ping

[Daniel Son]

Good you've figured it out. from iptables output i see that IPP is 
opened for the rest of the world. unless it is blocked by another, 
internet facing firewall, anybody can print on your printers, or you are 
using ipsec for the comupter4 to access computer1 (I see it is opened on 
compter1 as well).

D


--
www.meta-for.org - Open Source software catalog



Chris Aitken wrote:
> Daniel Son wrote:
>> Chris,
>>
>> Are you able to ping computer1 from computer2 or computer3?
>> do you ping computer1 by IP address or by name, and if by name does 
>> the name resolve properly?
>> what does iptables -L say?
> I'm okay now. My eth0:1 (LAN) was just Deactivated. I guess all other 
> pinging worked because eth0 was still Activated.
>
> BTW, here's the output of iptables -L
> Anything in there I should be concerned about (having never used that 
> command)?
>
> [root at p733 chris]# /sbin/iptables -L
> Chain INPUT (policy ACCEPT)
> target     prot opt source               destination        
> RH-Firewall-1-INPUT  all  --  anywhere             anywhere          
> Chain FORWARD (policy ACCEPT)
> target     prot opt source               destination        REJECT     
> all  --  anywhere             anywhere            reject-with 
> icmp-host-prohibited
>
> Chain OUTPUT (policy ACCEPT)
> target     prot opt source               destination       
> Chain RH-Firewall-1-INPUT (1 references)
> target     prot opt source               destination        ACCEPT     
> all  --  anywhere             anywhere           ACCEPT     icmp --  
> anywhere             anywhere            icmp any
> ACCEPT     esp  --  anywhere             anywhere           ACCEPT     
> ah   --  anywhere             anywhere           ACCEPT     udp  --  
> anywhere             224.0.0.251         udp dpt:mdns
> ACCEPT     udp  --  anywhere             anywhere            udp dpt:ipp
> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ipp
> ACCEPT     all  --  anywhere             anywhere            state 
> RELATED,ESTABLISHED
> ACCEPT     tcp  --  anywhere             anywhere            state NEW 
> tcp dpt:ssh
> REJECT     all  --  anywhere             anywhere            
> reject-with icmp-host-prohibited
>
> Chris
>
>>
>> d
>>
>>
>> -- 
>> www.meta-for.org - Open Source software catalog
>>
>>
>>
>> Chris Aitken wrote:
>>> I am trying to set up a fourth computer to print to a remote 
>>> printer. I guess I know how to do this now, but I can't ping 
>>> computer1 from computer4.
>>>
>>> The hosts.allow file (computer1) looks fine.
>>>
>>> # hosts.allow   This file describes the names of the hosts which are
>>> #               allowed to use the local INET services, as decided
>>> #               by the '/usr/sbin/tcpd' server.
>>> all : allow : all
>>>
>>> The hosts.deny file has no entries.
>>>
>>> What can I try next?
>>>
>>> Computer4 is on the Internet (through router>cable modem) and can 
>>> ping the other two computers and the router. It just can't ping 
>>> computer1 (which has the printer connected to it).
>>>
>>> Chris
>>>
>>>
>>>
>>> -- 
>>> The Toronto Linux Users Group.      Meetings: http://gtalug.org/
>>> TLUG requests: Linux topics, No HTML, wrap text below 80 columns
>>> How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists
>> -- 
>> The Toronto Linux Users Group.      Meetings: http://gtalug.org/
>> TLUG requests: Linux topics, No HTML, wrap text below 80 columns
>> How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists
>>
>>
>
> -- 
> The Toronto Linux Users Group.      Meetings: http://gtalug.org/
> TLUG requests: Linux topics, No HTML, wrap text below 80 columns
> How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists
--
The Toronto Linux Users Group.      Meetings: http://gtalug.org/
TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists