我有一台 Debian VPS,我收到一堆 ssh/email(postfix、dovecot)登录失败信息。在日志中我可以看到用户名,但看不到密码。有没有办法同时监控两者?
日志示例:
auth: Info: passwd-file([email protected],xx.xxx.xxx.xxx): unknown user
postfix/smtpd[16630]: warning: unknown[xx.xxx.xxx.x]: SASL LOGIN authentication failed: Invalid authentication mechanism
spamc[15825]: connect to spamd on ::1 failed, retrying (#1 of 3): Connection refused