NFS启动时报错Linux NFS:could not open connection for tcp6
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1.1 启动时出现的错误
[root@znix ~]#/etc/init.d/nfs start
Shutting down NFS daemon: [ OK ]
Shutting down NFS mountd: [ OK ]
Shutting down NFS services: [ OK ]
Shutting down RPC idmapd: [ OK ]
Starting NFS services: [ OK ]
Starting NFS mountd: rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
rpc.mountd: svc_tli_create: could not open connection for udp6
rpc.mountd: svc_tli_create: could not open connection for tcp6
[ OK ]
Starting NFS daemon: rpc.nfsd: address family inet6 not supported by protocol TCP
[ OK ]
Starting RPC idmapd: [ OK ]
根据启动提示可以获知，inet6地址族不被支持，原因是当前主机没有加载ipv6的模块，可以重新加载一遍ipv6模块解决这个问题。
由于我的系统不需要ipv6的支持，所以还可以通过下面的操作，取消NFS的ipv6调用。
1.2 【解决办法】编辑netconfig配置文件，注释相关TCP/UDP6的信息条目
[root@znix ~]#vim /etc/netconfig
#
# Entries consist of:
#
# <network_id> <semantics> <flags> <protofamily> <protoname> \
# <device> <nametoaddr_libs>
#
# The <device> and <nametoaddr_libs> fields are always empty in this
# implementation.
#
udp tpi_clts v inet udp - -
tcp tpi_cots_ord v inet tcp - -
#udp6 tpi_clts v inet6 udp - -
#tcp6 tpi_cots_ord v inet6 tcp - -
rawip tpi_raw - inet - - -
"/etc/netconfig" 19L, 769C written
1.3 重启服务验证
[root@znix ~]#/etc/init.d/nfs restart
Shutting down NFS daemon: [ OK ]
Shutting down NFS mountd: [ OK ]
Shutting down NFS services: [ OK ]
Shutting down RPC idmapd: [ OK ]
Starting NFS services: [ OK ]
Starting NFS mountd: [ OK ]
Starting NFS daemon: [ OK ]
Starting RPC idmapd: [ OK ]
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