gpperfmon: update gpperfmon install user doc IPv6
* gpperfmon: update gpperfmon install user docs IPv6
Follow up for commit
[ci-skip]
<li id="ou143437">Updates the <codeph>$MASTER_DATA_DIRECTORY/pg_hba.conf</codeph> file. The
utility adds the following lines to the host-based authentication file
(<codeph>pg_hba.conf</codeph>):<codeblock>local gpperfmon gpmon md5
-host all gpmon 127.0.0.1/28 md5</codeblock><note>
+host all gpmon 127.0.0.1/28 md5
+host all gpmon ::1/128 md5</codeblock><note>
<p>It may be necessary to edit the <codeph>pg_hba.conf</codeph> file after running the
<codeph>gpperfmon_install</codeph> utility to limit the <codeph>gpmon</codeph>
role's access to databases or to change the authentication method. After you edit the
@@ -45,10 +46,11 @@ host all gpmon 127.0.0.1/28 md5</codeblock><note>
<li>To limit access to just the <codeph>gpperfmon</codeph> database edit the
<codeph>pg_hba.conf</codeph> file and in the host entry for the
<codeph>gpmon</codeph> user change the second field from <codeph>all</codeph> to
- <codeph>gpperfmon</codeph>:<codeblock>host gpperfmon gpmon 127.0.0.1/28 md5</codeblock></li>
+ <codeph>gpperfmon</codeph>:<codeblock>host <b>gpperfmon</b> gpmon 127.0.0.1/28 md5
+host <b>gpperfmon</b> gpmon ::1/128 md5</codeblock></li>
<li>
<p>The <codeph>gpperfmon_install</codeph> utility assumes the default MD5
- authentication method. Greenplum Database may optionally be configured to use the
+ authentication method. Greenplum Database can optionally be configured to use the
SHA-256 or SHA-256-FIPS hash algorithm to compute the password hashes saved in the
system catalog. This is incompatible with the MD5 authentication method, which
expects an MD5 hash or clear text password in the system catalog. Because of this,
@@ -57,15 +59,15 @@ host all gpmon 127.0.0.1/28 md5</codeblock><note>
<codeph>gpperfmon_install</codeph> utility to change the authentication method
for the <codeph>gpmon</codeph> role from <codeph>md5</codeph> to
<codeph>password</codeph>:<codeblock>local gpperfmon gpmon md5
-host all gpmon 127.0.0.1/28 password</codeblock></p>
+host all gpmon 127.0.0.1/28 <b>password</b>
+host all gpmon ::1/128 <b>password</b></codeblock></p>
<p>The <codeph>password</codeph> authentication method submits the user's clear text
password for authentication and should not be used on an untrusted network. See
"Protecting Passwords in Greenplum Database" in the <i>Greenplum Database
Administrator Guide</i> for more information about configuring password
hashing.</p>
</li>
- </ul>
- </note></li>
+ </ul></note></li>
<li id="ou143384">Updates the password file (<codeph>.pgpass</codeph>). In order to allow
the data collection agents to connect as the <codeph>gpmon</codeph> role without a
password prompt, you must have a password file that has an entry for the
