go to https://whatismyipaddress.com and get IP number example: 123.123.123.123
SELECT User, Host FROM mysql.user WHERE 1 AND Host != ‘localhost’ ;
## optionally REMOVE:
DROP USER ‘MarkEdwards’@‘321.321.321.321’ ;
CREATE USER ‘MarkEdwards’@‘123.123.123.123’ IDENTIFIED BY ‘MarksPassword’;
GRANT ALL ON `comptonPractice`.* TO ‘MarkEdwards’@‘123.123.123.123’ IDENTIFIED BY ‘MarksPassword’
WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0;
GRANT ALL PRIVILEGES ON `comptonPractice`.* TO ‘MarkEdwards’@‘123.123.123.123’;
/etc/csf/csf.allow:
tcp|in|d=3306|s=123.123.123.123
123.123.123.123 ## CenturyLink Phoenix — 2021-01-30
d= – destination
s= – source ;-)
systemctl restart csf.service ; ## important???
systemctl restart iptables ; ## important ???
iptables —flush ; ## VERY IMPORTANT!!!!!!
—dry-run — flag to experiment
ON REMOTE BOX:
dnf —assumeyes install rsync ;
sudo cat /etc/ssh/sshd_config | grep PasswordAuthentication ; ## look for ‘yes’
ON LOCAL BOX:
su comptonpeslonline.com ;
cat /home/comptonpeslonline.com/.ssh/known_hosts ; ## delete any previous keys so the first login will prompt for it.
ssh comptonpeslonline.com@35.192.35.140 ; ## verify login works, prompts for password
ssh-keygen ; ## creates /home/comptonpeslonline.com/.ssh/id_rsa.pub !
ssh-copy-id -i /home/comptonpeslonline.com/.ssh/id_rsa.pub comptonpeslonline.com@104.218.50.87 ; ## prompts for password
##ssh-copy on LOCAL: does nothing (??)
##ssh-copy on REMOTE: adds line to /home/comptonpeslonline.com/.ssh/authorized_keys
ssh comptonpeslonline.com@35.192.35.140 ; ## verify login works, stops prompting for password
## 2020-09-01 (is —owner really required??)
sshpass -p “XXXXXXXXXXXXx” \
runuser —user comptonpeslonline.com — /usr/bin/rsync \
—dry-run —verbose —archive \
—owner=comptonpeslonline.com \
/home/comptonpeslonline.com/ \
comptonpeslonline.com@edwardsmarkf.info:/home/comptonpeslonline.com/ \
;
rsync —verbose —archive /home/comptonpeslonline.com/public_html/ \
comptonpeslonline.com@104.218.50.87:/home/comptonpeslonline.com/public_html/
sshpass and rsync ======= — 2020-01-22
sync data between different servers (or possibly the same one)
sshpass -p “zXXXX” \
rsync —verbose —archive \
mark@comptonpeslonline.info:/home/mark/rsyncTest \
/home/mark/ ; ## NEW to OLD!
sshpass -p “XXX” \
rsync —verbose —archive \
/home/mark/rsyncTest \
mark@comptonpeslonline.info:/home/mark/ ; # OLD to NEW!
## remote usage, notice StrictHostKeyChecking was required in some instances.
sshpass -p ‘XXX’ \
rsync —dry-run —verbose —archive \
—rsh=“ssh -o StrictHostKeyChecking=no” \
/home/comptonpeslonline.com \
comptonpeslonline.com@edwardsmarkf.info:/home/comptonpeslonline.com ;
## this machine to a “remote” machine! (notice ‘dry-run’ — remove it!)
## https://www.digitalocean.com/community/tutorials/how-to-use-rsync-to-sync-local-and-remote-directories-on-a-vps
cd ~ ; ssh-keygen -t rsa ; ### create a new keyset at the root directory
ssh-copy-id —dry-run comptonpeslonline.com@edwardsmarkf.info ;
### copy key to appropriate place
==========================================
for insecure uses, generate a “special” password here: https://myaccount.google.com/u/2/apppasswords?rapt=AEjHLxxxxxx
“special” password is used for mailx (mail.rc) and SMTPMailer.php and insecure nodeMailer
mailx
mailx – uses /etc/mail.rc uses password generated in the step above.
EXAMPLE:
echo `date` | /usr/bin/mailx -A gmailSMTP-noreply -s “test subject TEST” mark@edwardsmark.com ;
/etc/mail.rc:
account gmailSMTP-noreply {
set smtp-use-starttls
set ssl-verify=ignore
set smtp-auth=login
set smtp=smtp://smtp.gmail.com:587
set smtp-auth-user=noreply@comptonpeslonline.com
set smtp-auth-password=gXXXXv
set ssl-verify=ignore
set nss-config-dir=/home/comptonpeslonline.com/gmailCerts/
}
php
SMTPMailer.php:
define (‘DEFAULT_EMAIL’ , ‘noreply@comptonpeslonline.com’ );
define (‘PORT25TEST’ , ‘check-auth-edwardsmarkf=gmail.com@verifier.port25.com’ );
define (‘DEFAULT_SMTP_HOST’ , ‘smtp.gmail.com’ ); // 2016-12-05
define (‘DEFAULT_SMTP_LOGIN’ , ‘noreply@comptonpeslonline.com’ ); // 2016-12-05
define (‘DEFAULT_SMTP_PASSWD’ , ‘gXXXXXXXv’ );
nodeMailer Insecure
const nodemailer = require('nodemailer') ;
const authEmailAddy = 'info@comptonpeslonline.com' ;
const authPassword = 'zmcafzfppvquyqjj' ;
const transporter = nodemailer.createTransport(
{ service : 'gmail'
, auth :
{ user : authEmailAddy
, pass : authPassword
}
}
);
const mailOptions =
{ from : authEmailAddy
, to : 'mark@edwardsmark.com'
//, cc : teacherNameAndEmail
, bcc : 'mark@edwardsmark.com'
, subject : 'test subject from testSecureMailer.js'
, text : 'test text body from testSecureMailer.js'
, html : '<h3>test html body from testSecureMailer.js</h3>'
};
transporter.sendMail(mailOptions, (err, res) => {
if (err) {
console.log('Failed mailing to ' + ': ' + JSON.stringify(res));
return console.log(err);
} else {
console.log('Successful mailing to ' + userObject.userEmail + ': ' + JSON.stringify(res));
}
});
nodeMailer with Oauth
node uses an “auth0” approach:
step one:
log out of all accounts (or do all this in firefox)
step two:
https://console.cloud.google.com/apis/credentials/oauthclient/
step three:
enter https://developers.google.com/oauthplayground/
step four:
approve
step five:
create and copy the Refresh token:

https://nodemailer.com/smtp/oauth2/
const nodemailer = require(‘nodemailer’) ;
const authEmailAddy = ‘noreply@comptonpeslonline.com’ ;
const clientId = ‘6884XXXXXXh6n.apps.googleusercontent.com’ ;
const clientSecret = ‘SXXXXXXS’ ;
const refreshToken = ’1//0XXXXCq4’ ;
const auth =
{ type : ‘oauth2’
, user : authEmailAddy
, clientId
, clientSecret
, refreshToken
};
const transporter = nodemailer.createTransport(
{ service : ‘gmail’
, auth
}
);
node example: /home/comptonpeslonline.com/public_html/comptonPractice/homeworkAssignment/ticklerMailer/ticklerMailer.js
written from:
https://tanaikech.github.io/2018/01/08/send-mails-from-gmail-using-nodemailer/
https://medium.com/@nickroach_50526/sending-emails-with-node-js-using-smtp-gmail-and-oauth2-316fe9c790a1
https://dev.to/documatic/send-email-in-nodejs-with-nodemailer-using-gmail-account-2gd1
https://stackoverflow.com/questions/24098461/nodemailer-gmail-what-exactly-is-a-refresh-token-and-how-do-i-get-one
https://stackoverflow.com/questions/72128433/authenticating-google-gmail-api-using-access-and-refresh-token
2023-09-14 ================================================
to bypass creating an account in /etc/mail.rc :
1) add new password in /etc/postfix/sasl/sasl_passwd
2) postmap -v /etc/postfix/sasl/sasl_passwd ;
3) systemctl reload postfix ; systemctl restart postfix ; systemctl status postfix ;
https://www.javascripttutorial.net/javascript-anonymous-functions/
( () => {
console.log(‘Immediately invoked function execution’);
}) ();