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Old 10-22-2011, 09:31 AM
Abu Attar Musharih
 
Default Unable to ssh nodes with global IP

Dear List,

My internet connection is via mobile broadband. The ifconfig lists
the ppp0 with IP address,


ppp0 Link encap:Point-to-Point Protocol
inet addr:120.165.xx.xxx P-t-P:10.64.64.64 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:5239 errors:0 dropped:0 overruns:0 frame:0
TX packets:6371 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:3867747 (3.6 MiB) TX bytes:1020544 (996.6 KiB)

I tried to remote login (using ssh) to this IP address from another
machine but failed.

The following message appears,

ssh: connect to host 120.166.xx.xxx port 22: Connection timed out


Editing /etc/sysconfig/iptables and add --dport 22 -j Accept does not help.

Could any one please provide some suggestions?

Thanks in advance,
AA
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Old 10-22-2011, 10:14 AM
suvayu ali
 
Default Unable to ssh nodes with global IP

On Sat, Oct 22, 2011 at 11:31 AM, Abu Attar Musharih
<abuattar.musharih@gmail.com> wrote:
> I tried to remote login (using ssh) to this IP address from another
> machine but failed.
>
> The following message appears,
>
> ssh: connect to host 120.166.xx.xxx port 22: Connection timed out
>
>
> Editing */etc/sysconfig/iptables and add --dport 22 -j Accept does not help.
>
> Could any one please provide some suggestions?
>

Are you certain that your provider allows such connections? You could
ask their customer support if they know.

--
Suvayu

Open source is the future. It sets us free.
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Old 10-22-2011, 11:12 AM
Andras Simon
 
Default Unable to ssh nodes with global IP

2011/10/22, Abu Attar Musharih <abuattar.musharih@gmail.com>:
> Dear List,
>
> My internet connection is via mobile broadband. The ifconfig lists
> the ppp0 with IP address,
>
>
> ppp0 Link encap:Point-to-Point Protocol
> inet addr:120.165.xx.xxx P-t-P:10.64.64.64 Mask:255.255.255.255
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
> RX packets:5239 errors:0 dropped:0 overruns:0 frame:0
> TX packets:6371 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:3
> RX bytes:3867747 (3.6 MiB) TX bytes:1020544 (996.6 KiB)
>
> I tried to remote login (using ssh) to this IP address from another
> machine but failed.
>
> The following message appears,
>
> ssh: connect to host 120.166.xx.xxx port 22: Connection timed out
>
>
> Editing /etc/sysconfig/iptables and add --dport 22 -j Accept does not help.
>
> Could any one please provide some suggestions?

Can you ping the machine? If yes, then are there traces in the logs
that show the connection attempts? (You can make iptables log those.)
I don't know much about networking, but I think it's good to isolate
where the real problem lies. It may not have to do anything with ssh
or the firewall.

Andras
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Old 10-22-2011, 11:41 AM
 
Default Unable to ssh nodes with global IP

Hi,

Could be several reasons.
I presume that you succeede in ssh-ing to that machine, from another client (i.e. The machine does accept incomoing ssh-request)

Perhaps firewall settings?
Or accept/deny configurations?


----- Oorspronkelijk bericht -----
Van: Abu Attar Musharih [mailto:abuattar.musharih@gmail.com]
Verzonden: Saturday, October 22, 2011 11:31 AM
Aan: Community support for Fedora users <users@lists.fedoraproject.org>
Onderwerp: Unable to ssh nodes with global IP

Dear List,

My internet connection is via mobile broadband. The ifconfig lists
the ppp0 with IP address,


ppp0 Link encap:Point-to-Point Protocol
inet addr:120.165.xx.xxx P-t-P:10.64.64.64 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:5239 errors:0 dropped:0 overruns:0 frame:0
TX packets:6371 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:3867747 (3.6 MiB) TX bytes:1020544 (996.6 KiB)

I tried to remote login (using ssh) to this IP address from another
machine but failed.

The following message appears,

ssh: connect to host 120.166.xx.xxx port 22: Connection timed out


Editing /etc/sysconfig/iptables and add --dport 22 -j Accept does not help.

Could any one please provide some suggestions?

Thanks in advance,
AA
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Old 10-22-2011, 12:17 PM
"Mikkel L. Ellertson"
 
Default Unable to ssh nodes with global IP

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 10/22/2011 04:31 AM, Abu Attar Musharih wrote:
> Dear List,
>
> My internet connection is via mobile broadband. The ifconfig lists
> the ppp0 with IP address,
>
>
> ppp0 Link encap:Point-to-Point Protocol
> inet addr:120.165.xx.xxx P-t-P:10.64.64.64 Mask:255.255.255.255
> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
> RX packets:5239 errors:0 dropped:0 overruns:0 frame:0
> TX packets:6371 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:3
> RX bytes:3867747 (3.6 MiB) TX bytes:1020544 (996.6 KiB)
>
> I tried to remote login (using ssh) to this IP address from another
> machine but failed.
>
> The following message appears,
>
> ssh: connect to host 120.166.xx.xxx port 22: Connection timed out
>
>
> Editing /etc/sysconfig/iptables and add --dport 22 -j Accept does not help.
>
> Could any one please provide some suggestions?
>
> Thanks in advance,
> AA
Dumb question 1: Did you reload iptables after making the changes?

Dumb question 2: Is sshd running on the machine you are trying to
connect to?

Mikkel
- --

Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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Old 10-22-2011, 12:28 PM
Ed Greshko
 
Default Unable to ssh nodes with global IP

On 10/22/2011 08:17 PM, Mikkel L. Ellertson wrote:
> On 10/22/2011 04:31 AM, Abu Attar Musharih wrote:
> > Dear List,
>
> > My internet connection is via mobile broadband. The ifconfig lists
> > the ppp0 with IP address,
>
>
> > ppp0 Link encap:Point-to-Point Protocol
> > inet addr:120.165.xx.xxx P-t-P:10.64.64.64
> Mask:255.255.255.255
> > UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
> > RX packets:5239 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:6371 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:3
> > RX bytes:3867747 (3.6 MiB) TX bytes:1020544 (996.6 KiB)
>
> > I tried to remote login (using ssh) to this IP address from another
> > machine but failed.
>
> > The following message appears,
>
> > ssh: connect to host 120.166.xx.xxx port 22: Connection timed out
>
>
> > Editing /etc/sysconfig/iptables and add --dport 22 -j Accept does
> not help.
>
> > Could any one please provide some suggestions?
>
> > Thanks in advance,
> > AA
> Dumb question 1: Did you reload iptables after making the changes?
>
> Dumb question 2: Is sshd running on the machine you are trying to
> connect to?
>
>

Dumb question 3: Above one sees... inet addr:120.165.xx.xxx

And then one sees... ssh: connect to host 120.166.xx.xxx

Does anyone see a difference between 165 and 166?

--
Even if you do learn to speak correct English, whom are you going to
speak it to? -- Clarence Darrow

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Old 10-22-2011, 12:48 PM
"Mikkel L. Ellertson"
 
Default Unable to ssh nodes with global IP

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 10/22/2011 07:28 AM, Ed Greshko wrote:
> On 10/22/2011 08:17 PM, Mikkel L. Ellertson wrote:
>> On 10/22/2011 04:31 AM, Abu Attar Musharih wrote:
>>> Dear List,
>>
>>> My internet connection is via mobile broadband. The ifconfig lists
>>> the ppp0 with IP address,
>>
>>
>>> ppp0 Link encap:Point-to-Point Protocol
>>> inet addr:120.165.xx.xxx P-t-P:10.64.64.64
>> Mask:255.255.255.255
>>> UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
>>> RX packets:5239 errors:0 dropped:0 overruns:0 frame:0
>>> TX packets:6371 errors:0 dropped:0 overruns:0 carrier:0
>>> collisions:0 txqueuelen:3
>>> RX bytes:3867747 (3.6 MiB) TX bytes:1020544 (996.6 KiB)
>>
>>> I tried to remote login (using ssh) to this IP address from another
>>> machine but failed.
>>
>>> The following message appears,
>>
>>> ssh: connect to host 120.166.xx.xxx port 22: Connection timed out
>>
>>
>>> Editing /etc/sysconfig/iptables and add --dport 22 -j Accept does
>> not help.
>>
>>> Could any one please provide some suggestions?
>>
>>> Thanks in advance,
>>> AA
>> Dumb question 1: Did you reload iptables after making the changes?
>>
>> Dumb question 2: Is sshd running on the machine you are trying to
>> connect to?
>>
>>
>
> Dumb question 3: Above one sees... inet addr:120.165.xx.xxx
>
> And then one sees... ssh: connect to host 120.166.xx.xxx
>
> Does anyone see a difference between 165 and 166?
>
I missed that - I think you nailed it. (Time for coffee!)

Mikkel
- --

Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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Old 10-23-2011, 09:09 AM
Abu Attar Musharih
 
Default Unable to ssh nodes with global IP

>> And then one sees... * ssh: connect to host 120.166.xx.xxx
>>
>> Does anyone see a difference between 165 and 166?
>>
> I missed that - I think you nailed it. (Time for coffee!)
>

My apology, that was a typo. I have tried several times for different
global ip address every time I reactivated the connection. So, Ssh
was done to the right IP but failed. I baceme curious because with the
same provider and the same service, I was able to do ssh before. Also,
inside LAN with ip 192.168.xx.xx, ssh works fine. /etc/init.d/sshd is
running.

The customer service said that ssh is not allowed. So, what to do
then? I badly need a server with global IP for experimenting grid
computing.

Regards,
AA
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Old 10-23-2011, 09:43 AM
Reindl Harald
 
Default Unable to ssh nodes with global IP

Am 23.10.2011 11:09, schrieb Abu Attar Musharih:
> The customer service said that ssh is not allowed. So, what to do
> then? I badly need a server with global IP for experimenting grid
> computing

[root@srv-rhsoft:~]$ cat /etc/ssh/sshd_config
Port 22
Port 10022
Protocol 2
......

if we are spaeking OUTGOING ssh from your home-network is not allowed by
your ISP then search a new one because this is unacceptable






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Old 10-23-2011, 10:05 AM
Ed Greshko
 
Default Unable to ssh nodes with global IP

On 10/23/2011 05:09 PM, Abu Attar Musharih wrote:
> The customer service said that ssh is not allowed. So, what to do
> then? I badly need a server with global IP for experimenting grid
> computing.

If they don't allow ssh what service do they allow? If, for example,
they allow you to run a pop server and you don't use pop3 then run your
ssh server on port 110.



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