ftp & ping

Chris Aitken aitken-BwLjziHGQLusTnJN9+BGXg at public.gmane.org
Fri Jun 4 16:47:18 UTC 2004


Robert Brockway wrote:

>On Fri, 4 Jun 2004, Chris Aitken wrote:
>
>  
>
>>I want to transfer files from my debian system to my redhat system. I
>>can ping the debian PC (192.168.0.2) from the redhat PC (192.168.0.1)
>>but not vice versa.
>>
>>p733:/home/chris# ping 192.168.0.1
>>PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
>>>From 192.168.0.2 icmp_seq=1 Destination Host Unreachable
>>>From 192.168.0.2 icmp_seq=2 Destination Host Unreachable
>>    
>>
>
>Could you show us ifconfig eth0 (assuming this is the relevant interface)
>just to make sure netmasks, etc are ok?
>  
>
chris-J1OC1CCqXXQ at public.gmane.org:~$ /sbin/ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 00:50:8B:D8:76:CD
          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:64 errors:0 dropped:0 overruns:0 frame:0
          TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:10355 (10.1 KiB)  TX bytes:2016 (1.9 KiB)
          Interrupt:20 Base address:0x1400 Memory:40000000-40000038

>Also look at iptables -L on each system.  Are you blocking icmp types 0 or
>8 somewhere?  If you log firewall blocks somewhere you may wish to look
>there while pinging.
>
>  
>
pinging the rh from deb I got,

chris-J1OC1CCqXXQ at public.gmane.org:~$ su
Password:
p733:/home/chris# /sbin/iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

pinging deb from rh I got,

[chris-RMRJWkH6aXE at public.gmane.org chris]$ su
Password:
[root-RMRJWkH6aXE at public.gmane.org chris]# /sbin/iptables -L
/lib/modules/2.4.18-14/kernel/net/ipv4/netfilter/ip_tables.o: 
init_module: Device or resource busy
Hint: insmod errors can be caused by incorrect module parameters, 
including invalid IO or IRQ parameters.
     You may find more information in syslog or the output from dmesg
/lib/modules/2.4.18-14/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
/lib/modules/2.4.18-14/kernel/net/ipv4/netfilter/ip_tables.o failed
/lib/modules/2.4.18-14/kernel/net/ipv4/netfilter/ip_tables.o: insmod 
ip_tables failed
iptables v1.2.6a: can't initialize iptables table `filter': iptables 
who? (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

>>Of course when I try to ftp into the deb system from the redhat one the
>>connection is refused.
>>    
>>
>
>Did it actually report "connect refused" or did it just hang?  The
>difference is important.
>  
>
[chris-RMRJWkH6aXE at public.gmane.org chris]$ ftp 192.168.0.2
ftp: connect: Connection refused

>Rob
>
>  
>


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