addohm提出的问题 -computer

addohm

Asked: 2025-01-27 22:39:45 +0800 CST

静态 IP 导致无法访问外部互联网

这是我的方案：VM > Unraid 服务器 > 路由器 > 互联网

当我允许 DHCP 时，没有任何问题。当我切换到静态时，我可以完全访问本地内联网，但无法访问互联网。以下是一些显示 DHCP ifconfig、ip a、ip route和的图像ip neigh。

DHCP

addohm@cdc:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> 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
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever 
2: ens2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
        link/ether 52:54:00:94:04:62 brd ff:ff:ff:ff:ff:ff
        altname enp0s2
        inet 192.168.1.198/24 metric 100 brd 192.168.1.255 scope global dynamic ens2
           valid_lft 43110sec preferred_lft 43110sec
        inet6 fe80::5054:ff:fe94:462/64 scope link 
           valid_lft forever preferred_lft forever

addohm@cdc:~$ ifconfig
    ens2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
            inet 192.168.1.198  netmask 255.255.255.0  broadcast 192.168.1.255
            inet6 fe80::5054:ff:fe94:462  prefixlen 64  scopeid 0x20<link>
            ether 52:54:00:94:04:62  txqueuelen 1000  (Ethernet)
            RX packets 114  bytes 8804 (8.8 KB)
            RX errors 0  dropped 0  overruns 0  frame 0
            TX packets 20  bytes 1988 (1.9 KB)
            TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 84  bytes 6352 (6.3 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 84  bytes 6352 (6.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

addohm@cdc:~$ ip route
default via 192.168.1.1 dev ens2 proto dhcp src 192.168.1.198 metric 100 
192.168.1.0/24 dev ens2 proto kernel scope link src 192.168.1.198 metric 100 
192.168.1.1 dev ens2 proto dhcp scope link src 192.168.1.198 metric 100

addohm@cdc:~$ ip neigh
192.168.1.1 dev ens2 lladdr 6c:99:61:d9:a6:ea STALE

addohm@cdc:~$ netstat nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG        0 0          0 ens2
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 ens2
192.168.1.1     0.0.0.0         255.255.255.255 UH        0 0          0 ens2

静止的

addohm@cdc:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> 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
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: ens2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:94:04:62 brd ff:ff:ff:ff:ff:ff
    altname enp0s2
    inet 192.168.1.137/24 brd 192.168.1.255 scope global ens2
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:ff:fe94:462/64 scope link 
       valid_lft forever preferred_lft forever

addohm@cdc:~$ ifconfig
ens2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.137  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::5054:ff:fe94:462  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:94:04:62  txqueuelen 1000  (Ethernet)
        RX packets 632  bytes 54651 (54.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 766  bytes 64930 (64.9 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 865  bytes 69275 (69.2 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 865  bytes 69275 (69.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

addohm@cdc:~$ ip route
default via 192.168.1.254 dev ens2 proto static 
192.168.1.0/24 dev ens2 proto kernel scope link src 192.168.1.137

addohm@cdc:~$ ip neigh
192.168.1.136 dev ens2 lladdr 1c:98:ec:0f:c4:30 REACHABLE 
192.168.1.254 dev ens2 INCOMPLETE

addohm@cdc:~$ netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.1.254   0.0.0.0         UG        0 0          0 ens2
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 ens2

这是我的配置（/etc/netplan/50-cloud-init.yaml）：

network:
  version: 2
  ethernets:
    ens2:
      dhcp4: false
      dhcp6: true
      addresses:
      - 192.168.1.137/24
      routes:
      - to: default
        via: 192.168.1.254
      nameservers:
        addresses: [8.8.8.8,8.8.4.4]

我这里漏掉了什么？在我看来，一切似乎都一样，但显然有些东西阻止了外部访问。

以下是对 Google 名称服务器的 ping：

PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 192.168.1.137 icmp_seq=1 Destination Host Unreachable
From 192.168.1.137 icmp_seq=2 Destination Host Unreachable
From 192.168.1.137 icmp_seq=3 Destination Host Unreachable
From 192.168.1.137 icmp_seq=4 Destination Host Unreachable

以下是到 Google 名称服务器的跟踪路由：

traceroute to 8.8.8.8 (8.8.8.8), 64 hops max
  1   192.168.1.137  1407.485ms !H  *  68.629ms !H

addohm

Asked: 2021-12-18 17:16:07 +0800 CST

Ubuntu Server 20.04 中未显示硬件 RAID

我最近将一台旧机器重新用作 NAS。我刚刚添加了 4 个 HDD，打算将它们设置为 RAID 1+0。这是 HP Proliant Microserver Gen8。我在 RAID 控制器中设置了驱动器，但一旦启动，它显示为 4 个单独的驱动器而不是 1 个逻辑驱动器。我在这里想念什么？我确信它应该显示为一个驱动器。

lspci -v

00:1f.2 RAID bus controller: Intel Corporation 6 Series/C200 Series Desktop SATA RAID Controller (rev 05)
        Subsystem: Hewlett Packard Enterprise 6 Series/C200 Series Desktop SATA RAID Controller
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 32, NUMA node 0
        I/O ports at 10c0 [size=8]
        I/O ports at 10c8 [size=4]
        I/O ports at 10d0 [size=8]
        I/O ports at 10d8 [size=4]
        I/O ports at 10e0 [size=32]
        Memory at facd0000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: <access denied>
        Kernel driver in use: ahci
        Kernel modules: ahci

fdisk -l

Disk /dev/sdc: 3.65 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: ST4000VN008-2DR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/sdd: 3.65 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: ST4000VN008-2DR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/sde: 3.65 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: ST4000VN008-2DR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/sdf: 3.65 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: ST4000VN008-2DR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

静态 IP 导致无法访问外部互联网

Ubuntu Server 20.04 中未显示硬件 RAID

如何减少“vmmem”进程的消耗？

从 Microsoft Stream 下载视频

Google Chrome DevTools 无法解析 SourceMap：chrome-extension

Windows 照片查看器因为内存不足而无法运行？

支持结束后如何激活 WindowsXP？

远程桌面间歇性冻结

子网掩码 /32 是什么意思？

鼠标指针在 Windows 中按下的箭头键上移动？

VirtualBox 无法以 VERR_NEM_VM_CREATE_FAILED 启动

应用程序不会出现在 MacBook 的摄像头和麦克风隐私设置中

addohm's questions