Change time zone on Linux

# ln -sf /usr/share/zoneinfo/Asia/Ho_Chi_Minh /etc/localtime
type date to confirm that date changed
NSN

Send mail via telnet

1. Telnet to hostname on port 25
2. HELO your_domain_name or whatever
3. MAIL FROM:[email protected] (ie, your email address)
4. RCPT TO:them@someplace_else.com (email address you want to send to)
5. DATA
6. You type your message then CRLF period CRLF (ie, type a period on a line by itself then hit ENTER)
7. QUIT
NSN

Can not mount nfs to xenserver

You must install more this package to can mount:

# yum install nfs-utils -y

Đức