[gentoo-user] Problems with domainname

[gentoo-user] Problems with domainname

[Felipe Ribeiro]

Hi,

I've already set my domain name (pixelsolutions.com.br) on /etc/hosts,
/etc/conf.d/domainname and /etc/resolv.conf, but i still get the:

This is mustang.(none) (Linux x86_64 2.6.15-gentoo-r7)

when i start the system.

What should i do?

Regards,

Felipe

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Re: [gentoo-user] Problems with domainname

[scwang]

On Sun, Mar 19, 2006 at 01:16:51AM -0300, Felipe Ribeiro wrote:
> Hi,
> 
> I've already set my domain name (pixelsolutions.com.br) on /etc/hosts,
> /etc/conf.d/domainname and /etc/resolv.conf, but i still get the:
> 
> This is mustang.(none) (Linux x86_64 2.6.15-gentoo-r7)
> 
> when i start the system.
> 
> What should i do?
> 
> Regards,
> 
> Felipe
> 
> -- 
> gentoo-user@gentoo.org mailing list

In order to get a proper FQDN, you need to set up three files:
/etc/hosts, /etc/conf.d/hostanme, /etc/conf.d/domainname.

I also have the same problems as you in past, and one day I found
that the most tricky thing was that you must give a seperate line 
for your FQDN name in /etc/hosts!

This is a part of my /etc/hosts file:

127.0.0.1       localhost
127.0.0.1       lp.lcst.com lp

Good Luck!

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Wang ShaoChun(王绍春) <scwang@ios.ac.cn>
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Re: [gentoo-user] Problems with domainname

[JimD]

scwang@ios.ac.cn wrote:
> 
> In order to get a proper FQDN, you need to set up three files:
> /etc/hosts, /etc/conf.d/hostanme, /etc/conf.d/domainname.
> 
> I also have the same problems as you in past, and one day I found
> that the most tricky thing was that you must give a seperate line
> for your FQDN name in /etc/hosts!
> 
> This is a part of my /etc/hosts file:
> 
> 127.0.0.1       localhost
> 127.0.0.1       lp.lcst.com lp

You can combine it all in one line like so:

127.0.0.1 localhost.localdomain localhost


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Re: [gentoo-user] Problems with domainname

[Felipe Ribeiro]

SOLVED!

Thanks!

On 3/19/06, JimD <Jim@keeliegirl.dyndns.org> wrote:
> scwang@ios.ac.cn wrote:
> >
> > In order to get a proper FQDN, you need to set up three files:
> > /etc/hosts, /etc/conf.d/hostanme, /etc/conf.d/domainname.
> >
> > I also have the same problems as you in past, and one day I found
> > that the most tricky thing was that you must give a seperate line
> > for your FQDN name in /etc/hosts!
> >
> > This is a part of my /etc/hosts file:
> >
> > 127.0.0.1       localhost
> > 127.0.0.1       lp.lcst.com lp
>
> You can combine it all in one line like so:
>
> 127.0.0.1 localhost.localdomain localhost
>
>
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>
>

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Re: [gentoo-user] Problems with domainname

[THUFIR HAWAT]

On 3/19/06, JimD <Jim@keeliegirl.dyndns.org> wrote:
> scwang@ios.ac.cn wrote:
> >
> > In order to get a proper FQDN, you need to set up three files:
> > /etc/hosts, /etc/conf.d/hostanme, /etc/conf.d/domainname.
> >
> > I also have the same problems as you in past, and one day I found
> > that the most tricky thing was that you must give a seperate line
> > for your FQDN name in /etc/hosts!
> >
> > This is a part of my /etc/hosts file:
> >
> > 127.0.0.1       localhost
> > 127.0.0.1       lp.lcst.com lp
>
> You can combine it all in one line like so:
>
> 127.0.0.1 localhost.localdomain localhost
>
>
> --
> gentoo-user@gentoo.org mailing list



Can I jump in here with my situation?

thufir@localhost ~ $
thufir@localhost ~ $ cat /etc/hosts -n
     1  # /etc/hosts:  This file describes a number of hostname-to-address
     2  #              mappings for the TCP/IP subsystem.  It is mostly
     3  #              used at boot time, when no name servers are running.
     4  #              On small systems, this file can be used instead of a
     5  #              "named" name server.  Just add the names, addresses
     6  #              and any aliases to this file...
     7  # $Header: /home/cvsroot/gentoo-src/rc-scripts/etc/hosts,v 1.8
2003/08/04 20:12:25 azarah Exp $
     8  #
     9
    10  #127.0.0.1      localhost
    11  127.0.0.1       localhost.localdomain   localhost
    12  192.168.0.2     gravity.twi-31o2.org gravity
thufir@localhost ~ $ cat /home/thufir/hosts -n
     1  # /etc/hosts:  This file describes a number of hostname-to-address
     2  #              mappings for the TCP/IP subsystem.  It is mostly
     3  #              used at boot time, when no name servers are running.
     4  #              On small systems, this file can be used instead of a
     5  #              "named" name server.  Just add the names, addresses
     6  #              and any aliases to this file...
     7  # $Header: /home/cvsroot/gentoo-src/rc-scripts/etc/hosts,v 1.8
2003/08/04 20:12:25 azarah Exp $
     8  #
     9
    10  #127.0.0.1      localhost
    11  127.0.0.1       hawat.thufir.gmail.com  arrakis
    12  192.168.0.2     gravity.twi-31o2.org gravity
thufir@localhost ~ $ date
Fri Mar 24 20:15:55 GMT 2006
thufir@localhost ~ $



So, I just replace /etc/hosts with /home/thufir/hosts and I'll have a
computer named arrakis with a FQDN such that leafnode will be
satisfied and I won't create a problem?  I just want to satisfy
leafnode.


-Thufir

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Re: [gentoo-user] Problems with domainname

[maxim wexler]

>     12  192.168.0.2     gravity.twi-31o2.org gravity
> thufir@localhost ~ $ date
> Fri Mar 24 20:15:55 GMT 2006
> thufir@localhost ~ $
> 

Sorry to intrude but I can't get a nibble on my post
"ftp connection refused".

Just so happens I found the above "gravity" line in my
hosts file after doing an emerge of ftp. But ftp will
not communicate across a crossover, pc-to-pc, LAN,
even though the two NICs can ping each other and
iftraf indicates a flurry of activity for about 1/2 a
second at the start of an ftp session on the host pc.

FWIW, I found that particular line added automagically
to the /etc/hosts file on a fresh install using the
2.6.15 kernel after doing emerge ftp IIRC but not on
the other machine's hosts file. The other pc uses the
2.6.12 kernel but the ftp client is identical for
both. So I just added the line manually to the /hosts
file on that one. 

So both PCs have that line in their /hosts file now.
So I oughta be able to ftp gravity from one or the
other and get connected, right? But it doesn't work 
:^(

Does ftp work for you?

What am I missing?

-Maxim 



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Re: [gentoo-user] Problems with domainname

[Walter Dnes]

On Sat, Mar 25, 2006 at 02:11:01PM -0800, maxim wexler wrote

> So both PCs have that line in their /hosts file now.
> So I oughta be able to ftp gravity from one or the
> other and get connected, right? But it doesn't work 
> :^(
> 
> Does ftp work for you?

  There are several places where things can go wrong.  Here are some
boobytraps that I've found out about "the hard way".  Put it this
way... doing things right comes from experience... "experience" comes
from doing things wrong<g>.

  - are you sure you're running ftpd on the target machine?

  - check the logs on both machines to ensure that neither one is
    rejecting packets from the other by iptables rules

  - post the output of "grep -v ^# /etc/hosts" and "ifconfig eth0" and
    "route -n" from both machines

  - I've run into some "paranoid" ftpd daemons that need
    /etc/hosts.allow and /etc/hosts.deny to be set up with proper
    entries *EVEN IF YOU'RE NOT RUNNING INETD*.  Apparently, that ftp
    daemon reads hosts.allow and hosts.deny follows their rules.  Try
    "emerge -pv" on your ftp program, and check the flags.

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My musings on technology and security at http://tech_sec.blog.ca
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Re: [gentoo-user] Problems with domainname

[maxim wexler]

--- Walter Dnes <waltdnes@waltdnes.org> wrote:

> On Sat, Mar 25, 2006 at 02:11:01PM -0800, maxim
> wexler wrote
> 
> > So both PCs have that line in their /hosts file
> now.
> > So I oughta be able to ftp gravity from one or the
> > other and get connected, right? But it doesn't
> work 
> > :^(
> > 
> > Does ftp work for you?
> 
>   There are several places where things can go
> wrong.  Here are some
> boobytraps that I've found out about "the hard way".
>  Put it this
> way... doing things right comes from experience...
> "experience" comes
> from doing things wrong<g>.
> 
>   - are you sure you're running ftpd on the target
> machine?

Well top and ps list ftp without the  'd' on the end
as running. And ftp starts with the ftp> prompt. If
that's what you mean.

> 
>   - check the logs on both machines to ensure that
> neither one is
>     rejecting packets from the other by iptables
> rules

Nothing in the logs. Maybe I need a LAN specific
logger? All I got is syslog-ng on both machines.

There is this, which is identical on both machines
with different numbers of course:

sarawak heathen # tcpdump -v
tcpdump: listening on eth0, link-type EN10MB
(Ethernet), capture size 96 bytes
19:44:10.942027 arp who-has 192.168.0.3 tell
gravity.twi-31o2.org
19:44:12.515686 arp reply 192.168.0.3 is-at
00:e0:18:99:88:77 (oui Unknown)
19:44:10.942092 IP (tos 0x0, ttl  64, id 38827, offset
0, flags [DF], proto: TCP (6), length: 60)
gravity.twi-31o2.org.53486 > 192.168.0.3.ftp: S, cksum
0xa947 (correct), 3719721500:3719721500(0) win 5840
<mss 1460,sackOK,timestamp 648631 0,nop,wscale 2>
19:44:10.942110 IP (tos 0x0, ttl  64, id 127, offset
0, flags [DF], proto: TCP (6), length: 40)
192.168.0.3.ftp > gravity.twi-31o2.org.53486: R, cksum
0x0da3 (correct), 0:0(0) ack 3719721501 win 0
19:44:15.940760 arp who-has gravity.twi-31o2.org tell
192.168.0.3
19:44:15.940877 arp reply gravity.twi-31o2.org is-at
00:04:75:8a:cf:84 (oui Unknown)

You'll notice that last number *is* the hardware
address on the remote machine(see below). So there has
been some sort of communication between the two but
then it shuts off.

> 
>   - post the output of "grep -v ^# /etc/hosts" and
> "ifconfig eth0" and
>     "route -n" from both machines

------------K6-2.6.15----------------------

lumberton ~ # ifconfig eth0
eth0      Link encap:Ethernet  HWaddr
00:04:75:8A:CF:84
          inet addr:192.168.0.2  Bcast:192.168.0.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:10 errors:0 dropped:0 overruns:0
frame:0
          TX packets:11 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:614 (614.0 b)  TX bytes:702 (702.0
b)
          Interrupt:9 Base address:0x4f80

lumberton ~ # route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags
Metric Ref    Use Iface
192.168.0.0     0.0.0.0         255.255.255.0   U    
0      0        0 eth0
127.0.0.0       127.0.0.1       255.0.0.0       UG   
0      0        0 lo

lumberton ~ # grep -v ^# /etc/hosts

127.0.0.1       localhost
192.168.0.3     gravity.twi-31o2.org gravity

lumberton ~ # emerge -pv ftp

These are the packages that I would merge, in order:

Calculating dependencies ...done!
[ebuild   R   ] net-ftp/ftp-0.17-r6  +ipv6 +ssl 0 kB

Total size of downloads: 0 kB

----------------Sempron-2.6.12------------------------


sarawak heathen # ifconfig eth0
eth0      Link encap:Ethernet  HWaddr
00:E0:18:99:88:77  
          inet addr:192.168.0.3  Bcast:192.168.0.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500 
Metric:1
          RX packets:19 errors:0 dropped:0 overruns:0
frame:0
          TX packets:19 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1182 (1.1 Kb)  TX bytes:994 (994.0
b)
          Interrupt:11 Base address:0x2000 
sarawak heathen # route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags
Metric Ref    Use Iface
64.228.98.241   0.0.0.0         255.255.255.255 UH   
0      0        0 ppp0
192.168.0.0     0.0.0.0         255.255.255.0   U    
0      0        0 eth0
127.0.0.0       127.0.0.1       255.0.0.0       UG   
0      0        0 lo
0.0.0.0         64.228.98.241   0.0.0.0         UG   
0      0        0 ppp0

sarawak heathen # grep -v ^# /etc/hosts

127.0.0.1       sarawak localhost
192.168.0.2     gravity.twi-31o2.org gravity
::1 ip6-localhost ip6-loopback #hmm, 
fe00::0 ip6-localnet           #more
ff00::0 ip6-mcastprefix        #stuff
ff02::1 ip6-allnodes           #here
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

sarawak heathen # emerge -pv ftp

These are the packages that I would merge, in order:

Calculating dependencies ...done!
[ebuild   R   ] net-ftp/ftp-0.17-r6  +ipv6 +ssl 0 kB 

Total size of downloads: 0 kB



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Re: [gentoo-user] Problems with domainname

[Ryan Tandy]

maxim wexler wrote:
> --- Walter Dnes <waltdnes@waltdnes.org> wrote:
>   
>> m doing things wrong<g>.
>>
>>   - are you sure you're running ftpd on the target
>> machine?
>>     
>
> Well top and ps list ftp without the  'd' on the end
> as running. And ftp starts with the ftp> prompt. If
> that's what you mean.
>   
No, the ftp> prompt is for the FTP *client*.  It needs a server to 
connect to - the system doesn't know how to answer FTP requests just 
like that.  ftpd, the FTP server, needs to be running on one of the 
machines, while you connect to it from the other one with ftp.  If ftpd 
isn't running on the target machine, then of course your connections 
will be refused - there's nothing running that knows how to accept them.

I'm not familiar with Gentoo's ftpd setup, but try "/etc/init.d/ftpd 
start" on the server.
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Re: [gentoo-user] Problems with domainname

[Walter Dnes]

On Sat, Mar 25, 2006 at 06:57:10PM -0800, maxim wexler wrote

> ----------------Sempron-2.6.12------------------------
> 
> sarawak heathen # route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> 64.228.98.241   0.0.0.0         255.255.255.255 UH 0      0        0 ppp0
> 192.168.0.0     0.0.0.0         255.255.255.0   U 0      0        0 eth0
> 127.0.0.0       127.0.0.1       255.0.0.0       UG 0      0        0 lo
> 0.0.0.0         64.228.98.241   0.0.0.0         UG 0      0        0 ppp0

  Ouch; you're *NOT* going to connect the two machines while logged on
via dialup, at least not without some fancy "route" statements.  If
anybody can give an example of how to do it, I'd appreciate seeing it.

> ------------K6-2.6.15----------------------
> 
> 
> lumberton ~ # route -n
> Kernel IP routing table
> Destination     Gateway       Genmask         Flags Metric Ref  Use Iface
> 192.168.0.0     0.0.0.0       255.255.255.0   U     0      0      0 eth0
> 127.0.0.0       127.0.0.1     255.0.0.0       UG    0      0      0 lo
>

  Did you miss the last line when cutting+pasting or or was that really
all?  Try "grep gateway /etc/conf.d/net" on your machines.  Here's what I
get...

# For setting the default gateway
#gateway="eth0/192.168.0.1"
gateway="eth0/192.168.123.254"

  First, make sure that you are *NOT* connected via dialup.

  On the K6, insert into /etc/conf.d/net the line
gateway="eth0/192.168.0.2"
and execute /etc/init.d/net.eth0 restart

  On the Sempron, insert into /etc/conf.d/net the line
gateway="eth0/192.168.0.3"
and execute /etc/init.d/net.eth0 restart

  You should now be able to talk between the two machines... but dialup
won't work.  You may connect, but not get anywhere.  Here's what you
have to do on the Sempron...

  - *BEFORE* dialing up "ifconfig eth0 down"; you can now dial up

  - *AFTER* logging off dialup, "/etc/init.d/net.eth0 restart"; you can
    now talk between the two computers

  If someone has a magic configuration that allows eth0 and ppp0 to
co-exist, and function, simultaneously, please post it.

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Re: [gentoo-user] Problems with domainname

[maxim wexler]

--- Ryan Tandy <tarpman@gmail.com> wrote:

> maxim wexler wrote:
> > --- Walter Dnes <waltdnes@waltdnes.org> wrote:
> >   
> >> m doing things wrong<g>.
> >>
> >>   - are you sure you're running ftpd on the
> target
> >> machine?
> >>     
> >
> > Well top and ps list ftp without the  'd' on the
> end
> > as running. And ftp starts with the ftp> prompt.
> If
> > that's what you mean.
> >   
> No, the ftp> prompt is for the FTP *client*.  It
> needs a server to 
> connect to - the system doesn't know how to answer
> FTP requests just 
> like that.  ftpd, the FTP server, needs to be
> running on one of the 
> machines

aiieee!! It's not even emerged yet! This must have
seemed so obvious to everybody they couldn't be
bothered to reply. 

Well, thanks for the hand up. Hopefully this will put
an end to the issue.



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Re: [gentoo-user] Problems with domainname

[maxim wexler]

 
>   Ouch; you're *NOT* going to connect the two
> machines while logged on
> via dialup, at least not without some fancy "route"
> statements.  If
> anybody can give an example of how to do it, I'd
> appreciate seeing it.
> 
> > ------------K6-2.6.15----------------------
> > 
> > 
> > lumberton ~ # route -n
> > Kernel IP routing table
> > Destination     Gateway       Genmask        
> Flags Metric Ref  Use Iface
> > 192.168.0.0     0.0.0.0       255.255.255.0   U   
>  0      0      0 eth0
> > 127.0.0.0       127.0.0.1     255.0.0.0       UG  
>  0      0      0 lo
> >
> 
>   Did you miss the last line when cutting+pasting or
> or was that really
> all?  Try "grep gateway /etc/conf.d/net" on your
> machines.  Here's what I
> get...
> 
But, you never asked about ../net in your last post.

> # For setting the default gateway
> #gateway="eth0/192.168.0.1"
> gateway="eth0/192.168.123.254"
> 
>   First, make sure that you are *NOT* connected via
> dialup.
> 
>   On the K6, insert into /etc/conf.d/net the line
> gateway="eth0/192.168.0.2"
> and execute /etc/init.d/net.eth0 restart
> 
>   On the Sempron, insert into /etc/conf.d/net the
> line
> gateway="eth0/192.168.0.3"
> and execute /etc/init.d/net.eth0 restart
> 
>   You should now be able to talk between the two
> machines... but dialup
> won't work.  You may connect, but not get anywhere. 
> Here's what you
> have to do on the Sempron...
> 
>   - *BEFORE* dialing up "ifconfig eth0 down"; you
> can now dial up
> 
>   - *AFTER* logging off dialup,
> "/etc/init.d/net.eth0 restart"; you can
>     now talk between the two computers

Well, I did all that and still no joy. The part about
not be able to connect to the net was true, though.

I thought emerging ftpd would be my salvation but that
doesn't work either. How do you start the bleeping
thing. I  even ran /usr/sbin/ftpd; it didn't gag but
it didn't start either. And there's supposed to be a
whole whack of files under /etc/. Nope. I found
xinet.conf but don't have a clue on how to edit it.

Then there's this. That 'disable' looks ominous.
Should that be set to 'no'? What about 'protocol'?
What should go there?

heathen@sarawak ~ $ cat   /etc/xinetd.d/ftp
# default: off
# $Header:
/var/cvsroot/gentoo-x86/net-ftp/ftpd/files/ftp.xinetd,v
1.2 2004/08/14 13:41:20 swegener Exp $
# description: The netkit ftp daemon with optional SSL
support.

service ftp
{
        socket_type             = stream
        protocol                = tcp
        wait                    = no
        user                    = root
        server                  = /usr/bin/ftpd
        disable                 = yes
}


> 
>   If someone has a magic configuration that allows
> eth0 and ppp0 to
> co-exist, and function, simultaneously, please post
> it.

Amen.

> 
> -- 
> Walter Dnes <waltdnes@waltdnes.org> In linux
> /sbin/init is Job #1
> My musings on technology and security at
> http://tech_sec.blog.ca
> -- 
> gentoo-user@gentoo.org mailing list
> 
> 


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Re: [gentoo-user] Problems with domainname

[Walter Dnes]

On Sun, Mar 26, 2006 at 02:05:13PM -0800, maxim wexler wrote

> I thought emerging ftpd would be my salvation but that
> doesn't work either. How do you start the bleeping
> thing. I  even ran /usr/sbin/ftpd; it didn't gag but
> it didn't start either.

  "man ftpd" (or whatever the package is called) for instructions on how
to start it in daemon mode.  A WAG from me is "/etc/init.d ftpd start",
and remember to use etc-update to put it in your default runlevel.

  That's about all I remember about ftpd, because  I've been using ssh
for a long time.  I strongly recommend switching to ssh.  ftp has
security issues for all but anonymous ftp.  This is due to sending
passwords in clear text.  ssh has both "scp" and "sftp", either of which
will push/pull files.  *AND* ssh allows encrypted tunneling *AND* a
secure "telnet" shell equivalant.  It's better all around.

-- 
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My musings on technology and security at http://tech_sec.blog.ca
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Re: [gentoo-user] Problems with domainname

[maxim wexler]

--- Walter Dnes <waltdnes@waltdnes.org> wrote:

> On Sun, Mar 26, 2006 at 02:05:13PM -0800, maxim
> wexler wrote
> 
> > I thought emerging ftpd would be my salvation but
> that
> > doesn't work either. How do you start the bleeping
> > thing. I  even ran /usr/sbin/ftpd; it didn't gag
> but
> > it didn't start either.
> 
>   "man ftpd" (or whatever the package is called) for
> instructions on how
> to start it in daemon mode. 

Yeah, it says ftp -D, but it doesn't work. Doesn't
give an error or log any sort of message at all.

 A WAG from me is
> "/etc/init.d ftpd start",
> and remember to use etc-update to put it in your
> default runlevel.

no such file!

> 
>   That's about all I remember about ftpd, because 
> I've been using ssh
> for a long time.  I strongly recommend switching to
> ssh.  ftp has
> security issues for all but anonymous ftp.  This is
> due to sending
> passwords in clear text.  ssh has both "scp" and
> "sftp", either of which
> will push/pull files.  *AND* ssh allows encrypted
> tunneling *AND* a
> secure "telnet" shell equivalant.  It's better all
> around.

Okay, I'll try it. Can you give me some hints on how
to edit the config file keeping in mind it's only for
a crossover LAN and security is _not_ and issue? It's
to spare me the ordeal of downloading to one machine
and then having to burn to a CD just so I can put it
on another machine 5 feet away.

> 
> -- 
> Walter Dnes <waltdnes@waltdnes.org> In linux
> /sbin/init is Job #1
> My musings on technology and security at
> http://tech_sec.blog.ca
> -- 
> gentoo-user@gentoo.org mailing list
> 
> 


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Re: [gentoo-user] Problems with domainname

[Walter Dnes]

On Mon, Mar 27, 2006 at 07:04:44PM -0800, maxim wexler wrote

> Okay, I'll try it. Can you give me some hints on how
> to edit the config file keeping in mind it's only for
> a crossover LAN and security is _not_ and issue? It's
> to spare me the ordeal of downloading to one machine
> and then having to burn to a CD just so I can put it
> on another machine 5 feet away.

  Step 1 is to make sure that you can traceroute or ping from one
machine to the other.  Once you know that you're connected, you can
"emerge openssh".  You can run with /etc/ssh/sshd_config left at default
values.  But you'll want to make a few changes after that.  The reasons
for using keys rather than passwords are security and convenience.  A
1024-bit key is a helluva lot harder to break than brute-forcing userID
password combos.  And you won't have to enter your password each time
you connect to the host.  This allows you to use scp in scripts and even
in cron jobs.  Make sure that sshd is running on the target machine.
"/etc/init.d/sshd start" starts it.  Put it into default with etc-update
to have it come up at bootup.

  Some notes...
  - 1st time you try to connect to a host you'll be asked to confirm.
    If you say yes, the host will be listed in ~/.ssh/known_hosts.  If
    that host ever changes IP address, ssh will scream blue murder when
    you try to connect to it.

  - to start a telnet-like SecureSHell (hence the name "ssh") session
    you connect like one of the following example lines...
    ssh user_id@machine_name
    ssh user_id@192.168.0.2

  - to copy file(s) from target machine to you...
    scp user_id@machine_name:filename .
    scp user_id@192.168.0.2:photos/*.jpeg myphotos/

  - to copy entire directory from target machine to you...
    scp -r user_id@machine_name:photos .
    scp -r user_id@192.168.0.2:photos myphotos/

  - to copy from your machine to the target machine, the examples look
    like so...
    scp user_id@machine_name:filename .
    scp user_id@192.168.0.2:photos/*.jpeg myphotos/
    scp -r photos user_id@machine_name:.
    scp -r myphotos user_id@192.168.0.2:photos/
    

-- 
Walter Dnes <waltdnes@waltdnes.org> In linux /sbin/init is Job #1
My musings on technology and security at http://tech_sec.blog.ca
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