2. 首页 > Linux教程 > 正文

Linux教程FG036-虚拟机网络适配配置命令

教程整理：风哥教程  |  更新时间：2026-01-25  |  教程分类：Linux教程  |  文档学习：13

1. 虚拟机网络模式概述

虚拟机网络模式决定了虚拟机与外部网络的连接方式，常见的网络模式包括NAT、桥接、仅主机和内部网络。不同的网络模式适用于不同的应用场景。更多学习教程www.fgedu.net.cn

参考Red Hat Enterprise Linux 10官方文档中的System administration章节 from LinuxDBA视频:www.itpux.com

# 查看虚拟机当前网络配置
# VBoxManage showvminfo “RHEL10-Learning” | grep -i nic
NIC 1: MAC: 080027123456, Attachment: NAT, Cable connected: on
NIC 2: disabled
NIC 3: disabled
NIC 4: disabled
NIC 5: disabled
NIC 6: disabled
NIC 7: disabled
NIC 8: disabled

# 查看可用的网络接口
# VBoxManage list bridgedifs
Name: enp0s3
GUID: 12345678-1234-1234-1234-123456789012
DHCP: enabled
IPAddress: 192.168.1.100
NetworkMask: 255.255.255.0
IPV6Address: fe80::1234:5678:90ab:cdef
IPV6NetworkMaskPrefixLength: 64
HardwareAddress: 00:11:22:33:44:55
MediumType: Ethernet
Status: Up
VBoxNetworkName: HostInterfaceNetworking-enp0s3

# 查看仅主机网络
# VBoxManage list hostonlyifs
Name: vboxnet0
GUID: 12345678-1234-1234-1234-123456789012
DHCP: disabled
IPAddress: 192.168.56.1
NetworkMask: 255.255.255.0
IPV6Address: fe80::1234:5678:90ab:cdef
IPV6NetworkMaskPrefixLength: 64
HardwareAddress: 0a:00:27:00:00:00
MediumType: Ethernet
Status: Up
VBoxNetworkName: HostInterfaceNetworking-vboxnet0

# 查看所有虚拟机
# VBoxManage list vms
“RHEL10-Learning” {12345678-1234-1234-1234-123456789012}
“RHEL10-Test” {12345678-1234-1234-1234-123456789013}
“RHEL10-Prod” {12345678-1234-1234-1234-123456789014}

生产环境建议：NAT模式适合测试环境，虚拟机可以访问外网但外网无法访问虚拟机；桥接模式适合生产环境，虚拟机与物理机在同一网络中；仅主机模式适合隔离环境，虚拟机只能与物理机通信。

2. NAT模式配置

NAT（Network Address Translation）模式是VirtualBox的默认网络模式，虚拟机通过主机的网络访问外网，外网无法直接访问虚拟机。学习交流加群风哥微信: itpux-com

# 配置NAT模式
# VBoxManage modifyvm “RHEL10-Learning” –nic1 nat

# 查看NAT配置
# VBoxManage showvminfo “RHEL10-Learning” | grep -A 10 “NIC 1”
NIC 1: MAC: 080027123456, Attachment: NAT, Cable connected: on
NIC 1 Settings: MTU: 0, Socket(send: 64, receive: 64), TCP Window(0x0)
NIC 1 Rule(0): name = ssh, protocol = tcp, host ip = , host port = 2222, guest ip = , guest port = 22
NIC 1 Rule(1): name = http, protocol = tcp, host ip = , host ip = , host port = 8080, guest ip = , guest port = 80

# 配置NAT端口转发
# 转发SSH端口（主机2222端口 -> 虚拟机22端口）
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “ssh,tcp,,2222,,22”

# 转发HTTP端口（主机8080端口 -> 虚拟机80端口）
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “http,tcp,,8080,,80”

# 转发HTTPS端口（主机8443端口 -> 虚拟机443端口）
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “https,tcp,,8443,,443”

# 转发MySQL端口（主机3306端口 -> 虚拟机3306端口）
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “mysql,tcp,,3306,,3306”

# 查看端口转发规则
# VBoxManage showvminfo “RHEL10-Learning” | grep -i natpf
NIC 1 Rule(0): name = ssh, protocol = tcp, host ip = , host port = 2222, guest ip = , guest port = 22
NIC 1 Rule(1): name = http, protocol = tcp, host ip = , host port = 8080, guest ip = , guest port = 80
NIC 1 Rule(2): name = https, protocol = tcp, host ip = , host port = 8443, guest ip = , guest port = 443
NIC 1 Rule(3): name = mysql, protocol = tcp, host ip = , host port = 3306, guest ip = , guest port = 3306

# 删除端口转发规则
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 delete ssh

# 测试端口转发
# ssh -p 2222 user@localhost
The authenticity of host ‘[localhost]:2222 ([127.0.0.1]:2222)’ can’t be established.
ECDSA key fingerprint is SHA256:1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added ‘[localhost]:2222’ (ECDSA) to the list of known hosts.
user@localhost’s password:
Last login: Wed Apr 2 10:00:00 2026 from 10.0.2.2
[user@rhel10-learning ~]$

风哥提示：NAT模式适合测试环境，虚拟机可以访问外网但不会影响物理网络。通过端口转发，可以从外部访问虚拟机中的服务，如SSH、HTTP等。

3. 桥接模式配置

桥接模式使虚拟机与物理机在同一网络中，虚拟机拥有独立的IP地址，可以与网络中的其他设备直接通信。学习交流加群风哥QQ113257174

# 配置桥接模式
# VBoxManage modifyvm “RHEL10-Learning” –nic1 bridged

# 指定桥接网络接口
# VBoxManage modifyvm “RHEL10-Learning” –bridgeadapter1 enp0s3

# 查看桥接配置
# VBoxManage showvminfo “RHEL10-Learning” | grep -A 5 “NIC 1”
NIC 1: MAC: 080027123456, Attachment: Bridged Interface ‘enp0s3’, Cable connected: on
NIC 1 Settings: MTU: 0, Socket(send: 64, receive: 64), TCP Window(0x0)

# 在虚拟机中配置网络
# 查看网络接口
# ip addr show
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: enp0s3: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 08:00:27:12:34:56 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.101/24 brd 192.168.1.255 scope global dynamic enp0s3
valid_lft 86399sec preferred_lft 86399sec
inet6 fe80::a00:27ff:fe12:3456/64 scope link
valid_lft forever preferred_lft forever

# 配置静态IP地址
# sudo nmcli connection modify “System eth0” ipv4.addresses 192.168.1.101/24
# sudo nmcli connection modify “System eth0” ipv4.gateway 192.168.1.1
# sudo nmcli connection modify “System eth0” ipv4.dns “8.8.8.8 8.8.4.4”
# sudo nmcli connection modify “System eth0” ipv4.method manual
# sudo nmcli connection up “System eth0”

# 测试网络连通性
# ping -c 4 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.123 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.098 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.105 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.110 ms
— 192.168.1.1 ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.098/0.109/0.123/0.009 ms

生产环境建议：桥接模式适合生产环境，虚拟机拥有独立的IP地址，可以与网络中的其他设备直接通信。建议为虚拟机配置静态IP地址，避免DHCP分配的IP地址变化。更多学习教程公众号风哥教程itpux_com

4. 仅主机模式配置

仅主机模式创建一个隔离的网络，虚拟机只能与物理机通信，无法访问外网，外网也无法访问虚拟机。

# 创建仅主机网络
# VBoxManage hostonlyif create
Interface ‘vboxnet1’ was successfully created

# 配置仅主机网络
# VBoxManage hostonlyif ipconfig vboxnet1 –ip 192.168.57.1 –netmask 255.255.255.0

# 启用DHCP服务器
# VBoxManage dhcpserver add –ifname vboxnet1 –ip 192.168.57.100 –netmask 255.255.255.0 –lowerip 192.168.57.101 –upperip 192.168.57.200

# 配置虚拟机使用仅主机网络
# VBoxManage modifyvm “RHEL10-Learning” –nic1 hostonly
# VBoxManage modifyvm “RHEL10-Learning” –hostonlyadapter1 vboxnet1

# 在虚拟机中验证网络配置
# ip addr show enp0s3
2: enp0s3: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 08:00:27:12:34:56 brd ff:ff:ff:ff:ff:ff
inet 192.168.57.101/24 brd 192.168.57.255 scope global dynamic enp0s3
valid_lft 86399sec preferred_lft 86399sec
inet6 fe80::a00:27ff:fe12:3456/64 scope link
valid_lft forever preferred_lft forever

# 测试与物理机的连通性
# ping -c 4 192.168.57.1
PING 192.168.57.1 (192.168.57.1) 56(84) bytes of data.
64 bytes from 192.168.57.1: icmp_seq=1 ttl=64 time=0.123 ms
64 bytes from 192.168.57.1: icmp_seq=2 ttl=64 time=0.098 ms
64 bytes from 192.168.57.1: icmp_seq=3 ttl=64 time=0.105 ms
64 bytes from 192.168.57.1: icmp_seq=4 ttl=64 time=0.110 ms
— 192.168.57.1 ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.098/0.109/0.123/0.009 ms

风哥提示：仅主机模式适合隔离环境，如测试环境、开发环境等。虚拟机只能与物理机通信，无法访问外网，外网也无法访问虚拟机，提供了更好的安全性。

5. 内部网络配置

内部网络模式创建一个完全隔离的网络，多个虚拟机之间可以通信，但无法访问外网，物理机也无法访问虚拟机。 更多视频教程www.fgedu.net.cn

# 配置内部网络
# VBoxManage modifyvm “RHEL10-Learning” –nic1 intnet
# VBoxManage modifyvm “RHEL10-Learning” –intnet1 “internal_network”

# 为第二个虚拟机配置相同的内部网络
# VBoxManage modifyvm “RHEL10-Test” –nic1 intnet
# VBoxManage modifyvm “RHEL10-Test” –intnet1 “internal_network”

# 在第一个虚拟机中配置网络
# sudo nmcli connection modify “System eth0” ipv4.addresses 10.0.0.1/24
# sudo nmcli connection modify “System eth0” ipv4.method manual
# sudo nmcli connection up “System eth0”

# 在第二个虚拟机中配置网络
# sudo nmcli connection modify “System eth0” ipv4.addresses 10.0.0.2/24
# sudo nmcli connection modify “System eth0” ipv4.method manual
# sudo nmcli connection up “System eth0”

# 测试虚拟机之间的连通性
# 在第一个虚拟机中：
# ping -c 4 10.0.0.2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.123 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.098 ms
64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.105 ms
64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.110 ms
— 10.0.0.2 ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.098/0.109/0.123/0.009 ms

生产环境建议：内部网络模式适合创建隔离的测试环境，多个虚拟机之间可以通信，但无法访问外网。可以通过配置NAT和路由，使内部网络中的虚拟机通过某个虚拟机访问外网。

6. 端口转发配置

端口转发允许从外部访问虚拟机中的服务，即使虚拟机使用NAT模式。端口转发是NAT模式的重要功能。

# 配置端口转发规则
# 转发SSH端口
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “ssh,tcp,,2222,,22”

# 转发HTTP端口
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “http,tcp,,8080,,80”

# 转发HTTPS端口
# VBoxManage modifyvm “RHEL10-Learning” –natpf1 “https,tcp,,8443,,443”

# 查看端口转发规则
# VBoxManage showvminfo “RHEL10-Learning” | grep -i natpf
NIC 1 Rule(0): name = ssh, protocol = tcp, host ip = , host port = 2222, guest ip = , guest port = 22
NIC 1 Rule(1): name = http, protocol = tcp, host ip = , host port = 8080, guest ip = , guest port = 80
NIC 1 Rule(2): name = https, protocol = tcp, host ip = , host port = 8443, guest ip = , guest port = 443

# 测试端口转发
# 测试SSH连接
# ssh -p 2222 user@localhost
The authenticity of host ‘[localhost]:2222 ([127.0.0.1]:2222)’ can’t be established.
ECDSA key fingerprint is SHA256:1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF1234567890ABCDEF.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added ‘[localhost]:2222’ (ECDSA) to the list of known hosts.
user@localhost’s password:
Last login: Wed Apr 2 10:00:00 2026 from 10.0.2.2
[user@rhel10-learning ~]$

# 测试HTTP连接
# curl http://localhost:8080

Welcome to RHEL 10

This is a test page.

风哥提示：端口转发是NAT模式的重要功能，允许从外部访问虚拟机中的服务。建议为不同的服务使用不同的端口，避免端口冲突。对于生产环境，建议使用桥接模式而不是NAT模式。

7. 网络故障排查

虚拟机网络配置可能出现各种问题，需要掌握基本的故障排查方法。

# 问题1：虚拟机无法获取IP地址
# 排查步骤：
# 1. 检查虚拟机网络模式配置
# VBoxManage showvminfo “RHEL10-Learning” | grep -i nic
NIC 1: MAC: 080027123456, Attachment: NAT, Cable connected: on

# 2. 检查网络连接状态
# nmcli device status
DEVICE TYPE STATE CONNECTION
enp0s3 ethernet disconnected —
lo loopback unmanaged —

# 3. 重启网络接口
# sudo nmcli connection up “System eth0”
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)

# 问题2：虚拟机无法访问外网
# 排查步骤：
# 1. 检查网关配置
# ip route show
default via 10.0.2.2 dev enp0s3 proto dhcp metric 100
10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100

# 2. 检查DNS配置
# cat /etc/resolv.conf
# Generated by NetworkManager
search localdomain
nameserver 10.0.2.3

# 3. 测试DNS解析
# nslookup www.google.com
Server: 10.0.2.3
Address: 10.0.2.3#53

Non-authoritative answer:
Name: www.google.com
Address: 142.250.185.36

生产环境建议：网络故障排查应该从底层到高层逐步进行，先检查物理连接，再检查网络配置，最后检查应用层配置。使用ping、traceroute、telnet等工具可以帮助定位问题。

8. 网络性能优化

通过合理的网络配置和优化，可以提高虚拟机的网络性能，满足不同应用场景的需求。

# 1. 网络适配器类型优化
# 使用VirtIO网络适配器（性能最佳）
# VBoxManage modifyvm “RHEL10-Learning” –nictype1 virtio

# 使用Intel PRO/1000 MT Server适配器（兼容性好）
# VBoxManage modifyvm “RHEL10-Learning” –nictype1 82543GC

# 2. 网络带宽限制
# 设置网络带宽限制（单位：Kbps）
# VBoxManage modifyvm “RHEL10-Learning” –nicspeed1 100000

# 3. 网络MTU优化
# 设置MTU大小（默认1500）
# 在虚拟机中执行：
# sudo ip link set dev enp0s3 mtu 9000

# 验证MTU设置
# ip link show enp0s3
2: enp0s3: mtu 9000 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 08:00:27:12:34:56 brd ff:ff:ff:ff:ff:ff

# 4. 网络性能测试
# 使用iperf3测试网络性能
# 在虚拟机中启动iperf3服务器：
# iperf3 -s
———————————————————–
Server listening on 5201 (default)
———————————————————–

# 在主机上测试网络性能：
# iperf3 -c 10.0.2.15
Connecting to host 10.0.2.15, port 5201
[ 5] local 10.0.2.2 port 12345 connected to 10.0.2.15 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 1.23 GBytes 10.6 Gbits/sec 0 1.08 MBytes
[ 5] 1.00-2.00 sec 1.23 GBytes 10.6 Gbits/sec 0 1.08 MBytes
[ 5] 2.00-3.00 sec 1.23 GBytes 10.6 Gbits/sec 0 1.08 MBytes
[ 5] 3.00-4.00 sec 1.23 GBytes 10.6 Gbits/sec 0 1.08 MBytes
[ 5] 4.00-5.00 sec 1.23 GBytes 10.6 Gbits/sec 0 1.08 MBytes
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 12.3 GBytes 10.6 Gbits/sec 0 sender
[ 5] 0.00-10.00 sec 12.3 GBytes 10.6 Gbits/sec receiver

iperf Done.

风哥提示：网络性能优化应该根据实际应用场景进行调整，不同的应用对网络性能的要求不同。建议在测试环境中验证优化效果，然后再应用到生产环境。

9. 多网卡配置

虚拟机可以配置多个网络适配器，实现更复杂的网络拓扑和隔离策略。

# 配置多个网络适配器
# 第一个网络适配器：NAT模式（访问外网）
# VBoxManage modifyvm “RHEL10-Learning” –nic1 nat

# 第二个网络适配器：桥接模式（访问内网）
# VBoxManage modifyvm “RHEL10-Learning” –nic2 bridged
# VBoxManage modifyvm “RHEL10-Learning” –bridgeadapter2 enp0s3

# 第三个网络适配器：仅主机模式（管理网络）
# VBoxManage modifyvm “RHEL10-Learning” –nic3 hostonly
# VBoxManage modifyvm “RHEL10-Learning” –hostonlyadapter3 vboxnet0

# 第四个网络适配器：内部网络（测试网络）
# VBoxManage modifyvm “RHEL10-Learning” –nic4 intnet
# VBoxManage modifyvm “RHEL10-Learning” –intnet4 “test_network”

# 查看多网卡配置
# VBoxManage showvminfo “RHEL10-Learning” | grep -i nic
NIC 1: MAC: 080027123456, Attachment: NAT, Cable connected: on
NIC 2: MAC: 080027123457, Attachment: Bridged Interface ‘enp0s3’, Cable connected: on
NIC 3: MAC: 080027123458, Attachment: Host-only Interface ‘vboxnet0’, Cable connected: on
NIC 4: MAC: 080027123459, Attachment: Internal Network ‘test_network’, Cable connected: on
NIC 5: disabled
NIC 6: disabled
NIC 7: disabled
NIC 8: disabled

# 在虚拟机中配置多个网络接口
# 查看网络接口
# ip addr show
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: enp0s3: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 08:00:27:12:34:56 brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3
valid_lft 86399sec preferred_lft 86399sec
3: enp0s8: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 08:00:27:12:34:57 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.101/24 brd 192.168.1.255 scope global dynamic enp0s8
valid_lft 86399sec preferred_lft 86399sec
4: enp0s9: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 08:00:27:12:34:58 brd ff:ff:ff:ff:ff:ff
inet 192.168.56.101/24 brd 192.168.56.255 scope global dynamic enp0s9
valid_lft 86399sec preferred_lft 86399sec
5: enp0s10: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 08:00:27:12:34:59 brd ff:ff:ff:ff:ff:ff
inet 10.0.0.1/24 brd 10.0.0.255 scope global enp0s10
valid_lft forever preferred_lft forever

生产环境建议：多网卡配置可以实现网络隔离和负载均衡，提高系统的安全性和性能。建议为不同的网络配置不同的路由策略，确保网络流量正确转发。

10. 生产环境最佳实践

在生产环境中使用虚拟机网络时，需要遵循最佳实践，确保网络的安全性、稳定性和可管理性。

# 1. 网络安全配置
# 启用防火墙
# sudo systemctl start firewalld
# sudo systemctl enable firewalld

# 配置防火墙规则
# sudo firewall-cmd –permanent –add-service=ssh
# sudo firewall-cmd –permanent –add-service=http
# sudo firewall-cmd –permanent –add-service=https
# sudo firewall-cmd –permanent –add-port=3306/tcp
# sudo firewall-cmd –reload

# 2. 网络监控配置
# 安装网络监控工具
# sudo dnf install -y net-snmp net-snmp-utils

# 配置SNMP
# sudo vi /etc/snmp/snmpd.conf
# 添加以下内容：
# rocommunity public
# syslocation “Data Center”
# syscontact admin@fgedu.net.cn

# 启动SNMP服务
# sudo systemctl start snmpd
# sudo systemctl enable snmpd

# 3. 网络备份配置
# 备份网络配置
# sudo nmcli connection show > /backup/network_config.txt
# sudo ip addr show > /backup/ip_addr.txt
# sudo ip route show > /backup/ip_route.txt

# 4. 网络文档记录
# 创建网络配置文档
# cat > /backup/network_config.md << 'EOF' # 虚拟机网络配置文档 ## 虚拟机信息 - 虚拟机名称：RHEL10-Learning - 虚拟机UUID：12345678-1234-1234-1234-123456789012 ## 网络适配器配置 ### NIC 1 (NAT) - MAC地址：08:00:27:12:34:56 - 网络模式：NAT - IP地址：10.0.2.15/24 - 网关：10.0.2.2 - DNS：10.0.2.3 ### NIC 2 (Bridged) - MAC地址：08:00:27:12:34:57 - 网络模式：Bridged - 桥接接口：enp0s3 - IP地址：192.168.1.101/24 - 网关：192.168.1.1 - DNS：8.8.8.8, 8.8.4.4 ### NIC 3 (Host-only) - MAC地址：08:00:27:12:34:58 - 网络模式：Host-only - 仅主机网络：vboxnet0 - IP地址：192.168.56.101/24 ### NIC 4 (Internal) - MAC地址：08:00:27:12:34:59 - 网络模式：Internal - 内部网络：test_network - IP地址：10.0.0.1/24 ## 端口转发规则 - SSH：主机2222端口 -> 虚拟机22端口
– HTTP：主机8080端口 -> 虚拟机80端口
– HTTPS：主机8443端口 -> 虚拟机443端口

## 防火墙规则
– 允许SSH服务
– 允许HTTP服务
– 允许HTTPS服务
– 允许MySQL端口（3306）

## 监控配置
– SNMP服务：启用
– SNMP社区字符串：public
– SNMP位置：Data Center
– SNMP联系人：admin@fgedu.net.cn
EOF

# 5. 网络维护脚本
# 创建网络维护脚本
# cat > /fgedu/shell/network_maintenance.sh << 'EOF' #!/bin/bash # 网络维护脚本 # from:www.itpux.com.qq113257174.wx:itpux-com echo "=== Network Maintenance ===" echo "Date: $(date)" echo "" # 检查网络接口状态 echo "1. Network Interface Status:" nmcli device status echo "" # 检查网络连接状态 echo "2. Network Connection Status:" nmcli connection show echo "" # 检查IP地址配置 echo "3. IP Address Configuration:" ip addr show echo "" # 检查路由配置 echo "4. Routing Configuration:" ip route show echo "" # 检查DNS配置 echo "5. DNS Configuration:" cat /etc/resolv.conf echo "" # 检查网络连通性 echo "6. Network Connectivity Test:" ping -c 4 8.8.8.8 echo "" # 检查防火墙状态 echo "7. Firewall Status:" sudo systemctl status firewalld echo "" # 检查SNMP状态 echo "8. SNMP Status:" sudo systemctl status snmpd echo "" echo "=== Maintenance Complete ===" EOF # 添加执行权限 # chmod +x /fgedu/shell/network_maintenance.sh # 定期执行维护 # echo "0 6 * * * /fgedu/shell/network_maintenance.sh >> /var/log/network_maintenance.log 2>&1″ >> /etc/crontab

风哥提示：在生产环境中，建议定期备份网络配置，并记录所有网络更改。网络监控和维护脚本可以帮助及时发现和解决网络问题，确保系统的稳定性和可用性。

本文由风哥教程整理发布,仅用于学习测试使用,转载注明出处:http://www.fgedu.net.cn/10327.html

相关推荐

联系我们

在线咨询：点击这里给我发消息

微信号：itpux-com

工作日：9:30-18:30，节假日休息