U Uto, 14. 04. 2009., u 10:30 -0500, [email protected] je napisao/la: > The second page is reachable now.
'Ironically the first two entries: the Post Office Protocol version 3 (pop3) and the Internet Message Access Protocol version 2 (imap2) are installed and running despite Ubuntu having installed the more secure versions. Both of these older protocols were needed in years past for interoperability with older mail programs, but all major mail programs now support the more secure versions. (The biggest issues with these older services are clear text passwords; however, POP2 servers have also been vulnerable to root compromises.)' Author doesn't understand 'netstat', but uses its output to put a claim. So, let's start: 1) Ubuntu (dovecot actually) doesn't support POP2 - even the netstat output doesn't show pop2 2) Ubuntu (dovecot actually) doesn't support IMAP2 3) What Ubuntu (dovecot actually) supports are - POP3 and IMAP4rev1 Author should know that IMAP4 is extension of IMAP2, so it uses the same port as imap2. As you can't define multiple names to one port in /etc/services, sane practice is to put imap2 there. netstat reads /etc/services and then claims that protocol is imap2. Next, bootpc UDP is port opened by dhclient. This guy is runing dhcp server without being aware of that. netstat tip #2 'sudo netstat -aup | grep boot'. So, B- for authors knowledge of UNIX/Linux systems. Next are users with /bin/bash. If those users would have /bin/false, they won't be able to run jobs from cron. Of course, there are some valid points, but also lots of nonsense. -- ubuntu-server mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
