[Samba] {Device Timeout} The I/O operation specified in %hs was not completed before the timeout period expired

[Rowland Penny]

On Wed, 3 Jan 2024 17:09:26 -0300
Elias Pereira <empbilly at gmail.com> wrote:

> Sorry, but I didn't realize that in the command I didn't specify to
> check for udp.
> 
> root at dc2:~# nmap --min-parallelism 100 -p
> 53,88,135,139,389,445,464,636,3268,3269,49152-65535 200.132.218.160
> *(dc3)* Starting Nmap 7.93 ( https://nmap.org ) at 2024-01-03 17:02
> -03 Nmap scan report for DC3 (200.132.218.160)
> Host is up (0.00015s latency).
> Not shown: 16381 closed tcp ports (reset)
> PORT      STATE SERVICE
> 53/tcp    open  domain
> 88/tcp    open  kerberos-sec
> 135/tcp   open  msrpc
> 139/tcp   open  netbios-ssn
> 389/tcp   open  ldap
> 445/tcp   open  microsoft-ds
> 464/tcp   open  kpasswd5
> 636/tcp   open  ldapssl
> 3268/tcp  open  globalcatLDAP
> 3269/tcp  open  globalcatLDAPssl
> 49152/tcp open  unknown
> 49153/tcp open  unknown
> 49154/tcp open  unknown
> MAC Address: BE:79:98:04:F5:84 (Unknown)
> Nmap done: 1 IP address (1 host up) scanned in 0.59 seconds
> 
> root at dc2:~# nmap --min-parallelism 100 -p 53,88,123,137,138,389,464
> -sU 200.132.218.160 *(dc3)*
> Starting Nmap 7.93 ( https://nmap.org ) at 2024-01-03 17:03 -03
> Nmap scan report for DC3 (200.132.218.160)
> Host is up (0.0011s latency).
> 
> PORT    STATE         SERVICE
> 53/udp  open          domain
> 88/udp  open|filtered kerberos-sec
> 123/udp open          ntp
> 137/udp open          netbios-ns
> 138/udp open|filtered netbios-dgm
> 389/udp open          ldap
> 464/udp open|filtered kpasswd5
> MAC Address: BE:79:98:04:F5:84 (Unknown)
> Nmap done: 1 IP address (1 host up) scanned in 1.38 seconds
> 
> Is a firewall running and if so, are all the
> > required ports open ?
> 
> Okay. All the necessary ports are open.
> 
> Is dns configured correctly ?
> 
> root at dc2:~# cat /etc/resolv.conf
> search campus.sertao.ifrs.edu.br
> nameserver 200.132.218.163 (*own IP*)
> 
> root at dc3:~# cat /etc/resolv.conf
> search campus.sertao.ifrs.edu.br
> nameserver 200.132.218.160 (*own IP*)
> 
> Based on this, what could be causing the "timeout" in the replica
> command?
> 

Everything looks okay, so I am not sure what is going on here, kerberos
??? 
What is in /etc/krb5.conf ?

Rowland