Re: odd delay with ssh and ipchains

2001-02-11 Thread Timothy H. Keitt

Actually, I blocked my DNS connection and it was timing out... :-\

Tim

Jason Schepman wrote:


Tim,

I don't think you're doing anything wrong.  I assume that you're running ssh
as a daemon.  If this is the case, mine does the same thing.  Sometimes my
ssh connections don't even go through until I attempt a second connection.
It's almost as if the daemon has to 'wake up' before it will accept
connections.

-jason


- Original Message -
From: "Timothy H. Keitt" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, February 10, 2001 5:28 PM
Subject: odd delay with ssh and ipchains



I just configured ipchains on my firewall box to only allow www and ssh
access from outside the local net.  Web access works like a charm, but
when trying to connect with ssh, I get a 5-10 second delay before the
connection completes.  I'm running woody with 2.2.18.  Here's the rule
chain:

keittlab:~# ipchains -L -v
Chain input (policy REJECT: 745901 packets, 315942760 bytes):
pkts bytes target prot opttosa tosx  ifname mark
outsize  sourcedestination   ports
 65  5952 ACCEPT icmp -- 0xFF 0x00  any
   anywhere anywhere  any ->   any
6529  326K ACCEPT all  -- 0xFF 0x00  lo
   anywhere anywhere  n/a
3774  377K ACCEPT all  -- 0xFF 0x00  eth1
   anywhere anywhere  n/a
15118 1209K public all  -- 0xFF 0x00  eth0
   anywhere anywhere  n/a
Chain forward (policy REJECT: 0 packets, 0 bytes):
Chain output (policy ACCEPT: 628482 packets, 317229217 bytes):
Chain public (1 references):
pkts bytes target prot opttosa tosx  ifname mark
outsize  sourcedestination   ports
1696  131K ACCEPT tcp  -- 0xFF 0x00  any
   anywhere keittlab.bio.sunysb.edu  any ->   ssh
  0 0 ACCEPT udp  -- 0xFF 0x00  any
   anywhere keittlab.bio.sunysb.edu  any ->   ssh
 32  6934 ACCEPT tcp  -- 0xFF 0x00  any
   anywhere keittlab.bio.sunysb.edu  any ->   www

Perhaps this is because I'm matching on interfaces and not net addresses?

T.

--
Timothy H. Keitt
Department of Ecology and Evolution
State University of New York at Stony Brook
Phone: 631-632-1101, FAX: 631-632-7626
http://life.bio.sunysb.edu/ee/keitt/


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--
Timothy H. Keitt
Department of Ecology and Evolution
State University of New York at Stony Brook
Phone: 631-632-1101, FAX: 631-632-7626
http://life.bio.sunysb.edu/ee/keitt/



Re: odd delay with ssh and ipchains

2001-02-10 Thread Jason Schepman
Tim,

I don't think you're doing anything wrong.  I assume that you're running ssh
as a daemon.  If this is the case, mine does the same thing.  Sometimes my
ssh connections don't even go through until I attempt a second connection.
It's almost as if the daemon has to 'wake up' before it will accept
connections.

-jason


- Original Message -
From: "Timothy H. Keitt" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, February 10, 2001 5:28 PM
Subject: odd delay with ssh and ipchains


> I just configured ipchains on my firewall box to only allow www and ssh
> access from outside the local net.  Web access works like a charm, but
> when trying to connect with ssh, I get a 5-10 second delay before the
> connection completes.  I'm running woody with 2.2.18.  Here's the rule
> chain:
>
> keittlab:~# ipchains -L -v
> Chain input (policy REJECT: 745901 packets, 315942760 bytes):
> pkts bytes target prot opttosa tosx  ifname mark
> outsize  sourcedestination   ports
>  65  5952 ACCEPT icmp -- 0xFF 0x00  any
>anywhere anywhere  any ->   any
> 6529  326K ACCEPT all  -- 0xFF 0x00  lo
>anywhere anywhere  n/a
> 3774  377K ACCEPT all  -- 0xFF 0x00  eth1
>anywhere anywhere  n/a
> 15118 1209K public all  -- 0xFF 0x00  eth0
>anywhere anywhere  n/a
> Chain forward (policy REJECT: 0 packets, 0 bytes):
> Chain output (policy ACCEPT: 628482 packets, 317229217 bytes):
> Chain public (1 references):
> pkts bytes target prot opttosa tosx  ifname mark
> outsize  sourcedestination   ports
> 1696  131K ACCEPT tcp  -- 0xFF 0x00  any
>anywhere keittlab.bio.sunysb.edu  any ->   ssh
>   0 0 ACCEPT udp  -- 0xFF 0x00  any
>anywhere keittlab.bio.sunysb.edu  any ->   ssh
>  32  6934 ACCEPT tcp  -- 0xFF 0x00  any
>anywhere keittlab.bio.sunysb.edu  any ->   www
>
> Perhaps this is because I'm matching on interfaces and not net addresses?
>
> T.
>
> --
> Timothy H. Keitt
> Department of Ecology and Evolution
> State University of New York at Stony Brook
> Phone: 631-632-1101, FAX: 631-632-7626
> http://life.bio.sunysb.edu/ee/keitt/
>
>
> --
> To UNSUBSCRIBE, email to [EMAIL PROTECTED]
> with a subject of "unsubscribe". Trouble? Contact
[EMAIL PROTECTED]
>
>



odd delay with ssh and ipchains

2001-02-10 Thread Timothy H. Keitt
I just configured ipchains on my firewall box to only allow www and ssh  
access from outside the local net.  Web access works like a charm, but  
when trying to connect with ssh, I get a 5-10 second delay before the 
connection completes.  I'm running woody with 2.2.18.  Here's the rule 
chain:


keittlab:~# ipchains -L -v
Chain input (policy REJECT: 745901 packets, 315942760 bytes):
pkts bytes target prot opttosa tosx  ifname mark   
outsize  sourcedestination   ports
65  5952 ACCEPT icmp -- 0xFF 0x00  any
  anywhere anywhere  any ->   any
6529  326K ACCEPT all  -- 0xFF 0x00  lo 
  anywhere anywhere  n/a
3774  377K ACCEPT all  -- 0xFF 0x00  eth1   
  anywhere anywhere  n/a
15118 1209K public all  -- 0xFF 0x00  eth0   
  anywhere anywhere  n/a

Chain forward (policy REJECT: 0 packets, 0 bytes):
Chain output (policy ACCEPT: 628482 packets, 317229217 bytes):
Chain public (1 references):
pkts bytes target prot opttosa tosx  ifname mark   
outsize  sourcedestination   ports
1696  131K ACCEPT tcp  -- 0xFF 0x00  any
  anywhere keittlab.bio.sunysb.edu  any ->   ssh
 0 0 ACCEPT udp  -- 0xFF 0x00  any
  anywhere keittlab.bio.sunysb.edu  any ->   ssh
32  6934 ACCEPT tcp  -- 0xFF 0x00  any
  anywhere keittlab.bio.sunysb.edu  any ->   www


Perhaps this is because I'm matching on interfaces and not net addresses?

T.

--
Timothy H. Keitt
Department of Ecology and Evolution
State University of New York at Stony Brook
Phone: 631-632-1101, FAX: 631-632-7626
http://life.bio.sunysb.edu/ee/keitt/