虚拟机重启，Docker镜像无法连接

爱被打了一巴掌 2022-11-03 00:50 336阅读 0赞

虚拟机重新启动，Docker镜像也启动，但无法远程连接该镜像，如何解决该问题呢？

1、修改文件，如下所示：

#  This file is part of systemd.
    #
    #  systemd is free software; you can redistribute it and/or modify it
    #  under the terms of the GNU Lesser General Public License as published by
    #  the Free Software Foundation; either version 2.1 of the License, or
    #  (at your option) any later version.
    
    # See sysctl.d(5) and core(5) for for documentation.
    
    # To override settings in this file, create a local file in /etc
    # (e.g. /etc/sysctl.d/90-override.conf), and put any assignments
    # there.
    
    # System Request functionality of the kernel (SYNC)
    #
    # Use kernel.sysrq = 1 to allow all keys.
    # See http://fedoraproject.org/wiki/QA/Sysrq for a list of values and keys.
    kernel.sysrq = 16
    
    # Append the PID to the core filename
    kernel.core_uses_pid = 1
    
    # Source route verification
    net.ipv4.conf.default.rp_filter = 1
    net.ipv4.conf.all.rp_filter = 1
    
    # Do not accept source routing
    net.ipv4.conf.default.accept_source_route = 0
    net.ipv4.conf.all.accept_source_route = 0
    
    # Promote secondary addresses when the primary address is removed
    net.ipv4.conf.default.promote_secondaries = 1
    net.ipv4.conf.all.promote_secondaries = 1
    
    # Enable hard and soft link protection
    fs.protected_hardlinks = 1
    fs.protected_symlinks = 1
    
    #默认值为0，0表示禁止数据包转发，1表示允许
    net.ipv4.ip_forward = 1

2、重新启动虚拟机—>执行sysctl net.ipv4.ip\_forward指令，如下图所示：

[root@bogon ~]# sysctl net.ipv4.ip_forward
    net.ipv4.ip_forward = 1
    [root@bogon ~]#

3、启动Docker镜像，至此问题解决。