(SOLVED) Domain URL and Email not working

I have tried to follow the tutorial, but still can't send and receive email. Attached are my configuration in ISPC, and in Testing I did as follows:

root@srv:~# host fisip-unmul.net 103.27.206.139
Using domain server:
Name: 103.27.206.139
Address: 103.27.206.139#53
Aliases:
fisip-unmul.net has address 103.27.206.139
fisip-unmul.net mail is handled by 10 mail.fisip-unmul.net.

root@srv:~# host srv.fisip-unmul.net 103.27.206.139
Using domain server:
Name: 103.27.206.139
Address: 103.27.206.139#53
Aliases:
Host srv.fisip-unmul.net not found: 3(NXDOMAIN)

• root@srv:~# named-checkzone 206.27.103.in-addr.arpa /etc/bind/pri.206.27.103.in-addr.arpa.err
  zone 206.27.103.in-addr.arpa/IN: loading from master file /etc/bind/pri.206.27.103.in-addr.arpa.err
  failed: file not found
  zone 206.27.103.in-addr.arpa/IN: not loaded due to errors.
• 
  root@srv:~# service bind9 start
  root@srv:~# service bind9 stop
  root@srv:~# service bind9 restart
  root@srv:~# service bind9 reload
  root@srv:~# service bind9 status
  ● bind9.service - BIND Domain Name Server
  Loaded: loaded (/lib/systemd/system/bind9.service; disabled; vendor preset: enabled)
  Active: active (running) since Sun 2020-05-03 17:58:00 UTC; 3min 8s ago
  Docs: man:named(8)
  Process: 12135 ExecReload=/usr/sbin/rndc reload (code=exited, status=0/SUCCESS)
  Main PID: 12091 (named)
  Tasks: 12 (limit: 4915)
  CGroup: /system.slice/bind9.service
  └─12091 /usr/sbin/named -f -u bind
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: automatic empty zone: EMPTY.AS112.ARPA
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: none:103: 'max-cache-size 90%' - setting to 11102MB (out of 12336MB)
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: configuring command channel from '/etc/bind/rndc.key'
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: configuring command channel from '/etc/bind/rndc.key'
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: reloading configuration succeeded
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: reloading zones succeeded
  May 03 17:58:11 srv.fisip-unmul.net rndc[12135]: server reload successful
  May 03 17:58:11 srv.fisip-unmul.net systemd[1]: Reloaded BIND Domain Name Server.
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: all zones loaded
  May 03 17:58:11 srv.fisip-unmul.net named[12091]: running

I am still not sure what is actually the problem of inability to send and receive email, and don't know how to fix the error (OS Ubuntu 18.04).

 

well, your reverse lookup zone is wrong to start with, you've included too many octets, 139.206.27.103.in-addr-arpa

as taleman points out in his tutorial, that he pointed you to:

and it's really only of any use if you're using the nameserver on an internal network. your ip provider is doing the reverse dns for you're public ip's
since you have both nameserver records pointing to this one server, i'm going to go out on a limb and say that this is a single-server ispconfig setup, and you don't have any other vps's/computers on the network, and probably at this stage have no plans for any, so you can just delete that only reverse dns zone.


now for email sending/receiving. perhaps start with the simplest test. local mail. create two mailboxes in ispconfig, it's ok if they're on the same domain. and try to send from one of those to the other. does that work? if not, what it is in /var/log/mail.log?

 

I have deleted 139.206.27.103.in-addr-arpa zone and its records. I tested local email by using to emailbox [email protected] and [email protected]. Both emails cannot send and receive email each other. Then I tried ssh:

root@srv:~# /var/log/mail.log
bash: /var/log/mail.log: Permission denied
root@srv:~# sudo chmod 775 /var/log
root@srv:~# /var/log/mail.log
bash: /var/log/mail.log: Text file busy
(I can't resolve this although I have tried searching the solution)

Following the forum thread, I tried master.cf:
root@srv:~# /etc/postfix/master.cf
/etc/postfix/master.cf: line 12: smtp: command not found
/etc/postfix/master.cf: line 18: -o: command not found
/etc/postfix/master.cf: line 19: -o: command not found
/etc/postfix/master.cf: line 20: -o: command not found
/etc/postfix/master.cf: line 21: $'\r': command not found
/etc/postfix/master.cf: line 31: -o: command not found
/etc/postfix/master.cf: line 32: -o: command not found
/etc/postfix/master.cf: line 33: -o: command not found
/etc/postfix/master.cf: line 34: $'\r': command not found
/etc/postfix/master.cf: line 43: pickup: command not found
/etc/postfix/master.cf: line 44: cleanup: command not found
/etc/postfix/master.cf: line 45: qmgr: command not found
/etc/postfix/master.cf: line 47: tlsmgr: command not found
/etc/postfix/master.cf: line 48: rewrite: command not found
/etc/postfix/master.cf: line 49: bounce: command not found
/etc/postfix/master.cf: line 50: defer: command not found
/etc/postfix/master.cf: line 51: trace: command not found
/etc/postfix/master.cf: line 52: verify: command not found
/etc/postfix/master.cf: line 53: flush: command not found
/etc/postfix/master.cf: line 54: proxymap: command not found
/etc/postfix/master.cf: line 55: proxywrite: command not found
/etc/postfix/master.cf: line 56: smtp: command not found
/etc/postfix/master.cf: line 57: relay: command not found
/etc/postfix/master.cf: line 58: -o: command not found
/etc/postfix/master.cf: line 60: showq: command not found
/etc/postfix/master.cf: line 61: error: command not found
/etc/postfix/master.cf: line 62: retry: command not found
/etc/postfix/master.cf: line 63: discard: command not found
/etc/postfix/master.cf: line 64: local: can only be used in a function
/etc/postfix/master.cf: line 65: virtual: command not found
/etc/postfix/master.cf: line 66: lmtp: command not found
/etc/postfix/master.cf: line 67: anvil: command not found
/etc/postfix/master.cf: line 68: scache: command not found
/etc/postfix/master.cf: line 82: maildrop: command not found
/etc/postfix/master.cf: line 83: -d: command not found
/etc/postfix/master.cf: line 114: uucp: command not found
/etc/postfix/master.cf: line 115: syntax error near unexpected token `('
/etc/postfix/master.cf: line 115: ` flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)'

Not sure where the problem resides.

 

Those files /var/log/mail.log and /etc/postfix/master.cf are not commands. They can not be executed because they are a log file and a configuration file. Turning on the execute permission with chmod does not make them commands.
Since they are text files, you can read what they contain, use less /var/log/mail.lor or more or some similar command.
You should not change permissions on system files. I bet you did not make note of what the permissions were before you did chmod 755 so you could get it back the way it should be?
I suggest learning about Linux and command line use before further explorations. https://www.howtoforge.com/communit...or-a-first-time-linux-user.83782/#post-399369

 

you got lucky, for the chmod command you ran on /var/log you chose to set the same permissions the folder already had.
you need to be very careful when changing ownership or permissions on files/folders, and keep a note of what they were originally.
set the wrong permissions on a folder and you can very easily fubar the entire server.

as for:

I find it hard to believe someone would tell you to run a command like that on here.
if you mean you found it in the perfect server tutorial, that's linked from the email server tutorial taleman pointed you to, that actually says:

which actually says to open the file in the text editor nano, nano being the command and /etc/postfix/master.cf being the command option.
it's important, when following a tutorial not to miss out little details like that, it can change the whole outcome and leave you with a very broken server. i''m starting to wonder now, besides the dns being broken before, if your email problem is because you didn't successfully make the required changes to the smtps and submission sections in the master.cf file.

 

Thank you Taleman and nhybgtvfr. I forgot with nano command
Here are the files:
/var/log/mail.log

Code:

May  4 01:11:21 srv postfix/smtps/smtpd[27665]: SSL_accept error from unknown[45.142.195.7]: -1
May  4 01:11:21 srv postfix/smtps/smtpd[27665]: warning: TLS library problem: error:1408F10B:SSL routines:ssl3_g$
May  4 01:11:21 srv postfix/smtps/smtpd[27665]: lost connection after CONNECT from unknown[45.142.195.7]
May  4 01:11:21 srv postfix/smtps/smtpd[27665]: disconnect from unknown[45.142.195.7] commands=0/0
May  4 01:11:23 srv postfix/smtps/smtpd[28140]: connect from unknown[46.38.144.32]
May  4 01:11:34 srv postfix/smtps/smtpd[29048]: connect from unknown[46.38.144.179]
May  4 01:11:38 srv postfix/smtps/smtpd[27577]: SSL_accept error from unknown[45.142.195.6]: -1
May  4 01:11:38 srv postfix/smtps/smtpd[27577]: warning: TLS library problem: error:1408F10B:SSL routines:ssl3_g$
May  4 01:11:38 srv postfix/smtps/smtpd[27577]: lost connection after CONNECT from unknown[45.142.195.6]
May  4 01:11:38 srv postfix/smtps/smtpd[27577]: disconnect from unknown[45.142.195.6] commands=0/0
May  4 01:11:38 srv postfix/smtps/smtpd[27502]: SSL_accept error from unknown[185.143.74.49]: -1
May  4 01:11:38 srv postfix/smtps/smtpd[27502]: warning: TLS library problem: error:1408F10B:SSL routines:ssl3_g$
May  4 01:11:38 srv postfix/smtps/smtpd[27502]: lost connection after CONNECT from unknown[185.143.74.49]
May  4 01:11:38 srv postfix/smtps/smtpd[27502]: disconnect from unknown[185.143.74.49] commands=0/0

/etc/postpix/master.cf

Code:

# 
==================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (no)    (never) (100)
# ===================================================================
smtp      inet  n       -       y       -       -       smtpd
#smtp      inet  n       -       y       -       1       postscreen
#smtpd     pass  -       -       y       -       -       smtpd
#dnsblog   unix  -       -       y       -       0       dnsblog
#tlsproxy  unix  -       -       y       -       0       tlsproxy
#submission inet n       -       y       -       -       smtpd
  -o syslog_name=postfix/submission
  -o smtpd_tls_security_level=encrypt
  -o smtpd_sasl_auth_enable=yes
^M  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_tls_auth_only=yes
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=
#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#smtps     inet  n       -       y       -       -       smtpd
  -o syslog_name=postfix/smtps
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
^M  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=
#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#628       inet  n       -       y       -       -       qmqpd
pickup    unix  n       -       y       60      1       pickup
cleanup   unix  n       -       y       -       0       cleanup
qmgr      unix  n       -       n       300     1       qmgr
#qmgr     unix  n       -       n       300     1       oqmgr
tlsmgr    unix  -       -       y       1000?   1       tlsmgr
rewrite   unix  -       -       y       -       -       trivial-rewrite
bounce    unix  -       -       y       -       0       bounce
# Postfix master process configuration file.  For details on the format
# of the file, see the master(5) manual page (command: "man 5 master" or
# on-line: http://www.postfix.org/master.5.html).
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (no)    (never) (100)
# ==========================================================================
smtp      inet  n       -       y       -       -       smtpd
#smtp      inet  n       -       y       -       1       postscreen
#smtpd     pass  -       -       y       -       -       smtpd
#dnsblog   unix  -       -       y       -       0       dnsblog
#tlsproxy  unix  -       -       y       -       0       tlsproxy
#submission inet n       -       y       -       -       smtpd
  -o syslog_name=postfix/submission
  -o smtpd_tls_security_level=encrypt
  -o smtpd_sasl_auth_enable=yes
^M  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_tls_auth_only=yes
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=
#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#smtps     inet  n       -       y       -       -       smtpd
  -o syslog_name=postfix/smtps
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
^M  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=
#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#628       inet  n       -       y       -       -       qmqpd
pickup    unix  n       -       y       60      1       pickup
cleanup   unix  n       -       y       -       0       cleanup
qmgr      unix  n       -       n       300     1       qmgr
#qmgr     unix  n       -       n       300     1       oqmgr
tlsmgr    unix  -       -       y       1000?   1       tlsmgr
rewrite   unix  -       -       y       -       -       trivial-rewrite
bounce    unix  -       -       y       -       0       bounce
# Postfix master process configuration file.  For details on the format
# of the file, see the master(5) manual page (command: "man 5 master" or
# on-line: http://www.postfix.org/master.5.html).
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (no)    (never) (100)
# ==========================================================================
smtp      inet  n       -       y       -       -       smtpd
#smtp      inet  n       -       y       -       1       postscreen
#smtpd     pass  -       -       y       -       -       smtpd
#dnsblog   unix  -       -       y       -       0       dnsblog
#tlsproxy  unix  -       -       y       -       0       tlsproxy
#submission inet n       -       y       -       -       smtpd
  -o syslog_name=postfix/submission
  -o smtpd_tls_security_level=encrypt
  -o smtpd_sasl_auth_enable=yes
^M  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_tls_auth_only=yes
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=
#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#smtps     inet  n       -       y       -       -       smtpd
  -o syslog_name=postfix/smtps
  -o smtpd_tls_wrappermode=yes
  -o smtpd_sasl_auth_enable=yes
^M  -o smtpd_client_restrictions=permit_sasl_authenticated,reject
#  -o smtpd_reject_unlisted_recipient=no
#  -o smtpd_client_restrictions=$mua_client_restrictions
#  -o smtpd_helo_restrictions=$mua_helo_restrictions
#  -o smtpd_sender_restrictions=$mua_sender_restrictions
#  -o smtpd_recipient_restrictions=
#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#  -o milter_macro_daemon_name=ORIGINATING
#

 

Code:

#628       inet  n       -       y       -       -       qmqpd
pickup    unix  n       -       y       60      1       pickup
cleanup   unix  n       -       y       -       0       cleanup
qmgr      unix  n       -       n       300     1       qmgr
#qmgr     unix  n       -       n       300     1       oqmgr
tlsmgr    unix  -       -       y       1000?   1       tlsmgr
rewrite   unix  -       -       y       -       -       trivial-rewrite
bounce    unix  -       -       y       -       0       bounce
defer     unix  -       -       y       -       0       bounce
trace     unix  -       -       y       -       0       bounce
verify    unix  -       -       y       -       1       verify
flush     unix  n       -       y       1000?   0       flush
proxymap  unix  -       -       n       -       -       proxymap
proxywrite unix -       -       n       -       1       proxymap
smtp      unix  -       -       y       -       -       smtp
relay     unix  -       -       y       -       -       smtp
        -o syslog_name=postfix/$service_name
#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq     unix  n       -       y       -       -       showq
error     unix  -       -       y       -       -       error
retry     unix  -       -       y       -       -       error
discard   unix  -       -       y       -       -       discard
local     unix  -       n       n       -       -       local
virtual   unix  -       n       n       -       -       virtual
lmtp      unix  -       -       y       -       -       lmtp
anvil     unix  -       -       y       -       1       anvil
scache    unix  -       -       y       -       1       scache
#
# ====================================================================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop  unix  -       n       n       -       -       pipe
  flags=DRhu user=vmail argv=/usr/bin/maildrop -d vmail ${extension} ${recipient} ${user} ${nexthop} ${sender}
#
# ====================================================================
#
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
#
# Specify in cyrus.conf:
#   lmtp    cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
#
# Specify in main.cf one or more of the following:
#  mailbox_transport = lmtp:inet:localhost
#  virtual_transport = lmtp:inet:localhost
#
# ====================================================================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus     unix  -       n       n       -       -       pipe
#  user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# ====================================================================
# Old example of delivery via Cyrus.
#
#old-cyrus unix  -       n       n       -       -       pipe
#  flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
#
# ====================================================================
#
# See the Postfix UUCP_README file for configuration details.
#
uucp      unix  -       n       n       -       -       pipe
  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail    unix  -       n       n       -       -       pipe
  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp     unix  -       n       n       -       -       pipe
  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix  -       n       n       -       2       pipe
  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
amavis unix - - - - 2 smtp
        -o smtp_data_done_timeout=1200
        -o smtp_send_xforward_command=yes
                -o smtp_bind_address=


127.0.0.1:10025 inet n - n - - smtpd
        -o content_filter=
        -o local_recipient_maps=
        -o relay_recipient_maps=
        -o smtpd_restriction_classes=
        -o smtpd_client_restrictions=
        -o smtpd_helo_restrictions=
        -o smtpd_sender_restrictions=
        -o smtpd_recipient_restrictions=permit_mynetworks,reject
        -o mynetworks=127.0.0.0/8
        -o strict_rfc821_envelopes=yes
        -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
        -o smtp_send_xforward_command=yes
        -o disable_dns_lookups=yes


127.0.0.1:10027 inet n - n - - smtpd
        -o content_filter=
        -o local_recipient_maps=
        -o relay_recipient_maps=
        -o smtpd_restriction_classes=
        -o smtpd_client_restrictions=
        -o smtpd_helo_restrictions=
        -o smtpd_sender_restrictions=
        -o smtpd_recipient_restrictions=permit_mynetworks,reject
        -o mynetworks=127.0.0.0/8
        -o strict_rfc821_envelopes=yes
        -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks
        -o smtp_send_xforward_command=yes
            -o milter_default_action=accept
        -o milter_macro_daemon_name=ORIGINATING
        -o disable_dns_lookups=yes

 

It's a complete script of the master,cf file actually, but i was limited to post no more than 1000 characters, so I split it into two. For the first two suggestions, I follow them by uncommenting smtps and submission, removing double ^M and then # postfix stop && postfix start. Bump! It works like a charm.
I can now send and receive email from/to around the globe. Actually, it's very easy solution but got headache for days. So happy now. Anyway, thank you very much to all of you in helping and guiding me. Bravo ISPC!!
(I actually would like to change the title of this thread to: "(SOLVED) Domain URL and Email Not Working", but I think have no access).

 

What @till was referring to was that the master.cf you posted has it's contents twice. Your paste starts with

Code:

#
==================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args

and then same lines again later. Now that I looked more closely, it is actually three (3) times!

Yes you have. For a thread you started yourself, there is "Thread tools" at the top where you can edit title.

 

Sorry for that... I don't realize it as I copied from ssh to text file and then to the forum. I have changed the title.