[Bug 858493] Re: By default ntpd listens on all interfaces

[Clint Byrum]

Pedro, I fail to see how this is a bug at all. ntpd is a network
service, and while it would be a nice enhancement to the packaging to
have a low priority debconf question to ask if the user would like to
disable network capabilities, there are plenty of users who will want it
to listen on the network and respond to time requests.

Also you may be surprised to see that ntpd doesn't actually *respond* to
requests from ip's other than 127.0.0.1 or ::1

clint at clint-MacBookPro:~$ ntpq 192.168.1.105
ntpq> peers
192.168.1.105: timed out, nothing received
***Request timed out
ntpq> ^D
clint at clint-MacBookPro:~$ ntpq 127.0.0.1
ntpq> peers
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+host2.kingrst.c 204.9.54.119     2 u  261 1024  377   84.351   -7.327   9.672
-vf1.bbnx.net    128.4.1.1        2 u  223 1024  377  155.919   14.811   9.898
*ntp.yoinks.net  198.153.152.52   2 u  802 1024  377   50.601  -12.461  14.969
+ticker.pascogov 128.4.1.1        2 u  339 1024  377   78.144   -4.778   6.295
+europium.canoni 193.79.237.14    2 u  263 1024  377  165.478  -12.394   8.661
ntpq> 

So its not actually all that important at all.

I'll mark this as Opinion, so others can find it and weigh in on it. For
now though, I don't see a compelling argument for changing the way it
works right now.

** Changed in: ntp (Ubuntu)
       Status: New => Opinion

** Changed in: ntp (Ubuntu)
   Importance: Undecided => Wishlist

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https://bugs.launchpad.net/bugs/858493

Title:
  By default ntpd listens on all interfaces

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