I was about to say SSH is a trusted service. On Tue, Jan 4, 2011 at 1:13 PM, keith smith wrote: > Ok, Thanks! No GUI on these boxes. All CL. > > ------------------------ > Keith Smith > > --- On *Tue, 1/4/11, JD Austin * wrote: > > > From: JD Austin > Subject: Re: Opening, blocking and changing ports on RedHat > To: "Main PLUG discussion list" > Date: Tuesday, January 4, 2011, 1:02 PM > > > Yes however you can open the port from the GUI under > system-> administration -> security level and firewall > if you don't want to poke around on the command line. > Likely the reason you don't have to open the special service for ssh is > that sshd is a trusted service. > JD > On Tue, Jan 4, 2011 at 12:52, keith smith > > wrote: > > > > Hi, > > I'm working on several CentOS and one RHEL servers. I needed to open a > port the other day so I did a search and the info I found lead me to believe > the only way to open or close a port was via iptables. Is that the complete > story? > > For example, if I want to open port 3306 for MySql I need two things? 1) > The port needs to be listed in /etc/services (RedHat) and 2) the port needs > to be opened via iptables. > > If I use a non-standard port (3306) I must add a line to the /etc/my.conf > that defines the port such as "port=xxxx". > > Here is a twist. I set my SSHD to port 2200 but did not change > /etc/services, which lists ici on port 2200 for both tcp and udp. I am able > to shell in using port 2200. Why no conflict? > > Thank you for your insight. > > > > ------------------------ > Keith Smith > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > > > -----Inline Attachment Follows----- > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us > To subscribe, unsubscribe, or to change your mail settings: > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss > -- A mouse trap, placed on top of your alarm clock, will prevent you from rolling over and going back to sleep after you hit the snooze button. Stephen