我正在尝试确保PostgreSQL客户端到Azure PostgreSQL服务器(版本10.7)的连接正在使用TLSv1.2。当我执行psql
命令时,连接头会显示协议TLSv1.2
:
[user ~]# psql -h psql_server.postgres.database.azure.com -p 5432 -U psql_admin_accnt@psql_server -W postgres
Password:
psql (10.7)
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
Type "help" for help.
但是,当我查询pg_stat_ssl
表时,我得到的信息是当前连接正在使用TLSv1.1
,并且cipher
信息也不相同。
postgres=> SELECT * FROM pg_stat_ssl;
pid | ssl | version | cipher | bits | compression | clientdn
--------+-----+---------+----------------------+------+-------------+----------
168648 | t | TLSv1.1 | ECDHE-RSA-AES256-SHA | 256 | f |
(1 row)
哪些信息是正确的,我应该依靠?我的psql
连接确实使用TLSv1.2
还是从PostgreSQL系统表中看到的是TLSv1.1
。
似乎该问题已由Microsoft自行解决
[user@host ~]$ /usr/pgsql-10/bin/psql "host=psql_server.postgres.database.azure.com port=5432 dbname=dbname user=psql_admin_accnt@psql_server sslmode=require sslrootcert=/path/to/BaltimoreCyberTrustRoot.cer"
Password:
psql (10.11)
SSL connection (protocol: TLSv1.2, cipher: ECDHE-RSA-AES256-GCM-SHA384, bits: 256, compression: off)
Type "help" for help.
dbname=> SELECT * FROM pg_stat_ssl WHERE pid = pg_backend_pid();
pid | ssl | version | cipher | bits | compression | clientdn
--------+-----+---------+-----------------------------+------+-------------+----------
812820 | t | TLSv1.2 | ECDHE-RSA-AES256-GCM-SHA384 | 256 | f |
(1 row)
dbname=> SELECT VERSION();
version
-------------------------------------------------------------
PostgreSQL 10.11, compiled by Visual C++ build 1800, 64-bit
(1 row)
现在,已正确返回TLS版本。