with dnsq, I get "weird ra" in the output - what does that mean?
  

• When I test my new djbdns setup with nslookup I get timeouts and other weird errors - why?
  

• How do I set up djbdns and Windows 2000 DNS to work together?
  Shouldn't I just replace djbdns with Windows 2000 DNS everywhere?
  

• I know how to add, but how do I DELETE records from tinydns without editing the data file manually?
  

• How do I make my dnscache act as a forwarding proxy server?
  How do I implement split horizon DNS using djbdns?
  

• What records do the various tinydns data lines generate?
  

• What should I use instead of CNAMEs?
  

• Why are CNAMEs considered evil?
  

• How do I block dnscache from responding to a single IP address?
  

• How do I run dnscache and tinydns on the same IP address?
  

• How do you expire a record from dnscache?
  

• What is the logfile format?
  

• What are the alternatives for Unix-based DNS servers?
  

• What is a "content" vs a "proxy" DNS server?
  What is the different paradigm that djbdns uses?
  What is the different paradigm that djbdns uses?
  

• How is djbdns more secure?
  Is there really an unclaimed $500 cash reward for security holes?
  How is djbdns more secure?
  

• How do I subscribe to the djbdns mailing list?
  How do I ask the djbdns mailing list for help?
  How do I subscribe to the djbdns mailing list?
  

• How do I get started with djbdns?
  How do I get started with djbdns?
  

• What is djbdns?
  What is djbdns?
  

• i am facing problem when i send a mail from outlook express it says "553 ,sorry that domain isn't in my list of rcphosts(#5.7.1)"
  

• How can I display the output of passthru or system with newline chars? i.e. passthru("ps ax")
  

• How do I stop my fastforward aliases from sending more than one copy of an email to people?
  How can I make fastforward suppress duplicates?
  

• Why does Outlook 2000 stop parsing headers sometimes after they've been through ofmipd?
  Why does Outlook 2000 sometimes screw up attachments?
  

• How can I empty the queue?
  How can I force a queue rerun imediately?
  

• If I have to, what is the best way to kill qmail-send?