MIME-Version: 1.0
References: <CA+ONtZ4a9mJhBX2p4Ug8NSR+tHHuVvi-Vrcm3QyGMjkwNsuRPw@mail.gmail.com>
 <CANzqJaARXp8O6tzsB=uG8tt3pPub7aYhTA5VvZHNJAW7eeR3Og@mail.gmail.com>
 <CA+ONtZ4HiO5FSZcpmaNzLU3brfu_iRhc0QSUQFR4uypXRrGM7Q@mail.gmail.com>
 <2015f756-b188-4840-922d-6f927997ab51@aklaver.com> <CA+ONtZ4+a46c1CHs8=E0vo8xJRuzUi5Xnxbu-rL3KoRdkf1cig@mail.gmail.com>
In-Reply-To: <CA+ONtZ4+a46c1CHs8=E0vo8xJRuzUi5Xnxbu-rL3KoRdkf1cig@mail.gmail.com>
From: "David G. Johnston" <david.g.johnston@gmail.com>
Date: Mon, 22 Apr 2024 14:59:17 -0700
Message-ID: <CAKFQuwagbtfSjzeu6SgZX7AbsiisuUXhKKiQJ2aBRpaGMjAN0A@mail.gmail.com>
Subject: Re: issue with reading hostname
To: Atul Kumar <akumar14871@gmail.com>
Cc: Adrian Klaver <adrian.klaver@aklaver.com>, pgsql-general <pgsql-general@postgresql.org>
Content-Type: multipart/alternative; boundary="000000000000bc1a130616b68efd"
Archived-At: <https://www.postgresql.org/message-id/CAKFQuwagbtfSjzeu6SgZX7AbsiisuUXhKKiQJ2aBRpaGMjAN0A%40mail.gmail.com>
Precedence: bulk

--000000000000bc1a130616b68efd
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

On Mon, Apr 22, 2024 at 2:54=E2=80=AFPM Atul Kumar <akumar14871@gmail.com> =
wrote:

> I mean, Once I change the hostname then how will the socket read the new
> hostname ? Does it require a postgres service restart ?
>
>>
>>
-h doesn't strictly mean hostname (the wording choice here does seem
problematic), rather it is simply a direct specification of how and
where the psql client looks for and connects to the server.  When the
specification is a filename it is that file that is used and hostname and
any other networking-related stuff is immaterial.  Though the server does
choose to borrow the port number 5432 from networking to construct the
unique name out of convenience.

David J.

--000000000000bc1a130616b68efd
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:arial,helvetica,sans-serif"><span style=3D"font-family:Arial,Helve=
tica,sans-serif">On Mon, Apr 22, 2024 at 2:54=E2=80=AFPM Atul Kumar &lt;<a =
href=3D"mailto:akumar14871@gmail.com">akumar14871@gmail.com</a>&gt; wrote:<=
/span><br></div></div><div class=3D"gmail_quote"><blockquote class=3D"gmail=
_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204=
,204);padding-left:1ex"><div dir=3D"ltr">I mean, Once I change the hostname=
 then how will the socket read the new hostname ? Does it require a postgre=
s service restart ?</div><div class=3D"gmail_quote"><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,=
204,204);padding-left:1ex"><br></blockquote></div></blockquote><div><br></d=
iv><div class=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-s=
erif">-h doesn&#39;t strictly mean hostname (the wording choice here does s=
eem problematic), rather it is simply a direct specification of how and whe=
re=C2=A0the psql client looks for and connects to the server.=C2=A0 When th=
e specification is a filename it is that file that is used and hostname and=
 any other networking-related stuff is immaterial.=C2=A0 Though the server =
does choose to borrow the port number 5432 from networking to construct the=
 unique name out of convenience.</div><div class=3D"gmail_default" style=3D=
"font-family:arial,helvetica,sans-serif"><br></div><div class=3D"gmail_defa=
ult" style=3D"font-family:arial,helvetica,sans-serif">David J.</div><div cl=
ass=3D"gmail_default" style=3D"font-family:arial,helvetica,sans-serif"><br>=
</div></div></div>

--000000000000bc1a130616b68efd--