about telnet

[zallen]

Hi,friend
After installing Redhat7(seawolf) i can telnet itself on the same box,But i cannot telnet to it from other windows box though i can ping it.

Any suggestion is appreciated! zallen@cmmail.com
Long live of freedom!

 

[ifincham]

Hi,

You need to install the telnet-server rpm if it's not already installed. Try 'rpm -qa | grep telnet'. If its not there install that rpm first.

Once you've done that, edit the /etc/xinet.d/telnet file and change 'disable=yes' to 'disable=no'. Then restart the xinetd daemon by '/etc/rc.d/init.d/xinetd restart'. Your telnet server should now work. (i'm assuming there is no firewalling in place here...)

Rgds

 

[ifincham]

Oops, think I misread your question a bit. If the server is working on your linux box and it's a question of remote access then check /etc/hosts.allow and /etc/hosts.deny to see if there are any restrictions there. Otherwise, I would guess it's firewalled. Redhat 7.1 ships with a ipchains based firewall which could have been turned on during install.

To configure the RH firewall, from a console window, do a 'su -' and provide root password. Then do 'setup' and select 'firewall-configuration'. Or do 'gnome-lokkit' direct from Xterm. See

http://www.redhat.com/support/docs/firewall.html

for redhat related firewall information.

Rgds

 

[zallen]

Thank you very much!
Sorry for my poor English . I think it is the firewall to disable the remote visit .I will test it once i return to my office.

Regards! zallen@cmmail.com
Long live of freedom!

 

[zallen]

After i diable the firewall i can telnet it from windows box now.But one same problem appears! i can use mysql client side on the same linux box as the mysql server(version:3.23.36).When i use mysql client side on windows i cannot connect to the linux box.
The message is Host 'myhost-name' is not allowed to connect to this MySQL server.(BTW i test it using 3.23.28 and 3.23.38 for windows).
The /var/log/mysqld.log can give me nothing

Any help are greatly appreciated! zallen@cmmail.com
Long live of freedom!

 

[rninja]

Just use ssh. it's more secure.


Hope this helps!!


Rninja

 

[ifincham]

Hi,

The mysql problem is no doubt because mysql checks the user grant table for the column 'Host' associated with the 'User'. Most likely, you would have a value of 'localhost' in that column for the row containing the user you are connecting with.

To allow access from anywhere in a domain you would do something like :

INSERT INTO user (Host, User, password)
VALUES("%.yourdomain.com","Ausername",
PASSWORD("topsecret&quot);


Regards.

 

[zallen]

ifincham :
Thanks you! but it doesnot work.Do i need to add %.yourdomain.com in /etc/host.allow?

Regards! zallen@cmmail.com
Long live of freedom!