On Thu, 2009-01-29 at 10:24 +1100, Simon Slater wrote:
Hi all. The last few days I've attempted to setup a DHCP server
on our small SOHO network, and went round in a big circle to where I
started.
What I would like to achieve is:
/-> eth0 192.168.1.? -> DSL router 192.168.1.254 -> internet.
Server \
(dell.local)\->eth1 192.168.1.1 -> LAN
To begin with the Linksys router was serving addresses so I
turned this function off. From the sample .conf, various howtos and
posts to this list I came up with a very simple dhcpd.conf which could
be added to later as extra functionality is needed, as follows:
[root@dell ~]# cat /etc/dhcpd.conf
#Sample /etc/dhcpd.conf
# (add your comments here)
default−lease−time 600;
max−lease−time 7200;
option subnet−mask 255.255.255.0;
option broadcast−address 192.168.1.255;
option routers 192.168.1.254;
#option domain−name−servers 192.168.1.1, 192.168.1.2;
#option domain−name "mydomain.org";
authoritative;
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.100 192.168.1.199;
host dell.local {
hardware ethernet 00:1F:1F:09:38:A2;
fixed-address 192.168.1.1;
}
}
[root@dell ~]#
The first problem is, should eth0 take an address via dhcp or be
set one? Should it be bound to a MAC address in the dhcpd.conf? Does
this file look okay?
The second situation is that:
[root@dell ~]# service dhcpd start
Starting dhcpd: [FAILED]
[root@dell ~]#
with a Selinux denial:
SELinux is preventing dhcpd (dhcpd_t) "read write" unconfined_t.
with SEtroubleshooter giving no suggestions for a fix. How should I
progress here?
I have set things back to the way they were after install ( I
think). The /var/lib/dhcpd.leases file exists. Ports 67 & 68 are
allowed through the firewall and all eth* devices are trusted (using
system-config-firewall). Any advice will be most thankfully welcomed.
----
if Dell.local is your dhcp server, don't include it in dhcp but fix it's
ip address in setup (system-config-network).
thus, I would remove this section...
host dell.local {
hardware ethernet 00:1F:1F:09:38:A2;
fixed-address 192.168.1.1;
}
lease time is really short, probably would recommend that you increase to 3600
I think you need to declare ddns-update-style which at this point, might just as well be
none.
as for SELinux, I would suspect that 'restorecon /etc/dhcpd.conf' should do the
trick.
Craig