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这篇文章主要介绍“如何设置CA证书来强化PostgreSQL的安全性”，在日常操作中，相信很多人在如何设置CA证书来强化PostgreSQL的安全性问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”如何设置CA证书来强化PostgreSQL的安全性”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

设置CACA应该是一台离线的处于高度安全环境中的计算机。

生成CA私钥

sudoopensslgenrsa-des3-out/etc/ssl/private/trustly-ca.key2048sudochownroot:ssl-cert/etc/ssl/private/trustly-ca.keysudochmod640/etc/ssl/private/trustly-ca.key

生成CA证书

sudoopensslreq-new-x509-days3650\-subj'/C=SE/ST=Stockholm/L=Stockholm/O=Trustly/CN=trustly'\-key/etc/ssl/private/trustly-ca.key\-out/usr/local/share/ca-certificates/trustly-ca.crtsudoupdate-ca-certificates

配置PostgreSQL服务器生成PostgreSQL服务器私钥

#Removedefaultsnakeoilcertssudorm/var/lib/postgresql/9.1/main/server.keysudorm/var/lib/postgresql/9.1/main/server.crt#Enterapassphrasesudo-upostgresopensslgenrsa-des3-out/var/lib/postgresql/9.1/main/server.key2048#Removethepassphrasesudo-upostgresopensslrsa-in/var/lib/postgresql/9.1/main/server.key-out/var/lib/postgresql/9.1/main/server.keysudo-upostgreschmod400/var/lib/postgresql/9.1/main/server.key

生成PostgreSQL服务器证书签署请求(CSR)

sudo-upostgresopensslreq-new-nodes-key/var/lib/postgresql/9.1/main/server.key-days3650-out/tmp/server.csr-subj'/C=SE/ST=Stockholm/L=Stockholm/O=Trustly/CN=postgres'

用CA私钥签署PostgreSQL服务器证书请求

sudoopensslreq-x509\-key/etc/ssl/private/trustly-ca.key\-in/tmp/server.csr\-out/var/lib/postgresql/9.1/main/server.crtsudochownpostgres:postgres/var/lib/postgresql/9.1/main/server.crt

创建根(root)证书=PostgreSQL服务器证书+CA证书

sudo-upostgressh-c'cat/var/lib/postgresql/9.1/main/server.crt/etc/ssl/certs/trustly-ca.pem>/var/lib/postgresql/9.1/main/root.crt'sudocp/var/lib/postgresql/9.1/main/root.crt/usr/local/share/ca-certificates/trustly-postgresql.crtsudoupdate-ca-certificates

授权访问

CREATEGROUPsslcertusers;ALTERGROUPsslcertusersADDUSERjoel;#/etc/postgresql/9.1/main/pg_hba.conf:hostsslnameofdatabase+sslcertusers192.168.1.0/24certclientcert=1

重启PostgreSQL

sudoservicepostgresqlrestart

PostgreSQL客户端设置从PostgreSQL服务器上复制根证书

mkdir~/.postgresqlcp/etc/ssl/certs/trustly-postgresql.pem~/.postgresql/root.crt

生成PostgreSQL客户端私钥

opensslgenrsa-des3-out~/.postgresql/postgresql.key1024#Ifthisisaserver,removethepassphrase:opensslrsa-in~/.postgresql/postgresql.key-out~/.postgresql/postgresql.key

生成PostgreSQL客户端证书签署请求并签署

#Replace"joel"withusername:opensslreq-new-key~/.postgresql/postgresql.key-out~/.postgresql/postgresql.csr-subj'/C=SE/ST=Stockholm/L=Stockholm/O=Trustly/CN=joel'sudoopensslx509-req-in~/.postgresql/postgresql.csr-CA/etc/ssl/certs/trustly-ca.pem-CAkey/etc/ssl/private/trustly-ca.key-out~/.postgresql/postgresql.crt-CAcreateserialsudochownjoel:joel-R~/.postgresqlsudochmod400-R~/.postgresql/postgresql.key

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