Re: Is port 37 safe to let out?

From: Mikhail Zotov (muxaul_at_lenta.ru)
Date: 06/07/05

  • Next message: Menno Duursma: "Re: Is port 37 safe to let out?" 
    Date: 6 Jun 2005 20:54:30 -0700

    Menno Duursma wrote:
    > On Sun, 05 Jun 2005 21:41:41 -0700, Anthony Ewell wrote:
    > > matt_left_coast wrote:
    > >> Anthony Ewell wrote:
    >
    > >>> I am getting a lot of port 37 (time) outbound connection attempts on
    > >>> my iptables firewall.
    ...
    > >>> Is it safe to "let it (port 37) out?"
    >
    > Maybe, but i wouldn't. Unless you are on a LAN and have some box setup with
    > ntpd (or a cron job running "ntpdate") which provides "time" broadcasts to the
    > subnet you're on, for other machines - yours - to sync with.
    >
    > >> Outbound means you are trying to connect to a time server on the
    > >> internet.
    >
    > No it doesn't.
    >
    > >> If you want to sync to the atomic clocks, you need to let the packet
    > >> out.
    >
    > No you don't (or atleast not unless you have some atomic clocks within
    > your subnet/broadcast domain providing a time service to you (unlikely.))

    Menno, could you please explain your point.

    Mikhail

  • Next message: Menno Duursma: "Re: Is port 37 safe to let out?"