Finding neighbours on my LAN

[Matthew Saltzman]

On Sun, 2014-01-19 at 00:32 +0100, Suvayu Ali wrote: 
> Hi Tim, Matthew, others,
> 
> On Fri, Jan 17, 2014 at 09:12:14PM +0000, Matthew Saltzman wrote:
> > On Fri, 2014-01-17 at 20:42 +0100, Suvayu Ali wrote: 
> > > On Fri, Jan 17, 2014 at 02:27:41PM -0500, Tom Horsley wrote:
> > > > On Fri, 17 Jan 2014 20:14:29 +0100
> > > > Suvayu Ali wrote:
> > > > 
> > > > > Can someone point me in the right direction?
> > > > 
> > > > Get a better router that supports DNS as well as DHCP?
> > > 
> > > My landlord owns the router.  I think the easiest setup for me would be
> > > if the router could assign a predetermined ip for a given mac_address.
> > > I can't setup my computers to use fixed ip as they are portables and
> > > leave the house.  I use fixed ip outside the DHCP range for my desktop.
> > 
> > I think that's actually no longer a serious issue, as NetworkManager now
> > supports profiles.  In the Network settings app, you can select settings
> > for each WiFi access point and you can create profiles for the wired
> > interface as well.  Profiles can be associated with IPV4 and IPV6
> > settings (including whether you DHCP or assign a permanent IP), security
> > settings, and firewall zones, so you can have a permissive firewall at
> > home, open ports for needed services at work, and have a tightly closed
> > firewall for public access points.
> 
> I had forgotten about this possibility.  This works nicely for wireless
> using SSIDs, is it possible to do this for wired connections?  After all
> they do not have something similar to SSID to serve as identifier.
> 

Open the Network Settings app, select the Wired connection, and click
Add Profile.  The Identity setting allows you to give the profile a
custom name and select a Firewall Zone (among other settings).  The IPv4
and IPv6 settings let you select DHCP or Manual, select a DNS server and
set routes.

Firewall zones can be customized in the Firewall Settings app.

I haven't actually used hardwired profiles, so I'm not sure how you
select the active one for a connection.  That may be a manual process.

-- 
Matthew Saltzman
Clemson University Math Sciences
mjs AT clemson DOT edu