Need to set up Sendmail Relay for a remote IP

net-wolf · 07-08-2009, 05:26 PM

I am transitioning from Fedora 9 to Solaris 10. I have sendmail set up to work locally (on Solaris) and I can send mail from outside the network to the Solaris machine. (I've been through the [local = false] hoop. I can telnet into the machine to sendmail and everything works fine.

What I am trying to do now is set up sendmail on Solaris 10 by assigning a remote IP (that's not local) to be allowed. In Fedora this was quite easy ... and I am guessing that I am missing something easy to get this working with Solaris 10.

I have not figured out where to put the IP in the Solaris 10 config file to allow it ... and for the config to allow a specific IP to relay.

Thanks,

steve

h@foorsa.biz · 07-10-2009, 07:21 AM

on solaris 10 either its x86 or sparc
here i'll assume you have GigaEthernet interface

Code:

e1000g0

e1000g driver name
0 is the instance number
you can determine physical interfaces using

Code:

dladm show-dev | show-link

determine plumbed and loopback interfaces using

Code:

ifconfig -a

for an example
NIC naming within Solaris OS: i.e. e1000g0
IP Address - /etc/hostname.e1000g0
domain name - /etc/defaultdomain
netmask - /etc/inet/netmasks
hosts database -

Code:

 /etc/hosts

,

Code:

/etc/inet/hosts

- loopback & ALL interfaces
client DNS resolver file -

Code:

/etc/resolv.conf

default Gateway -

Code:

/etc/defaultrouter

node name -

Code:

 /etc/nodename

Plumb/enable the e1000g0

Code:

ifconfig e1000g0 plumb up

unplumb/disable the e1000g0

Code:

ifconfig e1000g0 unplumb down

ensure that newly-plumbed interface settings persists across reboots
Steps include updating/creating the following files:
/etc/hostname.e1000g0

Code:

echo "192.168.1.10" > > /etc/hostname.e1000g0

create entry in /etc/hosts - ipaddr xxx.xxx.xxx.xxx hostname
example
echo "dotted ipaddr dotted subnetmask" >> /etc/inet/netmasks
example

Code:

echo "192.168.1.10 255.255.255.0" >> /etc/inet/netmasks

i hope this helps