我在 Ubuntu 20.04 LTS Server 上运行 Samba 版本 4.11.6。Ubuntu 和 Windows 10 客户端能够直接按名称访问共享，但尝试浏览服务器的共享失败，因为客户端对 IPC$ 共享的请求由于缺乏加密或请求签名而被拒绝，即使服务器配置为不需要加密或签名：
smb.conf：
[global]
nt pipe support = no
netbios name = fileserver
workgroup = WORKGROUP
server string = %h
dns proxy = yes
name resolve order = lmhosts host wins bcast
interfaces = enp1s0 lo
bind interfaces only = yes
log level = 9
max log size = 1000
panic action = /usr/share/samba/panic-action %d
security = user
map to guest = bad user
guest account = nobody
force group = +mydocs
encrypt passwords = true
passdb backend = tdbsam
invalid users = root
domain logons = no
load printers = no
socket options = TCP_NODELAY
client max protocol = default
local master = yes
preferred master = yes
os level = 65
guest ok = yes
client ipc signing = off
smb encrypt = off
[my_documents]
comment = My Documents
path = /export/share/my_documents
browseable = yes
writable = yes
create mask = 0775
guest ok = yes
日志.smbd：
[2020/08/02 16:17:36.842128, 4] ../../source3/smbd/sec_ctx.c:319(set_sec_ctx_internal)
setting sec ctx (0, 0) - sec_ctx_stack_ndx = 0
[2020/08/02 16:17:36.842185, 5] ../../libcli/security/security_token.c:53(security_token_debug)
Security token: (NULL)
[2020/08/02 16:17:36.842221, 5] ../../source3/auth/token_util.c:873(debug_unix_user_token)
UNIX token of user 0
Primary group is 0 and contains 0 supplementary groups
[2020/08/02 16:17:36.842282, 5] ../../source3/smbd/uid.c:503(smbd_change_to_root_user)
change_to_root_user: now uid=(0,0) gid=(0,0)
[2020/08/02 16:17:36.842361, 1] ../../source3/smbd/smb2_tcon.c:229(smbd_smb2_tree_connect)
smbd_smb2_tree_connect: reject request to share [IPC$] as 'FILESERVER\james' without encryption or signing. Disconnecting.
[2020/08/02 16:17:36.842405, 3] ../../source3/smbd/smb2_server.c:3254(smbd_smb2_request_error_ex)
smbd_smb2_request_error_ex: smbd_smb2_request_error_ex: idx[1] status[NT_STATUS_ACCESS_DENIED] || at ../../source3/smbd/smb2_tcon.c:142
我还尝试在路径 /tmp 上明确定义一个 IPC$ 共享（尽管这不是必需的），并禁用加密和签名并启用访客访问，没有区别。
有任何想法吗？
或者，我可以使用一些 Windows-fu 来使其签署和/或加密 IPC$ 请求吗？