mount to NFS server 'julie' failed: No route to host

[Rick Stevens]

On 04/12/2012 02:32 PM, don fisher wrote:
<snip>
> In the old days, there were files /etc/hosts.allow and /etc/hosts.deny.
> As I recall, they had something to do with tcpd. Do they serve any
> purpose with ipchains?

No, /etc/hosts.[allow|deny] are part of the tcpwrapper system and thus
are in userspace (at the application level). Applications must be
compiled and linked with tcpwrappers for it to work. In other words,
it's "voluntary".

iptables is a kernel-level firewall. Packets have to get through
iptables before they're even "passed up the food chain" to be seen by
the tcpwrapper stuff. If iptables is active, then all network I/O goes
through iptables regardless of what an individual application wants. If
iptables denies a packet, then the upper level stuff won't even see the
packet in the first place.
----------------------------------------------------------------------
- Rick Stevens, Systems Engineer, AllDigital    ricks at alldigital.com -
- AIM/Skype: therps2        ICQ: 22643734            Yahoo: origrps2 -
-                                                                    -
- "People tell me I look at the dark side.  That's not true.  I have -
-   the heart of a small boy......in a jar right here on my desk."   -
-                                                    -- Stephen King -
----------------------------------------------------------------------