not able to set bind-address=[ip of my server] in mysql - mysql

Question

I want to create a master-slave replication on ubuntu servers.
both(master and slave) on different servers.
i made my.cnf(without coments) file on master as:
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
[mysqld]
bind-address=my_server_ip
server-id=1
log_bin=/var/log/mysql/mysql-bin.log
binlog_do_db=indicators
then i restart using sudo service mysql restart and get the following error:
Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details
but when i set bind-address=127.0.0.1 it works fine.
below is the reference is used which says bind-address should be the address of master server
https://www.digitalocean.com/community/tutorials/how-to-set-up-master-slave-replication-in-mysql
but it contadicts with below link which says(under comments section) bind-address is the ip of slave
https://dev.mysql.com/doc/refman/5.7/en/replication-howto-masterbaseconfig.html
systemctl status mysql.service as in above error code
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset:
enabled)
Active: activating (start-post) (Result: exit-code) since Sat 2017-11-04
07:12:12 UTC; 11s ago
Process: 25213 ExecStart=/usr/sbin/mysqld (code=exited, status=1/FAILURE)
Process: 25205 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre
(code=exited, status=0/SUCCESS)
Main PID: 25213 (code=exited, status=1/FAILURE); : 25214 (mysql-
systemd-s)
Tasks: 2
Memory: 400.0K
CPU: 250ms
CGroup: /system.slice/mysql.service
└─control
├─25214 /bin/bash /usr/share/mysql/mysql-systemd-start post
└─25267 sleep 1
Nov 04 07:12:12 fundexpert-test-r systemd[1]: mysql.service: Service hold-
off time over, scheduling restart.
Nov 04 07:12:12 fundexpert-test-r systemd[1]: Stopped MySQL Community
Server.
Nov 04 07:12:12 fundexpert-test-r systemd[1]: Starting MySQL Community
Server...
Nov 04 07:12:14 fundexpert-test-r systemd[1]: mysql.service: Main process
exited, code=exited, status=1/FAILURE
journalctl -xe says:
-- Subject: Unit mysql.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has failed.
--
-- The result is failed.
Nov 04 07:12:42 fundexpert-test-r systemd[1]: mysql.service: Unit entered
failed state.
Nov 04 07:12:42 fundexpert-test-r systemd[1]: mysql.service: Failed with
result 'exit-code'.
Nov 04 07:12:43 fundexpert-test-r systemd[1]: mysql.service: Service hold-
off time over, scheduling restart.
Nov 04 07:12:43 fundexpert-test-r systemd[1]: Stopped MySQL Community
Server.
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has finished shutting down.
Nov 04 07:12:43 fundexpert-test-r systemd[1]: Starting MySQL Community
Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd

Answer 1

below is the reference is used which says bind-address should be the address of master server
No it doesn't. It says 'replace the standard IP address with the IP address of server'. The word 'master' does not appear.
but it contadicts with below link which says(under comments section) bind-address is the ip of slave
No it doesn't. It says 'you will have to make sure that the slave's address or hostname is matched by the bind-address setting'.
You cannot bind to a non-local IP address.