SphinxQL连接问题（守护进程正在侦听）

Question

我试图让我的SphinxQL安装在我的Ubuntu 16.04LTS环境中运行。但是，我无法连接到服务器。我使用的配置如下：

searchd
{
  listen            = 9306:mysql41
  log               = /var/log/sphinxsearch/searchd.log
  query_log         = /var/log/sphinxsearch/query.log
  read_timeout      = 5
  max_children      = 30
  pid_file          = /var/run/sphinxsearch/searchd.pid
  seamless_rotate   = 1
  preopen_indexes   = 1
  unlink_old        = 1
  binlog_path       = /var/lib/sphinxsearch/data
}

为了确认或守护程序正在运行，我执行了：sudo systemctl status sphinxsearch.service返回：

sphinxsearch.service - LSB: Fast standalone full-text SQL search engine
   Loaded: loaded (/etc/init.d/sphinxsearch; bad; vendor preset: enabled)
   Active: active (running) since Thu 2018-06-07 11:23:09 CEST; 12min ago
     Docs: man:systemd-sysv-generator(8)
  Process: 10552 ExecStop=/etc/init.d/sphinxsearch stop (code=exited, status=0/SUCCESS)
  Process: 10614 ExecStart=/etc/init.d/sphinxsearch start (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/sphinxsearch.service
           ├─10621 /usr/bin/searchd
           └─10622 /usr/bin/searchd

Jun 07 11:23:09 Serv001 sphinxsearch[10614]: listening on all interfaces, port=9306
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: Sphinx 2.2.9-id64-release (rel22-r5006)
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: Copyright (c) 2001-2015, Andrew Aksyonoff
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: Copyright (c) 2008-2015, Sphinx Technologies Inc (http://sphinxsearch.com)
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: precaching index 'I2455'
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: [1.4K blob data]
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: Copyright (c) 2001-2015, Andrew Aksyonoff
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: Copyright (c) 2008-2015, Sphinx Technologies Inc (http://sphinxsearch.com)
Jun 07 11:23:09 Serv001 sphinxsearch[10614]: sphinxsearch.
Jun 07 11:23:09 Serv001 systemd[1]: Started LSB: Fast standalone full-text SQL search engine.

要验证守护程序是否正在侦听，我执行了sudo lsof -i -P -n | grep LISTEN，它显示了我：

searchd   10622 sphinxsearch    8u  IPv4 423245474      0t0  TCP *:9306 (LISTEN)

但是，当我尝试与mysql -h0 -P9306联系时，它会在一段时间后返回我：ERROR 2002 (HY000): Can't connect to MySQL server on '0' (115)

注意：索引已经构建没有问题，因此之前已建立了数据库连接

注2：我遵循了这个documentation

那么，我错误的是我无法通过端口9306连接到SphinxQL？

修改 输出iptables -L：

Answer 1

从您的iptables看起来您将所有内容列入黑名单（请参阅INPUT链中的DROP行），然后将所选端口列入白名单。因此，要允许访问9306，您应该

iptables -A INPUT -p tcp --destination-port 9306 -j ACCEPT