On 6/28/2010 1:07 PM, Rachid Abdelkhalak wrote: > > This is not a problem for me, the end customer's IT boss asked me to see > if it is possible to do it, he dont like to publish theire private IPs > for 'Security reasons'. > > If it is not possible, i have to give him convincing arguments. > > Thank you > > -- > |-Rachid Abdelkhalak > |-Network Security Engineer, MTDS > |-in morocco 080200MTDS > |-direct +212(0)537278820 > |-mobile +212(0)661173437 > |-14, rue 16 novembre > |-Rabat 10080 Kingdom of Morocco > > On Mon, 28 Jun 2010, Jonathan Tripathy wrote: > >> Richid, >> >> Why is it a problem that people see your internal IPs? >> >> Thanks >> >> On 28/06/10 18:03, Rachid Abdelkhalak wrote: >>> >>> Thank you Jeroen, >>> >>> My need is to prvent peopel seeing my internal IPs, if i can make my >>> server write on the header 127.0.0.1 instead instead of the >>> 192.168.0.2 is will be great. >>> >>> I see on the header of your mail for example, all Received: tags >>> indicate 127.0.0.1, i want my server to do the same thing if possible. >>> >>> Thank you >>> >>> -- >>> |-Rachid Abdelkhalak >>> |-Network Security Engineer, MTDS >>> |-in morocco 080200MTDS >>> |-direct +212(0)537278820 >>> |-mobile +212(0)661173437 >>> |-14, rue 16 novembre >>> |-Rabat 10080 Kingdom of Morocco >>> >>> On Sun, 27 Jun 2010, Jeroen Geilman wrote: >>> >>>> On 06/27/2010 01:20 PM, Rachid Abdelkhalak wrote: >>>>> >>>>> Hello List, >>>>> >>>>> I have a mail relay and an internal mail server both under Postfix >>>>> and behind a firewall (DMZ and LAN), on both segment i'm using a >>>>> private IP address with NAT. >>>>> >>>>> On all outgoing emails headers sent by our users, i can see my >>>>> servers ip addresses (private). >>>>> >>>>> Is there any config that i can do to make postfix write hostname >>>>> instead of the ip address on the header or replace the private ip >>>>> address by the public ip address? >>>>> >>>>> Thank you >>>>> >>>>> Brest regards. >>>> >>>> The format and content of Received: headers is described in detail >>>> in the relevant RFCs. >>>> >>>> Make sure you know why you want to mess with them before blundering >>>> forward. >>>> >>>> J. >>>> >>>> >>
I guess I don't see how an internal private IP is a security risk. -Matt
