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May 07, 2010

OpenSSH server on Ubuntu and access via Mac

Started at this link.

Then loaded openSSH following this link. Although I used a different port and used ufw to configure the firewall:

1) Netstat will print network connections (make sure SSH not already installed?):
$ sudo netstat -tulpn

2) Install openSSH:
$ sudo apt-get install openssh-server

3) Check to see if SSH is running (program=sshd)
$ sudo netstat -tulpn
$ sudo ufw allow [port]

4) Tighten security a tiny bit:

a) Edit config file
$ sudo nano /etc/ssh/sshd_config
b) Change port number
c) Control users who can login: AllowUsers [user1] [user2]
d) restart ssh server
$ sudo /etc/init.d/ssh restart

5) Open port:
$ sudo ufw allow [port]

6) Install LogWatch to monitor activity on the Ubuntu Box. Note, this seems to install PostFix (email server) if not already present.

$ sudo apt-get update

$ sudo apt-get install logwatch

This command will print out a report:
$ logwatch

Logs kept here:
$ cd /var/log

7) Set system emails to forward to your email account:

$ sudo nano /etc/aliases
Add this line:
root: joblow@google.net

Other notes:

Then, to ssh in (from Mac):

Applications > Utilities > Terminal

$ ssh [username]@[hostname.umich.edu] -p [port]


I toyed with this link but decided not to go there. Don't fix it if it is not broken.

Posted by kkwaiser at May 7, 2010 12:05 PM

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