Dhcpd cannot assign DHCP Static Mappings for client after I upgrade pfsense

lucky_nguyen

I have upgraded pfsense to 2.2.3-RELEASE (amd64) . I am using DHCP static mapping to assign IP for end user. Existing end user get IP from dhcpd without problem but new end user cannot get IP. There is a line in dhcpd log:

dhcpd: DHCPDISCOVER from xx:xx:xx:xx:xx:xx via igb1: network 192.168.32.0/20: no free leases

Follow the log, I guess Dhcpd don't have free lease to assign IP but my IP range has many free IPs. I go to /var/dhcpd/var/db.

ls -l
-rw-r--r--  1 root  _dhcp    59564 Jul 25 20:38 dhcpd.leases
-rw-r--r--  1 dhcpd  _dhcp    62306 Jul 25 20:38 dhcpd.leases~
-rw-rw----  1 dhcpd  _dhcp      0 Sep 30  2014 dhcpd6.leases

My dhcpd don't have write permission on dhcpd.leases
I do it:

chown dhcpd:_dhcp dhcpd.leases

It works !

But when I restart dhcpd service, my change went out. I don't want to chown after I restart dhcpd.

There is other problem. When my pfsense server is rebooted by loss power, dhcpd is impossible to start.

-rw-r--r--  1 2051  65    59564 Jul 25 20:38 dhcpd.leases
-rw-r--r--  1 2051  65    62306 Jul 25 20:38 dhcpd.leases~
-rw-rw----  1 2051  2051      0 Sep 30  2014 dhcpd6.leases

I absolutely lose all group and user for dhcpd. I don't have any ideas for the reasons.

My question is how do I make Dhcpd work ?

P/S: I remember my dhcp group name is dhcpd. I don't know why it is _dhcp.
This is the command that dhcpd is using to start:

/usr/local/sbin/dhcpd -user dhcpd -group _dhcp -chroot /var/dhcpd -cf /etc/dhcpd.conf -pf /var/run/dhcpd.pid igb3 igb1 igb6 igb7 igb2_vlan5 igb2_vlan45 igb2_vlan6 igb2_vlan69 igb2_vlan67 igb2_vlan20

doktornotor

Stop messing with the permissions, they are just fine. You even posted that:

-user dhcpd -group _dhcp

which matches both the user and group permissions.

@lucky_nguyen:

When my pfsense server is rebooted by loss power, dhcpd is impossible to start. I absolutely lose all group and user for dhcpd. I don't have any ideas for the reasons.

Get latest 2.2.4 snapshot. Known issue with filesystem corruption.

lucky_nguyen

File permission is not fine

ls -l
-rw-r--r--  1 root  _dhcp    59564 Jul 25 20:38 dhcpd.leases
-rw-r--r--  1 dhcpd  _dhcp    62306 Jul 25 20:38 dhcpd.leases~
-rw-rw----  1 dhcpd  _dhcp      0 Sep 30  2014 dhcpd6.leases
My dhcpd don't have write permission on dhcpd.leases

I do it:
chown dhcpd:_dhcp dhcpd.leases
It works ! New end users are possible to get IP from DHCP

But when I restart dhcpd service, my change went out. I don't want to chown after I restart dhcpd.

I recreate groupname _dhcp and username dhcpd for dhcpd service but incorrect permission make DHCP no free lease.
It always changes to root: _dhcp after I restart dhcpd service.

doktornotor

Dude. You have a corrupt filesystem with missing/screwed /etc/group. Stop "fixing" permissions, do a clean 2.2.4 install and restore config.