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| − | * Email overview
| + | [http://wiki.littlesvr.ca/wiki/OPS345_Lab_6 This page has moved.] |
| − | * Create a new VM named 'email' in vpc-ops345, 10.3.45.12, with an extra 4GB EBS volume, ops345sgemail, email.asmith15.ops345.ca
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| − | * ssh only from ops345sgprivate
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| − | * add an iptables rule on router to forward port 2212 to email:22, don't forget to edit ops345sg
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| − | * email_public_ip
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| − | * add A record for email now since it will take some time to propagate
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| − | * add MX email.asmith15.ops345.ca.[1]
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| − | * test on router first, records are cached for 60 minutes. test on www second, email third, finally make sure it works on the workstation
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| − | * same instructions as for vg_www-lv_www but vg_email-lv_email, mounted on /home
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| − | * but also mount it on /tmp/home, and move everything from /home to /tmp/home before rebooting
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| − | ** can lose access to ssh key if don't do it right - see what happens if mount on /home without
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| − | <source>[root@email ~]# vi /etc/fstab
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| − | [root@email ~]# mount /home/
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| − | [root@email ~]# ls /home/
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| − | lost+found
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| − | # try to ssh now, it won't work
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| − | [root@email ~]# umount /home/
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| − | [root@email ~]# mkdir /tmp/home
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| − | [root@email ~]# mount /dev/mapper/vg_email-lv_email /tmp/home/
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| − | [root@email ~]# cd /home/
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| − | [root@email home]# ls -a | |
| − | . .. andrew
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| − | [root@email home]# mv andrew/ /tmp/home/
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| − | [root@email home]# cd /
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| − | [root@email /]# ls /home/
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| − | [root@email /]# ls /tmp/home/
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| − | andrew lost+found
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| − | [root@email /]# umount /tmp/home/
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| − | [root@email /]# ls /tmp/home/
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| − | [root@email /]# ls /home/
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| − | [root@email /]# mount /home/
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| − | [root@email /]# ls -a /home/andrew/
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| − | . .. .bash_history .bash_logout .bash_profile .bashrc .ssh
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| − | [root@email /]# reboot
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| − | </source>
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| − | * Confirm confirm can still log in. if not: have to rebuild email vm
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| − | * The LV on a separate storage device is as valuable as the www LV. If the Vm is lost or damaged: EBS device is still there, and it's also easier to back up.
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| − | * connect to myseneca email using thunderbird on linux mint
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| − | * postfix is installed by default, but only used for localhost
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| − | * instal dovecot to get dovecot-lda
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| − | * /etc/postfix/main.cf:
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| − | ** mydomain = asmith15.ops345.ca
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| − | ** inet_interfaces = all
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| − | ** mydestination include mydomain
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| − | ** myorigin later
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| − | * restart postfix
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| − | * ss -atnp
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| − | * add access to port 25 from anywhere in ops345sgemail
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| − | * test using telnet from workstation
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| − | * send email from myseneca to asmith15@asmith15.ops345.ca
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| − | * check /var/log/maillog
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| − | * check ~/
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| − | * check /var/mail
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| − | * /etc/postfix/main.cf: mailbox_command = /usr/libexec/dovecot/dovecot-lda -f "$SENDER" -a "$RECIPIENT"
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| − | * /etc/dovecot/conf.d/10-mail.conf: mail_location = maildir:~/Maildir
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| − | * check /var/mail
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| − | * check ~/
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| − | * server can now receive email. cannot send reliably yet, and need to set up dovecot for imap (next lab)
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