[Samba] No Samba NT DOMAIN Name found exitting now...

[Robert Wooden]

Louis,
Upgraded to 4.13 and running "samba-check-db-repl.sh" exits with: "No Samba
NT DOMAIN Name found exitting now...:

Complete output:

> #!/bin/bash -v
>
> ##
> ## Version      : 1.0.8
> ## release d.d. : 24-03-2015
> ## Author       : L. van Belle
> ## E-mail       : louis at van-belle.nl
> ## Copyright    : Free as free can be, copy it, change it if needed.
> ## Sidenote     : if you change things, please inform me
> ## ChangeLog    : first release d.d. 23-03-2015
> ## 24-03-2015   : 1.0.2 few small changes, thanks Rowland for the
> suggestions.
> ## 22-04-2015   : 1.0.3 moved mailx part within check if an e-mail adres
> is used.
> ## 24-04-2015   : 1.0.4 added extra check, so if no is if found, you get
> an error message and not a python error.
> ## 21-11-2016   : 1.0.5 extra filter options. ( samba 4.5.x needs
> adjusting )
> ## ( removed the . in the hostname resolving for the DCS, this was no
> error, but its more clear what people want to see )
> ## 12-02-2018   : 1.0.6 fix the test for presence of "FAILURE" will be
> true even if the actual result is "successful".
> ## 13-02-2018   : 1.0.7 fix filter, variable was not used. optimized code,
> remove ^M.
> ## 30-01-2019   : 1.0.8 change filter defaults to whenChanged,dc,DC,cn,CN
>
> ## Samba database checker. ( samba 4.1-4.8 tested)
> ## This script wil check for error in the samba databases with samba-tool
> ## If needed adjust it to your os needs.
>
> ## !! Warning, samba 4.5.0 - 4.5.1 errors about cn CN ou OU differences.
> ## This is a samba bug : https://bugzilla.samba.org/show_bug.cgi?id=12399
> # you may need to adjust the filter options below. (SAMBA_LDAPCMD_FILTER)
>
> ## NOTICE !! This script does only work with samba DC's
> ## A samba DC + Windows DC wont work and is not tested, if you get that to
> work,
> ## please share the code ;-)
>
> ## Howto use it:
> ## Put it on any samba4 DC and run it.
> ## if you put it in a cron job,
> ## set the mail report adres and put in the password for Administrator
> ## and set the relayhost.
> ## Test it, by remove-ing the email adres at EMAIL_REPORT_ADRES
> ## and you get a console output of the checks.
> ## Thats it, enjoy..
> ## All other settings are optional..
>
> ## Only tested with user "Administrator".. best is not to change this.
> SAMBA_NT_ADMIN_USER="Administrator"
> ## if empty the script wil ask for the pass..
> ## for running this with cron this is a must !
> SAMBA_NT_ADMIN_PASS="mypassword"
>
> ## perform 2 checkes by default for the database replication
> ## keep both set to yes, thats the best.
> SAMBA_CHECKDB_WITH_DRS="yes"
> SAMBA_CHECKDB_WITH_LDAPCMD="yes"
> ## Filter non-synced attributes
> ## Change the filter to avoid mismatching, some items can be ignored.
> ## Some examples. :
> whenChanged,usnChanged,usnCreated,msDS-NcType,serverState
> ## add them with "," seperated.
> SAMBA_LDAPCMD_FILTER="whenChanged,dc,DC,cn,CN"
>
> # TODO, this one is not integrated yet!
> ## Compare single AD partitions on Domain Controller DC1 and DC2:
> ## You can compair also only one for more partitions in stead of the full
> DB.
> ## The options are : domain configuration schema dnsdomain dnsforest
> ## Keep empty for full DB compair, or space separated partition options.
> #SAMBA_LDAPCMD_PARTITIONS=""
>
>
> ## The email adress to report to.
> ## If you put an e-mail adres here the script wil also check for mail
> tools.. etc
> ## Email are only send when errors are found and no console output !
> ## if you want console put, dont put any email address here..
> EMAIL_REPORT_ADDRESS="myemailaddress"
>
>
> ## Normaly only e-mail are send when errors are found, or set yes for
> always email
> EMAIL_REPORT_ALWAYS="no"
>
> ## I use postfix as relay host. ( set to run on localhost only)
> ## Put here your mail relay host
> ## hostname or hostname-fqdn or ip or ip:port are ok.
> ## This is only used when NO sendmail program if found.
> POSTFIX_RELAY_HOST=""
>
> ## postfix wil be automatily setup for your.
> ## If you did already setup any mail server on the server or you are able
> to mail
> ## from this server with "mail" command, then this script does not install
> postfix.
>
> ## cleanup the log in /tmp
> ## can be handy if you want to review manualy.
> SETREMOVELOG="no"
>
> ## So you reached the end for the configure..
> ## Set this one to yes.. and your good to go.
> ####CONFIGURED="no"
> CONFIGURED="yes"
>
>
> #######################################################################
> ## DONT CHANGE BELOW Please, if you make changes, please share them.  #
> #######################################################################
>
> ## hostname in single word, but you dont need to change this
> SETHOSTNAME="$(hostname -s)"
> ## domainname.tld, but if you installed correct, you dont need to change
> this
> SETDNSDOMAIN="$(hostname -d)"
> ## hostname.domainname.tld, but if you installed correct, you dont need to
> change this
> SETFQDN="$(hostname -f)"
>
>
> SETTPUT="$(which tput)"
> if [ -z "${SETTPUT}" ]; then
>     echo "program tput not found, installing it now.. please wait"
>     apt-get update > /dev/null
>     apt-get install -y --no-install-recommends ncurses-bin > /dev/null
> fi
>
> RED="$(${SETTPUT} setaf 1)"
> NORMAL="$(${SETTPUT} sgr0)"
> GREEN="$(${SETTPUT} setaf 2)"
> YELLOW="$(${SETTPUT} setaf 3)"
> UNDERLINE="$(${SETTPUT} smul)"
> WHITE="$(${SETTPUT} setaf 7)"
> BOLD="$(${SETTPUT} bold)"
>
> message() {
>   printf "%40s\n" "${WHITE}${BOLD}$*${NORMAL}"
> }
> good() {
>   printf "%40s\n" "${GREEN}$*${NORMAL}"
> }
> error() {
>   printf "%40s\n" "${RED}$*${NORMAL}"
> }
> warning() {
>   printf "%40s\n" "${YELLOW}$*${NORMAL}"
> }
> warning_underline() {
>   printf "%40s\n" "${YELLOW}${UNDERLINE}$*${NORMAL}"
> }
>
> check_run_as_sudo_root() {
>   if ! [[ $EUID -eq 0 ]]; then
>     error "This script should be run using sudo or by root."
>     exit 1
>   fi
> }
> configured_script() {
>     if [ "${CONFIGURED}" = "no" ]; then
>         error "####################################################"
>         error "You need to configure this script first to run it. "
>         echo " "
>         error "exiting script now... "
>         exit 0
>     fi
> }
>
> configured_script
> check_run_as_sudo_root
>
> if [ $SAMBA_CHECKDB_WITH_DRS = "no" ] && [ ${SAMBA_CHECKDB_WITH_LDAPCMD} =
> "no" ] ; then
>     error "When you set both SAMBA_CHECKBD... to NO.. then there is no
> point of running this script"
>     error "Please set at least 1 of these checks to yes"
>     error "exiting script now... "
>     exit 0
> fi
>
> SET_SAMBATOOL="$(which samba-tool)"
> if [ -z "$SET_SAMBATOOL" ]; then
>     error "No samba-tool tool found, this script wil exit now.. this.. I
> cant fix."
>     exit 0
> fi
>
> SET_TR="$(which tr)"
> if [ -z "$SET_TR" ]; then
>     warning "No tr tool found, running apt-get update and install
> coreutils, please wait.."
>     apt-get update > /dev/null
>     apt-get install -y --no-install-recommends coreutils > /dev/null
>     sleep 0.5
>     SET_TR="$(which tr)"
> fi
>
> ## get DC info
> DCS="$(host -t SRV _kerberos._udp."${SETDNSDOMAIN}" | awk '{print $NF}'|
> sed 's/.$//')"
> if [ -z "${DCS}" ]; then
>     error "No Samba DCS found, host -t SRV _kerberos.udp.${SETDNSDOMAIN}
> returned nothing"
>     error "exitting now..."
>     exit 0
> fi
>
> #SAMBA_DC_FSMO=(${SET_SAMBATOOL} fsmo show | cut -d',' -f2 | head -n1 |
> cut -c4-100 | ${SET_TR} '[:upper:]' '[:lower:]')
> SAMBA_DC_FSMO=$(echo $(${SET_SAMBATOOL} fsmo show | cut -d"," -f2 | head
> -n1 | cut -c4-100) | ${SET_TR} '[:upper:]' '[:lower:]')
> SAMBA_DC1="${SAMBA_DC_FSMO}.${SETDNSDOMAIN}"
> if [ -z "${SAMBA_DC1}" ]; then
>     error "No Samba DC Found with FSMO Roles, you might have dns problems"
>     error "exitting now..."
>     exit 0
> fi
>
> #SAMBA_DCS="$(echo ${DCS} | grep -v ${SAMBA_DC_FSMO})"
> SAMBA_DCS=$(echo "$DCS" | grep -v "${SAMBA_DC_FSMO}")
> if [ -z "${SAMBA_DCS}" ]; then
>     error "No Samba DC's Found with, you might have dns problems"
>     error "exitting now..."
>     echo $SAMBA_DCS
>     exit 0
> fi
>
> SAMBA_NT_DOMAINNAME="$($SET_SAMBATOOL domain info "${SAMBA_DC1}" | grep
> Netbios | cut -d":" -f2 | cut -c2-100)"
> ERROR: Invalid IP address 'dc1.subdom.example.com'!
> if [ -z "${SAMBA_NT_DOMAINNAME}" ]; then
>     error "No Samba NT DOMAIN Name found"
>     error "exitting now..."
>     exit 0
> fi
> No Samba NT DOMAIN Name found
>               exitting now...
>

What to do?