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Top Forums UNIX for Beginners Questions & Answers Webscrab proxy creates loads of TCP6 connections despite IPV6 being down Post 303043503 by Neo on Wednesday 29th of January 2020 10:42:49 PM
Old 01-29-2020
Also,

If you do not want your proxy server to listen on the kernel loopback interface (127.0.0.1), you can easily fix this by configuring your proxy server to only listen on an IP address.

Just like mysql and other daemon processes, you can configure it to listen on 127.0.0.1 or not.

For example, many people configure mysql to only listen on 127.0.0.1 because they do not want any external connections to mysql; and 127.0.0.1 does not permit external connections.

If you don't want your proxy server to listen on 127.0.0.1, then you simply configure your proxy server to not listen on 127.0.0.1.

From the linux code base:

Code:
/* The loopback device is special if any other network devices
 * is present in a network namespace the loopback device must
 * be present. Since we now dynamically allocate and free the
 * loopback device ensure this invariant is maintained by
 * keeping the loopback device as the first device on the
 * list of network devices.  Ensuring the loopback devices
 * is the first device that appears and the last network device
 * that disappears.
*/

 

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OCF_HEARTBEAT_MYSQL()													     OCF_HEARTBEAT_MYSQL()

NAME
ocf_heartbeat_mysql-proxy - Manages a MySQL Proxy daemon SYNOPSIS
mysql-proxy [start | stop | monitor | meta-data | validate-all] DESCRIPTION
This script manages MySQL Proxy as an OCF resource in a high-availability setup. Tested with MySQL Proxy 0.7.0 on Debian 5.0. SUPPORTED PARAMETERS
binary Full path to the MySQL Proxy binary. For example, "/usr/sbin/mysql-proxy". (optional, string, default /usr/sbin/mysql-proxy) defaults_file Full path to a MySQL Proxy configuration file. For example, "/etc/mysql-proxy.conf". (unique, optional, string, no default) proxy_backend_addresses Address:port of the remote backend-servers (default: 127.0.0.1:3306). (optional, string, default 127.0.0.1:3306) proxy_read_only_backend_addresses Address:port of the remote (read only) slave-server (default: ). (optional, string, default 127.0.0.1:3306) proxy_address Listening address:port of the proxy-server (default: :4040). You can also specify a socket like "/tmp/mysql-proxy.sock". (optional, string, default :4040) log_level Log all messages of level (error|warning|info|message|debug|) or higher. An empty value disables logging. (optional, string, no default) keepalive Try to restart the proxy if it crashed (default: ). Valid values: true or false. An empty value equals "false". (optional, string, no default) admin_address Listening address:port of the admin-server (default: 127.0.0.1:4041). (optional, string, default 127.0.0.1:4041) admin_username Username to allow to log in (default: ). (optional, string, no default) admin_password Password to allow to log in (default: ). (optional, string, no default) admin_lua_script Script to execute by the admin plugin. (optional, string, no default) parameters The MySQL Proxy daemon may be called with additional parameters. Specify any of them here. (optional, string, no default) pidfile PID file (unique, optional, string, default /var/run/resource-agents/mysql-proxy-default.pid) SUPPORTED ACTIONS
This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 30s. stop Stops the resource. Suggested minimum timeout: 30s. reload Suggested minimum timeout: 30s. monitor Performs a detailed status check. Suggested minimum timeout: 20s. Suggested interval: 60s. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 30s. meta-data Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5s. EXAMPLE
The following is an example configuration for a mysql-proxy resource using the crm(8) shell: primitive p_mysql-proxy ocf:heartbeat:mysql-proxy op monitor depth="0" timeout="20s" interval="60s" SEE ALSO
http://www.linux-ha.org/wiki/mysql-proxy_(resource_agent) AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors) OCF_HEARTBEAT_MYSQL()
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