我有一台运行 CentOS 客户机的 ubuntu 主机，它托管了一个网络服务器。
Ubuntu 主机/本地机器是 172.29.15.1（静态） - 主机名是 sysengtest01
CentOS 来宾是 172.29.15.7（静态）- 我想使用的主机名是 ixchariot-server 来解析这个地址（例如http://ixchariot-server/）
--------------- --------------- ------------------------
- Cent OS - - DHCP/Host - - Clients -
- 172.29.15.7 - -- vmnet0 (bridge) ---- - 172.29.15.1 - --- eno4 -- switch --- 172.29.14.1 - 254 -
- ixchariot-server DNS 8.8.8.8
--------------- --------------- ------------------------
我有一个 DHCP 服务器，它正在处理连接的各种客户端，如果有必要，下面是 DHCP 配置：
subnet 172.29.14.0 netmask 255.255.254.0 {
authoritative;
max-lease-time 3600;
option subnet-mask 255.255.254.0;
option broadcast-address 172.29.15.254;
option routers 172.29.15.0;
option domain-name-servers 8.8.8.8;
option domain-name "example.org";
pool {
range 172.29.14.1 172.29.14.254; # address range for dynamic
# static reserve for 172.29.15.1 - 172.29.15.254
}
host Switch { # static ip for switch
hardware ethernet 8c:3b:ad:35:61:0a;
fixed-address 172.29.15.2;
}
host IxiaServer { # static ip for Ixia Server
hardware ethernet 00:0C:29:29:C4:A5;
fixed-address 172.29.15.7;
}
host eno4 { # static ip for eno4 interface
hardware ethernet ac:1f:6b:60:56:61;
fixed-address 172.29.15.1;
}
host eno3 { # static ip for eno3 interface
hardware ethernet ac:1f:6b:60:56:60;
fixed-address 172.29.15.5;
}
}
我想做的是客户端将重定向流量从主机名 ixchariot-server 附加到 172.29.15.7（实际的网络服务器）。我认为执行此操作的最佳机制是设置本地 DNS 服务器，但我无法正确配置 bind9 我相信...
下面是我的named.conf.local：
zone "example.org" {
type master;
file "/etc/bind/zones/db.example.org";
// allow-transfer { localhost };
};
和我的named.conf.options：
options {
directory "/var/cache/bind";
// recursion yes;
// allow-recursion { trusted; };
// listen-on { localhost; };
// allow-transfer { none; };
forwarders {
8.8.8.8;
// 8.8.4.4;
};
//========================================================================
// If BIND logs error messages about the root key being expired,
// you will need to update your keys. See https://www.isc.org/bind-keys
//========================================================================
dnssec-validation auto;
auth-nxdomain no; # conform to RFC1035
listen-on-v6 { any; };
};
最后，这是我在 /etc/bind/zones 下的 db.example.org 文件：
;
; BIND data file for local loopback interface
;
$TTL 604800
@ IN SOA sysengtest01.example.org. syseng.localhost. (
2 ; Serial
604800 ; Refresh
86400 ; Retry
2419200 ; Expire
604800 ) ; Negative Cache TTL
;
@ IN NS sysengtest01.example.org.
@ IN A 127.0.0.1
@ IN AAAA ::1
; record addresses
ixchariot-server IN A 172.29.15.7
但是，ixchariot-server 无法在我的客户端上解析，因此 DNS 似乎无法正确侦听请求、提供地址或其他类似的东西。
似乎服务正在运行，只是不确定这个错误是否是原因？
syseng@sysengTest01:/etc/bind/zones$ service bind9 status
● bind9.service - BIND Domain Name Server
Loaded: loaded (/lib/systemd/system/bind9.service; enabled; vendor preset: enabled)
Drop-In: /run/systemd/generator/bind9.service.d
└─50-insserv.conf-$named.conf
Active: active (running) since Mon 2018-04-09 10:40:44 PDT; 2min 5s ago
Docs: man:named(8)
Process: 18734 ExecStop=/usr/sbin/rndc stop (code=exited, status=0/SUCCESS)
Main PID: 18740 (named)
CGroup: /system.slice/bind9.service
└─18740 /usr/sbin/named -f -4 -u bind
Apr 09 10:40:44 sysengTest01 named[18740]: managed-keys-zone: journal file is out of date: removing journal file
Apr 09 10:40:44 sysengTest01 named[18740]: managed-keys-zone: loaded serial 18
Apr 09 10:40:44 sysengTest01 named[18740]: zone 0.in-addr.arpa/IN: loaded serial 1
Apr 09 10:40:44 sysengTest01 named[18740]: zone localhost/IN: loaded serial 2
**Apr 09 10:40:44 sysengTest01 named[18740]: zone example.org/IN: NS 'sysengtest01.example.org' has no address records (A or AAAA)
Apr 09 10:40:44 sysengTest01 named[18740]: zone example.org/IN: not loaded due to errors.**
Apr 09 10:40:44 sysengTest01 named[18740]: zone 127.in-addr.arpa/IN: loaded serial 1
Apr 09 10:40:44 sysengTest01 named[18740]: zone 255.in-addr.arpa/IN: loaded serial 1
Apr 09 10:40:44 sysengTest01 named[18740]: all zones loaded
Apr 09 10:40:44 sysengTest01 named[18740]: running