Re: Remote SSH

2008-07-05 Thread Simon Ives
I think that I may have figured out why my SSH over the 'net isn't
working: I've been testing it behind my LAN.  I just downloaded the
Router Manual and it says (relating to port forwarding):

"Please be aware that from inside your LAN you will not be able to
access your server using its public IP address or name. On your LAN you
will need to use its local IP address instead"

I'll have to have a try from another location when I get the chance.

-- 
Simon Ives

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Re: ubuntu-au Digest, Vol 29, Issue 12

2008-07-05 Thread Gregory Storer
On Sat, 2008-07-05 at 21:55 +1000, Simon Ives wrote:
> > ?I access my server remotely with this:
> > 
> > ssh -p 2232 [EMAIL PROTECTED]
> > 
> > Where 2232 is the port number that is then forwarded to 22.
> > 
> 
> Is this a port number on your router?

Yes - I use port forwarding to then send it on to the server to port 22.

g.



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Re: ubuntu-au Digest, Vol 29, Issue 12

2008-07-05 Thread Simon Ives
> ?I access my server remotely with this:
> 
> ssh -p 2232 [EMAIL PROTECTED]
> 
> Where 2232 is the port number that is then forwarded to 22.
> 

Is this a port number on your router?

> My first guess is the 124.171.***.*** IP is assigned to your router, and 
> your file server has a different (internal?) address.
> 
> In which case, you need to port forward from your router's port 22 to 
> your file server's port 22...

124.171.***.*** is the I.P address assigned to my general connection so
yes, that address reaches the router first.  Within the router config
I've exposed my file server's internal I.P address in what the router
calls the 'demilitarised zone'.  Basically, any ports I open in the
router get forwarded to the file server.  I've got port 22 open.

I'm assuming that the file server is sufficiently exposed as Shields Up
report it's host-name and that port 22 is open.

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Re: Remote SSH

2008-07-05 Thread IKT
It would also be in your best interest to (at least) change the default port
to something else besides port 22,

http://www.securityfocus.com/infocus/1876

"Malicious SSH login attempts have been appearing in some administrators'
logs for several years."

"Then we examined who attacked the honeypot and what strategy these
attackers used. There were 23 unique IP addresses involved in the login
attempts. The attackers were more or less persistent in their attempts to
gain access to the system, as shown in Table 3. Ten of the sources tried
less than 50 combinations and then gave up. Five tried harder with
approximately 170 login attempts, and eight tried even harder with up to
1450 login attempts."

Changing the default SSH port from 22 to something else has seen the number
of bots attempting to get in from several per day, to die down to zero.

- IKT



On Sat, Jul 5, 2008 at 4:16 PM, Simon Ives <[EMAIL PROTECTED]> wrote:

> Can someone please help with the syntax to remotely SSH to my Ubuntu
> file server.  I've opened the server's I.P address and port 22 in the
> router and verified that this has occurred with Shields Up (it reported
> the server's host-name and that port 22 is open).  I'm just unsure of
> how to SSH from a remote location.
>
> The syntax I've attempted is:
>
> ssh 124.171.***.*** (which is my public I.P address provided by my ISP)
>
> and
>
> ssh [EMAIL PROTECTED]
>
> Both return the following error: "ssh_exchange_identification:
> Connection closed by remote host"
>
> I can SSH over the local network with no problems.
>
> Thanks.
>
> --
> Simon Ives
>
> E - [EMAIL PROTECTED]
> M - [EMAIL PROTECTED]
> W - www.simonives.info
>
> Please consider the environment before printing this email or any
> attachments.
>
>
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Re: Linux Servers for Infrastructure

2008-07-05 Thread Daniel Mons
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Slawek Drabot wrote:
| I'm trying to PXE boot a thin client that has a Vortex86SX processor
(no math co processor or fpu)
|
| Error message:
| This kernel requires the following features not present on the CPU: 0:0
| Unable to boot - please use a kernel appropriate for your CPU.

Which kernel are you using?  The "linux-image-generic" kernel supplied
with Ubuntu requires a 686 equivalent processor (first appearing with
the "Pentium Pro" CPUs).

You might need to switch to the "linux-image-386" for support on your
processor.

- -Dan
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=OmQe
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Re: Wireless USB Adaptor

2008-07-05 Thread Matthew Vermeulen
On Sat, Jul 5, 2008 at 3:28 PM, Matthew Rossi <
[EMAIL PROTECTED]> wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> If I remember correctly i have a netgear WG111v2 on my old computer
> that the family uses (my xp computer that formerly ran ubuntu).
> I tried getting the adapter working in feisty and gutsy to no
> avail.  How did you get your going Matt?
>

All I had to do was plug it in and recent versions of ubuntu (definitely
gutsy and hardy) just pick it up and 20 seconds later I'm connected - that's
without changing any of the default config afaik, and without touching
anything. Must be one of the good ones :) :S. Below is the output of lsusb
-vv :

Bus 002 Device 013: ID 0846:4240 NetGear, Inc. WG111 WiFi (v2)
Device Descriptor:
  bLength18
  bDescriptorType 1
  bcdUSB   2.00
  bDeviceClass0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize064
  idVendor   0x0846 NetGear, Inc.
  idProduct  0x4240 WG111 WiFi (v2)
  bcdDevice   10.40
  iManufacturer   1
  iProduct2
  iSerial 3
  bNumConfigurations  1
  Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength   53
bNumInterfaces  1
bConfigurationValue 1
iConfiguration  0
bmAttributes 0x80
  (Bus Powered)
MaxPower  500mA
Interface Descriptor:
  bLength 9
  bDescriptorType 4
  bInterfaceNumber0
  bAlternateSetting   0
  bNumEndpoints   5
  bInterfaceClass   255 Vendor Specific Class
  bInterfaceSubClass255 Vendor Specific Subclass
  bInterfaceProtocol255 Vendor Specific Protocol
  iInterface  0
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81  EP 1 IN
bmAttributes2
  Transfer TypeBulk
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0200  1x 512 bytes
bInterval   0
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01  EP 1 OUT
bmAttributes2
  Transfer TypeBulk
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0200  1x 512 bytes
bInterval   0
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82  EP 2 IN
bmAttributes2
  Transfer TypeBulk
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0200  1x 512 bytes
bInterval   0
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02  EP 2 OUT
bmAttributes2
  Transfer TypeBulk
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0200  1x 512 bytes
bInterval   0
  Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83  EP 3 IN
bmAttributes3
  Transfer TypeInterrupt
  Synch Type   None
  Usage Type   Data
wMaxPacketSize 0x0040  1x 64 bytes
bInterval   1

Cheers,

Matt

>
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>>
>
>
> --
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>
> I am for Macs, and the open source scene, are you?
>
> The Penguin Central Podcast - http://penguincentral.unixpod.com
>
> Everything you can imagine is real.
> Pablo Picasso
> Spanish Cubist painter (1881 - 1973)
>
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>
>


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Re: Wireless USB Adaptor

2008-07-05 Thread Matthew Rossi
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

If I remember correctly i have a netgear WG111v2 on my old computer
that the family uses (my xp computer that formerly ran ubuntu).
I tried getting the adapter working in feisty and gutsy to no
avail.  How did you get your going Matt?


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Version: GnuPG v1.4.8 (Darwin)
Comment: http://getfiregpg.org

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SUgAni5qFYu1dOEYU55jHnjUiEOmVdy8
=fZpc
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On Sat, Jul 5, 2008 at 4:30 PM, Matthew Vermeulen <[EMAIL PROTECTED]>
wrote:

>
>
> On Sat, Jul 5, 2008 at 11:25 AM, Simon Ives <[EMAIL PROTECTED]> wrote:
>
>> Recently the Broadcom chip-set based wireless card in my notebook
>> decided to die.  One of the circuits actually fried somehow!  Anyhow,
>> has anyone had any success with Wireless USB adaptors under Ubuntu?  At
>> home my wireless router is a D-Link DSL-G604T capable of both 802.11b
>> and 802.11g.  I'm not sure of what wireless technology is in use at Uni
>> (Uni of QLD and ANU) though.  I'd need an adaptor capable of connecting
>> to both networks.  I'm currently using LAN at home but I'll need some
>> way of accessing the wireless at Uni after the holidays.
>>
>> If this helps at all, I have a netgear wg111 (
> http://www.netgear.com/Products/Adapters/GWirelessAdapters/WG111.aspx) usb
> wireless adaptor which works out of the box on my desktop (plug it in and 20
> seconds later it's all set up). However, there may be some other versions of
> this (https://help.ubuntu.com/community/WifiDocs/Device/NetgearWG111) so
> that may be something to consider.
>
> Cheers,
>
> Matt
>
> --
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> http://www.matthewv.id.au/
> MatthewV @ irc.freenode.net
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>


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I am for Macs, and the open source scene, are you?

The Penguin Central Podcast - http://penguincentral.unixpod.com

Everything you can imagine is real.
Pablo Picasso
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Re: Remote SSH

2008-07-05 Thread Daniel Morrison
Simon Ives wrote:
> Can someone please help with the syntax to remotely SSH to my Ubuntu
> file server.  I've opened the server's I.P address and port 22 in the
> router and verified that this has occurred with Shields Up (it reported
> the server's host-name and that port 22 is open).  I'm just unsure of
> how to SSH from a remote location.
>
>   

My first guess is the 124.171.***.*** IP is assigned to your router, and 
your file server has a different (internal?) address.

In which case, you need to port forward from your router's port 22 to 
your file server's port 22...

cheers

danm


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Re: Remote SSH

2008-07-05 Thread Gregory Storer
I access my server remotely with this:

ssh -p 2232 [EMAIL PROTECTED]

Where 2232 is the port number that is then forwarded to 22.

g.

On Sat, 2008-07-05 at 16:46 +1000, Simon Ives wrote:
> Can someone please help with the syntax to remotely SSH to my Ubuntu
> file server.  I've opened the server's I.P address and port 22 in the
> router and verified that this has occurred with Shields Up (it reported
> the server's host-name and that port 22 is open).  I'm just unsure of
> how to SSH from a remote location.
> 
> The syntax I've attempted is:
> 
> ssh 124.171.***.*** (which is my public I.P address provided by my ISP)
> 
> and
> 
> ssh [EMAIL PROTECTED]
> 
> Both return the following error: "ssh_exchange_identification:
> Connection closed by remote host"
> 
> I can SSH over the local network with no problems.
> 
> Thanks.
> 
> -- 
> Simon Ives
> 
> E - [EMAIL PROTECTED]
> M - [EMAIL PROTECTED]
> W - www.simonives.info
> 
> Please consider the environment before printing this email or any
> attachments.
> 
> 
-- 
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0417 338 632
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Re: Linux Servers for Infrastructure

2008-07-05 Thread Slawek Drabot
I'm trying to PXE boot a thin client that has a Vortex86SX processor (no math 
co processor or fpu)

Error message:
This kernel requires the following features not present on the CPU: 0:0
Unable to boot - please use a kernel appropriate for your CPU.

any insights into the error code "0:0"?

I'm guessing it has to do with math emulation and fpu emulation being required 
in the PXE image. Been looking for instructions on how to build a bootable 
image for PXE (onto an LTSP server) where I can enable both emulations but 
nothing simple enough for me to understand thus far.

Any help appreciated.


"You can just use cron-apt and your own apt-repo to deploy applications and
manage updates, like Microsofts SMS but better.

Using PXE and a customised image you could network boot and install all the
machines as well, same as MS's RIS or WDS."


  

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Remote SSH

2008-07-05 Thread Simon Ives
Can someone please help with the syntax to remotely SSH to my Ubuntu
file server.  I've opened the server's I.P address and port 22 in the
router and verified that this has occurred with Shields Up (it reported
the server's host-name and that port 22 is open).  I'm just unsure of
how to SSH from a remote location.

The syntax I've attempted is:

ssh 124.171.***.*** (which is my public I.P address provided by my ISP)

and

ssh [EMAIL PROTECTED]

Both return the following error: "ssh_exchange_identification:
Connection closed by remote host"

I can SSH over the local network with no problems.

Thanks.

-- 
Simon Ives

E - [EMAIL PROTECTED]
M - [EMAIL PROTECTED]
W - www.simonives.info

Please consider the environment before printing this email or any
attachments.


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