Difference between revisions of "hidden:Redirect local root mail to an external email address on HPSS servers"

From Lsdf
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===Redirect local root mail to an external email address on HPSS servers===
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== Redirect local root mail to an external email address on HPSS servers==
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1. Check if "postfix" bzw. sendmail mail server is already installed.
  
1. Check if "postfix" bzw. sendmail mail server is already installed.
   
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#echo "Hello from hpsscr01." | mail -s "hpsscr01 email-test-message" root
  
#echo "Hello from hpsscr01." | mail -s "hpsscr01 email-test-message" root
   
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===Relaying Emails through another Server===
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== Relaying emails through another Server==
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As hpssmvr04 does not have a 141.* but an external Gridka IP 192.108.47.248 it can not send out emails via postfix to KIT mailserver.
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Therefore we have to use one of the other hpss movers acting as a relayhost for hpssmvr04.
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=== hpssmvr04 configuration ===
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1. set relayhost hpssmvr03
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# vi /etc/postfix/main.cf
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relayhost = 192.168.0.13
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we use the internal 192.168.0.* IPs.
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2. Restart postfix
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# service postfix restart
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=== hpssmvr03 configuration ===
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1. use the KIT mailserver scc-mailin-cn-01.scc.kit.edu as the remote mailserver on which you have a valid email account with the username and password.
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2. perform the following commands
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# postconf -e 'relayhost = scc-mailin-cn-01.scc.kit.edu'
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# postconf -e 'smtp_sasl_auth_enable = yes'
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# postconf -e 'smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd'
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# postconf -e 'smtp_sasl_security_options ='
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3. Create a sasl_passwd file with a valid email account
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# echo "<KIT remote mailserver> <valid-email-account>:<password>" > /etc/postfix/sasl_passwd
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e.g:
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# echo "scc-mailin-cn-01.scc.kit.edu ahmad.hammad@kit.edu:<password>" > /etc/postfix/sasl_passwd
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4. Set file permissions
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# Chown root:root /etc/postfix/sasl_passwd
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# chmod 600 /etc/postfix/sasl_passwd
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5. Create sasl_passwd.db file that postfix can read
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# postmap /etc/postfix/sasl_passwd
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6. Let also 192.168.0.13 listen on Port 25 (smpt)
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# vi /etc/postfix/main.cf
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inet_interfaces = 192.168.0.13,localhost
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7. Restart postfix
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# service postfix restart
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=== Test from hpssmv04 ===
   
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# echo "mailtest from hpssmvr04" | mail -s "mailtest from hpssmvr04" root
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1. use scc-mailin-cn-01.scc.kit.edu as the remote mailserver on which I have a valid email account with the username and password.
  

Revision as of 17:27, 20 January 2017

Redirect local root mail to an external email address on HPSS servers

1. Check if "postfix" bzw. sendmail mail server is already installed.

Notice: on RHEL Hosts postfix is already installed but on SL hosts its sendmail. 

# service postfix status

# yum install postfix (On HPSS Server it was already installed and running)

2. Edit /etc/aliases 

root: hpss-admin@lists.kit.edu

4. Run command on shell: 

# newaliases

5. Restart mail server 

# service postfix restart

6. Test 

#echo "Hello from hpsscr01." | mail -s "hpsscr01 email-test-message" root

Relaying emails through another Server

As hpssmvr04 does not have a 141.* but an external Gridka IP 192.108.47.248 it can not send out emails via postfix to KIT mailserver. Therefore we have to use one of the other hpss movers acting as a relayhost for hpssmvr04.

hpssmvr04 configuration

1. set relayhost hpssmvr03 

# vi /etc/postfix/main.cf
 relayhost = 192.168.0.13

we use the internal 192.168.0.* IPs.

2. Restart postfix 

# service postfix restart

hpssmvr03 configuration

1. use the KIT mailserver scc-mailin-cn-01.scc.kit.edu as the remote mailserver on which you have a valid email account with the username and password.

2. perform the following commands 

# postconf -e 'relayhost = scc-mailin-cn-01.scc.kit.edu'
# postconf -e 'smtp_sasl_auth_enable = yes'
# postconf -e 'smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd'
# postconf -e 'smtp_sasl_security_options ='

3. Create a sasl_passwd file with a valid email account 

# echo "<KIT remote mailserver>  <valid-email-account>:<password>" > /etc/postfix/sasl_passwd

e.g: 

# echo "scc-mailin-cn-01.scc.kit.edu  ahmad.hammad@kit.edu:<password>" > /etc/postfix/sasl_passwd

4. Set file permissions 

# Chown root:root /etc/postfix/sasl_passwd
# chmod 600 /etc/postfix/sasl_passwd

5. Create sasl_passwd.db file that postfix can read 

# postmap /etc/postfix/sasl_passwd

6. Let also 192.168.0.13 listen on Port 25 (smpt) 

# vi /etc/postfix/main.cf
inet_interfaces = 192.168.0.13,localhost

7. Restart postfix 

# service postfix restart

Test from hpssmv04

# echo "mailtest from hpssmvr04" | mail -s "mailtest from hpssmvr04" root
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