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udev规则中ATTRS和ATTR有什么区别？不是两个属性吗？为什么要区分？

我很难在 Fedora 26上设置nfs+ kerberos。

我遵循了本教程：

RHEL7：使用 Kerberos 控制对 NFS 网络共享的访问 | 证书仓库

目前，纯 NFS 工作正常，kinit单独工作正常，但我在尝试挂​​载时仍然没有获得许可，并且在/var/log/krb5kdc.log.

krb5kdc[12560](info): AS_REQ (8 etypes {18 17 16 23 25 26 20 19}) 192.168.0.13: NEEDED_PREAUTH: nfs/rbenedettin.local@LOCAL for krbtgt/LOCAL@LOCAL, Additional pre-authentication required                        
krb5kdc[12560](info): preauth (encrypted_timestamp) verify failure: Preauthentication failed                                                                                                                      
krb5kdc[12560](info): AS_REQ (8 etypes {18 17 16 23 25 26 20 19}) 192.168.0.13: PREAUTH_FAILED: nfs/rbenedettin.local@LOCAL for krbtgt/LOCAL@LOCAL, Preauthentication failed

我想使用zero-config，我试过不使用它（编辑/etc/hosts），但问题仍然存在，其他一些教程指向authconfig-gui或authconfig-tui但 Fedora 26 不再有它。网络上几乎没有关于最近的 …

Systemd-analyze 给我不同的结果，具体取决于我执行它的次数，我正在做Systemd-analyze verify mnt-HDDs.mount和得到：

local-fs.target: Found ordering cycle on HDDs-unlock.service/start
local-fs.target: Found dependency on sysinit.target/start
local-fs.target: Found dependency on systemd-update-done.service/start
local-fs.target: Found dependency on local-fs.target/start
local-fs.target: Job systemd-update-done.service/start deleted to break ordering cycle starting with local-fs.target/start
local-fs.target: Found ordering cycle on HDDs-unlock.service/start
local-fs.target: Found dependency on sysinit.target/start
local-fs.target: Found dependency on systemd-journal-catalog-update.service/start
local-fs.target: Found dependency on local-fs.target/start
local-fs.target: Job systemd-journal-catalog-update.service/start deleted to break ordering cycle starting with local-fs.target/start
local-fs.target: Found ordering cycle on HDDs-unlock.service/start
local-fs.target: Found dependency on …