执行 ping 操作时,本地主机响应非常慢

执行 ping 操作时,本地主机响应非常慢

我的 Gentoo 机器上的网络工作正常。建立一个连接,一切正常,速度正常。但唤醒速度较慢;启动连接需要时间。即使 ping localhost 也需要很长时间(大约 5 秒)。

有什么想法可以让它变得更快吗?

一些命令的输出:

ifconfig 
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 10.107.105.13  netmask 255.255.240.0  broadcast 10.107.111.255
    inet6 fe80::e269:95ff:fe24:8d3a  prefixlen 64  scopeid 0x20<link>
    ether e0:69:95:24:8d:3a  txqueuelen 1000  (Ethernet)
    RX packets 1071380  bytes 978317595 (932.9 MiB)
    RX errors 0  dropped 1979  overruns 0  frame 0
    TX packets 310432  bytes 30846997 (29.4 MiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
    device interrupt 20  memory 0xfe400000-fe420000  

ping -c 5 localhost
PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from Calvin (127.0.0.1): icmp_seq=1 ttl=64 time=0.017 ms
64 bytes from Calvin (127.0.0.1): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from Calvin (127.0.0.1): icmp_seq=3 ttl=64 time=0.031 ms
64 bytes from Calvin (127.0.0.1): icmp_seq=4 ttl=64 time=0.030 ms
64 bytes from Calvin (127.0.0.1): icmp_seq=5 ttl=64 time=0.033 ms

--- localhost ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3999ms
rtt min/avg/max/mdev = 0.017/0.028/0.033/0.005 ms

ping -c 5 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.018 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.021 ms
64 bytes from 127.0.0.1: icmp_seq=3 ttl=64 time=0.034 ms
64 bytes from 127.0.0.1: icmp_seq=4 ttl=64 time=0.031 ms
64 bytes from 127.0.0.1: icmp_seq=5 ttl=64 time=0.033 ms

--- 127.0.0.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 3998ms
rtt min/avg/max/mdev = 0.018/0.027/0.034/0.008 ms

答案1

由于localhost127.0.0.1给出了不同的响应时间,这是一个名称解析问题。检查/etc/resolv.conf以确保它包含您的名称服务器的正确地址。如果您不确定正确的地址,您可以尝试

名称服务器 8.8.8.8
名称服务器 8.8.4.4

有点奇怪,localhost不能从 中的条目解析/etc/hosts,因此您可能需要检查它是否包含看起来像这样的行

127.0.0.1 本地主机

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