我在 Slackware 15 上配置了 NIS 服务器，客户端是 Unixware 7
客户端可以看到服务器
ypwhich -m passwd
slackware1.mydomain
地图没问题
ypcat passwd.byname
milandra:***:1002:1002::/home/milandra:/bin/bash
身份证作品
id -u milandra 1002
id -g milandra 1002
但..
id milandra
或者
id -G milandra
卡住并等待
这是 nsswitch.conf
passwd: files nis
shadow: files nis
group: files nis
hosts: files dns nis
networks: files nis
services: files nis
protocols: files nis
rpc: files nis
ethers: files nis
netmasks: files nis
netgroup: files nis
bootparams: files nis
automount: files nis
aliases: files nis
可能是什么问题？
使用 tcpdump 显示 ypserv 使用的端口中 nis 服务器上的连续连接。
在 ypserv 上启用调试会返回很多类似这样的行
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
ypproc_first_2 from 192.168.201.2 port 34775
domainname = "mydomain.domain"
mapname = "group.byname"
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
connect from 192.168.201.2 port 34775 to procedure ypproc_first (mydomain.domain,group.byname;1)
ypdb_open("mydomain.domain", "group.byname")
Found: mydomain.domain/group.byname (0)
ypdb_close() called
-> Key = "milandra", Value = "milandra:!:1002:"
如果我在服务器上将 /etc/group.nis 设为空，则 id 可以工作，但会出现此错误
id milandra
uid=1002(milandra) gid=1002
UX:id: WARNING: groupid not found in group database