涼果笔记

nslookup 服务器 Unknown

创建于: 3分钟阅读本页源码

问题：

服务器: Unknown
Address: 2409:8a1e:6e71:5eb0::1

解决效果：

$ nslookup -d2 pve.lan
------------
SendRequest(), len 90
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  query, want recursion
        questions = 1,  answers = 0,  authority records = 0,  additional = 0

    QUESTIONS:
        1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.b.e.5.1.7.e.6.e.1.a.8.9.0.4.2.ip6.arpa, type = PTR, class = IN

------------
------------
Got answer (122 bytes):
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.b.e.5.1.7.e.6.e.1.a.8.9.0.4.2.ip6.arpa, type = PTR, class = IN
    ANSWERS:
    ->  1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.b.e.5.1.7.e.6.e.1.a.8.9.0.4.2.ip6.arpa
        type = PTR, class = IN, dlen = 20
        name = RT-AX86U-CE58-IPv6
        ttl = 0 (0 secs)

------------
服务器:  RT-AX86U-CE58-IPv6
Address:  2409:8a1e:6e71:5eb0::1

History

  1. PTR record on dnsmasq.d
  2. /etc/hosts
  3. interface-name on dnsmasq.conf.add [ working ]

PTR record on dnsmasq.d

On Windows

$ ipconfig /all | findstr "DNS"
 
DNS 服务器 . . . . . . . . . . . : 2409:8a1e:6e71:5eb0::1

On Router

$ cat /jffs/configs/dnsmasq.d/ipv6-arp.conf
 
ptr-record=1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.b.e.5.1.7.e.6.e.1.a.8.9.0.4.2.ip6.arpa,RT-AX86U-CE58-IPv6

[Dnsmasq-discuss] No Reverse ipv6 DNS lookups with dnsmasq?

Hosts record on /etc/hosts

echo "2409:8a1e:6e71:5eb0::1 RT-AX86U-CE58-IPv6" >> /etc/hosts

interface-name on dnsmasq.conf.add

cat /jffs/configs/dnsmasq.conf.add
 
# resolve self as IPv6 address when client doing DNS request  
interface-name=RT-AX86U-CE58-IPv6,br0/6

这里的 /6 代表 IPv6
Router IPv6 hosts entries | SNBForums

因为重启会丢失 /jffs/configs 目录的内容，所以写在初始化脚本里

# file: /jffs/.koolshare/enihsyou/N200enihsyou.sh
 
#!/bin/sh
# please link me, I will run when nat-start event occur.
# ln -s /jffs/.koolshare/enihsyou/N200enihsyou.sh /jffs/.koolshare/init.d/
 
alias logme='logger "[enihsyou]:"'
 
# make router responed to IPv6 ARP query
if [ ! -e /jffs/configs/dnsmasq.d/lan.conf ]; then
  logme "create /jffs/configs/dnsmasq.conf.add"
  ipv6_hostname="$(nvram get lan_hostname)" # RT-AX86U-CE58
  ipv6_hostname="$ipv6_hostname-IPv6"       # RT-AX86U-CE58-IPv6
  echo "# file generated by $0" >> /jffs/configs/dnsmasq.d/lan.conf
  echo "# resolve self as IPv6 address when client doing DNS request" >> /jffs/configs/dnsmasq.d/lan.conf
  echo "interface-name=$ipv6_hostname,br0/6" >> /jffs/configs/dnsmasq.d/lan.conf
  service restart_dnsmasq
fi
 
# link avahi-daemon.postconf
if [ ! -e /jffs/scripts/avahi-daemon.postconf ]; then
  if [ -f /jffs/.koolshare/enihsyou/avahi-daemon.postconf ]; then
    logme "link /jffs/scripts/avahi-daemon.postconf"
    ln -sf /jffs/.koolshare/enihsyou/avahi-daemon.postconf /jffs/scripts/avahi-daemon.postconf
  else
    logme "avahi-daemon.postconf not found, please check"
  fi
fi
 
# append homebridge-miio iptables rules
if ! iptables -t nat -C POSTROUTING -o br0 -p udp --dport 54321 -s 192.168.1.0/24 -j MASQUERADE > /dev/null 2>&1; then
  logme "append homebridge-miio iptables rules"
  iptables -t nat -A POSTROUTING -o br0 -p udp --dport 54321 -s 192.168.1.0/24 -j MASQUERADE
fi

On Merlin Clash

dns:
  enable: true
  ipv6: true
  listen: :23453
  default-nameserver:
    - 223.5.5.5
    - 119.29.29.29
  enhanced-mode: redir-host 
  nameserver:
    - 223.5.5.5
    - 1.2.4.8
  fallback:
    - 8.8.8.8

Custom config files · RMerl/asuswrt-merlin.ng Wiki

nslookup x.com
172.66.0.227
162.159.140.229

$ netsh interface tcp show global  
查询活动状态...  
  
TCP 全局参数  
----------------------------------------------  
接收方缩放状态 : enabled  
接收窗口自动调节级别 : normal  
加载项拥塞控制提供程序 : default  
ECN 功能 : disabled  
RFC 1323 时间戳 : allowed  
初始 RTO : 1000  
接收段合并状态 : enabled  
非 Sack Rtt 复原 : disabled  
最大 SYN 重新传输次数 : 4  
快速打开 : enabled  
快速打开回退 : enabled  
HyStart : enabled  
比例费率降低 : enabled  
节奏配置文件 : off


netsh interface tcp set global MaxSynRetransmissions=2

[TCP/IP and NBT configuration parameters for Windows XP - Windows Client | Microsoft Learn](https://learn.microsoft.com/en-us/troubleshoot/windows-client/networking/tcpip-and-nbt-configuration-parameters)
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\TcpMaxConnectRetransmissions D_WORD 1
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\TcpMaxDataRetransmissions D_WORD 1

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