Ubuntu Servers :: Internal Hostname Appearing In Mail Headers?

Mar 24, 2010

We have an Ubuntu server running on Amazon EC2, hosting a website. We also have postfix, in order to send mail (receiving mail is done by another server which is specified in our MX records). My problem is that the internal hostname of the machine ("domU-xx-xx-xx-xx-xx-xx.compute-1.internal") appears in some "Received:" headers in the emails sent. Is that normal? It seems rather peculiar to me, and I'm thinking some e-mail systems might consider it spam because of this. GMail doesn't consider it spam, but not all systems are as smart as GMail

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Ubuntu Servers :: Possible To Turn Internal IP Into Hostname?

May 11, 2011

I saw in the tutorial "The Perfect Ubuntu 11.04 Server ISPConfig3" that it is possible to turn the internal ip into a hostname.
Example: 192.168.1.170 -> myserver.example.com
Example: 192.168.1.128 -> aserver.inet
However, when I edit my /etc/hosts file and after I echo the name to the /etc/hostname file, it still doesn't work. I am using Ubuntu Server 11.04 (Natty Narwal)
- ChosenOreo

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Server :: Configure Postfix To Relay Mail To Multiple Internal Mail Servers With Different Domains?

Aug 6, 2010

Two exchange servers internally. One is setup for example.com (192.168.1.10) and the other is setup for example2.com (192.168.1.20) Both are behind a single public IP.

I want to use postfix to sit in front of the two exchange servers. Postfix will accept mail for both domains and relay to the appropriate server. I have postfix installed with only defaults at this point.

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Fedora Servers :: Internal Mail Service Setup With 7 PCs On Network?

Jul 27, 2010

I've 7 PC's on my network. I've to setup an internal mail service, to send mails inside the network. I've installed Fedora 12 on one machine and the rest run's on Windows XP. What all packages do I need? How can I configure it?

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Ubuntu Servers :: Setup A Local Mail Server For Internal Testing On Development Work?

Dec 10, 2010

how to setup a local mail server for internal testing on my php development work. For example if I sent an email using php script to [url]....I should be able to check the mailbox of 'someone' either in Outlook or SquirrelMail.I have done some reading about this. All I know is that I need Postfix with Courier. But I just don't know to get it working.

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Networking :: Hostname Appearing On FiOS Actiontec Router

Jul 22, 2010

On my network right now I have Ubuntu, Fedora, Debian, and Linux Mint computers. I got tired of getting my IP addresses scrambled every time I reset my router (which is the first thing the techs make you do if something isn't working). So yesterday I setup my computers with static IP addresses (from the computer side instead of the router side). Each of my computers has a unique name (happens to be mario-themed). If I use hostname, I get the proper name:

Code:
[-@supermario ~]$ hostname
supermario.mushroomkingdom
[- @supermario ~]$ hostname -s
supermario

But on the router, only the Linux Mint system appears with a name. All the rest of the systems appear as their IP address. What can I do to make them send their hostname over to the router? What is Linux Mint doing differently?

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Server :: Sendmail Showing Internal IP And Hostname?

May 31, 2011

how to disable or modify the email headers showing the internal IP and hostname of the server when using sendmail. I want this removed or change to just a domain name.

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CentOS 5 :: Mail Stopped Working After Hostname Change

Aug 18, 2010

I built the system with one name and now want to change it.I do the usual things. change the /etc/hosts file change the hostname with the command hostname newname changed /etc/sysconfig/network and then mail stops working. Put it back to the old name and it works fine.So I am guessing I am missing something in the configuration for sendmail. I checked the sendmail.cf file under /etc/mail and no reference back to the hostname was found.I also tried the GUI on the console to change the hostbname.

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General :: Mail Not Sending To Internal Addresses

Sep 4, 2009

I'm using the mail command and I am able to send mail to my gmail account with out any problems. However when I send mail to deco -at- mycompany.com I nothing happens and no mail ever arrives in my mailbox. It might be worth mentioned that my centos5 is a virtual machine on the same server as the company exchange mail server.

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General :: Internal Mail Server Not Used For Email?

Feb 12, 2010

I am tired of managing local Address Books and Calendars. I use either POP or IMAP email accounts now and want to keep the email accounts I have. What is a good Mail Server I can setup to Let me use a Global Address Book and Shared Calendar System between Outlook 2003 and Evolution, but not create email accounts? In Other words I want a Local Server I can setup that does nothing but manage a Global Address Book and Calendars. I want to keep using POP and IMAP accounts for the email side of things.

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Ubuntu Servers :: Courier Mail 556 Address Unavailable - Cannot Recieve Mail ?

May 6, 2010

My courier server cannot recieve mail.

My freebsd installation has worked for quite some time w/o problems.

I'm using ubuntu as a replacement and have tried using the same settings from my previous server.

I keep getting the following error.

courieresmtpd:

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Ubuntu Servers :: Secondary Mail Server And A Mail Gateway/relay?

Aug 3, 2011

Our primary mail server is Exchange 2003 Standard on Windows Server 2003 Standard - don't shout at me; I inherited it already set up this way.I have a couple of hardware identical redundant servers (HP ML350 boxes), all with very fast 2 or 4 disk arrays, multiple core CPUs and plenty of memory, and I am looking at two potential new additions to the infrastructure.

A secondary mail server is high on my list of priories. I've been well and truly bitten by Exchange in the past and given that this particular box has been running four years straight and that it's mail store is dangerously large, having a secondary mail server in place suddenly makes a lot of sense.

A new Exchange 2010 box is currently being set up, but the secondary mail server will remain in place even when the new Exchange server is brought online, so this won't be a wasted exercise.... I also want a gateway box in place to filter and relay mail to the primary server, or to the secondary server if the primary is unavailable. Currently our outer perimeter is:

ISP supplied CISCO router
Draytek VigorPro 5510 UTM

Untangle running in bridged mode (primarily used for SPAM filtering, URL blacklisting, and very little else) Exchange 2003 sits behind the Untangle box. This is how I want to end up:

CISCO >> Draytek >> Ubuntu gateway >> Exchange/secondary mail server

I know I could replace/remove the Draytek but I want it to remain for several reasons, including lots of VPN dial-in users already configured and that it offers us an additional layer of email antivirus scanning before things hit the Exchange box. No point switching all of our remote workers over to new tunnels unnecessarily...

I have done some research and have started testing a pilot secondary mail server using Ubuntu/postfix DNS is properly set up and MX records and reverse PTR records are all present and correct, and things are looking encouraging so far. Before I go out over deep waters and start to flounder, has anyone who has done something like this got any obvious howlers I should be looking to avoid ?

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General :: Send Internal Email Using The Mail Command?

Jun 3, 2009

Send an E-mail to your local account. Try two different ways to send and read it. How can you check that it really arrived? I decided to try using the 'mail' and 'pine' commands. So:

1) Using the root account, intending to send an e-mail to myself (root):

Code:

# mail -s "Hello root!" root
Simple form of sending e-mails internally.
^D (this keystroke is to finish the e-mail)
EOT

2) Using 'pine', another e-mail client: The mail is composed correctly, with 'To:' field set to:

Quote:

[URL]

which is my hostname, as my box runs in a VMWare Slack 12.2 image. In both cases, nothing was received in my mailbox (by typing #mail)... Additionally I don't see any new e-mails when I look at the file '/var/spool/mail/root'. Do I need extra information configuring my mail client/server/service?

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Server :: Internal Mail Relay To Exchange Setup

Jan 25, 2010

I have ticket tracking software that mails ticket to groups. Right now the software is on an exchange server. After moving it to a dedicated linux server (debian lenny) I cant get it to email any of the internal domain addresses. I have tried to setup sendmail to relay it to the exchange server. Logs indicate that it was sent by the ticket tracking software but the message never hits the mailbox. It also wont get to any other mail address. Is there a better way to do this? The crm software will utilize either a smtp server or any mail server on the localhost. The problem is that with the dedicated server on the same network as the exchange server, it fails to send the mail even if I assign an external smtp server. But if the dedicated server is on a different network then it works using any smtp server in its configuration. I need something that can "pass the email" to the exchange server. Or just be able to send the mail to internal email account and still be on the same network.

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CentOS 5 Server :: Sending All Internal Mail To The ISP's SMTP?

Mar 27, 2009

I'd like to have anything that tries to send mail locally on my machine (including crontab reports for instance) to be handled by my ISP's smtp server instead of my machine acting like it's own SMTP server. I've spent around 15 hours trying to figure out how to do this and I keep either getting into things that I don't understand, or hitting brick walls (for instance, I found nullmailer, but after installing it, it seemed like it would only work on Unix) Is there an application like nullmailer which I can use as my MTA to forward all internal mail to a different SMTP?

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CentOS 5 :: Mail Are Sending From Internal To External Like Indiatimes?

May 23, 2011

i have centos 5.5 and qmail installed in it this qmail is used for internal mail , we are not send mail from internal to external ids i.e gmail, yahoo etc, this qmail intalled on 192.x.x.x ip server this ip is not live ip but my problem is that from few days mail are sending from internal to external like indiatimes ,yahoo etc

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Ubuntu Servers :: Can't Send Mail Using PostFix - Only Receive Mail

Jun 30, 2011

I set up my mail server using the guide here: [URL] I am able to receive mail, I can send mail locally, but I can't send to external addresses. This is in my mail.log: Quote: Jun 30 14:40:43 Server postfix/smtp[10725]: 2FD9322015BF: to=<myemail@gmail.com>, relay=none, delay=1634, delays=1484/0.02/150/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[74.125.65.27]:25: Connection timed out)

This is my main.cf:

[Code]...

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Ubuntu Servers :: Postfix Relay - Exchange Sends The Mail Instead Giving Recipient Mail A Valid Reverse DNS Lookup

Jan 12, 2011

The scenario: We have an external server that runs HTTP/DB servers for out shop system. Then, there's our local, in-house infrastructure that runs a.. yeah... Exchange 2010. The shop system on the external server needs to send mails to customers (order confirmations, invoices, etc.). seing as sending them directly through the local MTA (Postfix) would cause mail delivery problems because of reverse DNS issues, i've set the Postfix MTA to act as a satellite to our in-house Exchange Server, so the Exchange sends the mail instead, giving recipient mail servers a valid reverse DNS lookup.

Now, mails sent by the (proprietary, uneditable) shop system are relayed correctly and sent to the target e-mail address. My problem is: Mails not sent by the shop system, but by our own PHP scripts which run on that same external servers, are NOT relayed properly. So the Exchange is fine with the mails sent by the shop system, but not the mails sent by our scripts. This is what i get in the mail.log: The successfully relayed mail sent by the shop system:

[Code]....

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General :: Not Send Mail From Internal To External Ids I.e Gmail, Yahoo?

May 23, 2011

i have centos 5.5 and qmail installed in it this qmail is used for internal mail , we are not send mail from internal to external ids i.e gmail, yahoo etc, this qmail intalled on 192.x.x.x ip server this ip is not live ip but my problem is that from few days mail are sending from internal to external like indiatimes ,yahoo

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Ubuntu Servers :: Can't Ping By Its Hostname

Jan 3, 2010

I have installed a ubuntu 9.10 server to use mostly as a fileserver. When I installed the server I set it up as DHCP and later on I have changed the /etc/network/interfaces file, the /etc/hosts file and the /etc/hostname file. I have the ip 192.168.1.100 set on the server and I can ping and SSH this address. But I can not ping my server by it's hostname enighet. I am setting up a NFS server and I would like to use my servers hostname when I do this. Why can I not ping my server by it's hostname? These are the 3 files I have changed...

Code:
johan@enighet:~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo

[Code]....

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Ubuntu Servers :: Can't Set Hostname On LAMP 10.4

Dec 22, 2010

I've looked at several tutorials and since i'm a newb I can't figure them out. I'm trying to set my hostname on my LAMP 10.04. What files do I need to configure? (all IP's below are fake)

Here are the first lines from /etc/apache2/sites-available/default

Code:
<VirtualHost 111.111.111.111:80>
ServerAdmin webmaster@localhost
/etc/apache2/ports.conf has these lines after the comments

[Code]....

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Ubuntu Servers :: Hostname Name Or Service Not Known

Jun 22, 2011

I am trying to set up a web server, i have put in a hostname.In terminal command: hostname shows 'promisedland, but hostname -F gives me name or service not known.How do I associate hostname properly, I have registered a hostname through DynDNS.I can access the page in my browser so I know it is there, I see the blank "u made it page".I just want to host a web server w/ a directory to my shared files (movies, music etc) that are on my server.

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Ubuntu Servers :: Can't Resolve Hostname From Windows

Mar 3, 2010

I have two computers.

Computer A = windows 7.
Computer B = Ubuntu Server 9.10

Computer B automatically receives an IP address from my router.

I can ping computer B from computer A using the IP address. I cannot ping computer B from computer A using its hostname.

My router did not show a hostname under it's active clients table. After some searching I found a threat where somebody suggested modifying /etc/dhcp3/dhclient.conf and adding 'send hostname "blahblah"' This allowed me to see the hostname in my router but I still cannot resolve it from my windows box.

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Ubuntu Servers :: Possible To Change Hostname Of Machine In GUI

Nov 27, 2010

I have a problem with server bcs of the machine name. I'm wondering how to change the server name to it's IP. bcs now it has name "chrochne". I've found hostname in /etc/host and in /etc/hostname. But I'm afraid of changing it in this files. I'm using webmin and virtualmin to admin the server so can I change the name somewhere in the GUI?

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Ubuntu Servers :: Unable To Resolve Host / Hostname Is Set To (none)?

May 25, 2010

I just built out an Ubuntu Server 10.04.

My problem is setting the hostname. I cloned the machine, then normally on the clone, I would change the /etc/hostname and /etc/hosts file.


However, when I do this, upon restart, I get the message, "init hostname main process (some process number) terminated with status 1"Then, when the machine finally boots, the hostname is set to (none). Literally has braces like: user@(none):

I've tried: sudo hostname machine_name but it says can't resolve hostname (none).

I've Google'd around a lot but can't get it. It may have something to do with 10.04? I have been using 9.04, 9.10 with no problems.

eric@(none):~$ cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
code....

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Ubuntu Servers :: Hosts And Hostname Resetting At Reboot?

Jul 13, 2010

I'm facing bit of a conundrum with my new server. It is essentially a distributed-virtual Plesk Virtuoso container with a rather simple LAMP setup (PHP5 etc) and virtual hosting. Running 10.04 LTS.

The issue is that on each reboot, the /etc/hosts and /etc/hostname files are reset with their original configs causing the virtual hosting to break, i.e. rather than hosting the vhosts correctly, it essentially routes all traffic to /var/www, or essentially 000-default ~ this beats the whole point of vhosting in the first place!

Is there any way to get around them being overwritten at boot? A very crude workaround would be to set a script to load at boot via init.d and have it rewrite both files to their correct configs - of course, I have no idea as to the point during boot at which they get replaced.

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Ubuntu Servers :: No Ip Address Specified And Hostname Not Found Boot?

Oct 21, 2010

I have a ubuntu server 10.04 that will not boot. I saysno ip address specified and hostname not found refer to mount cifs blah blah blahmountall mount /directory/share [863] terminate with status 32I know its because I had a share mounted at boot but the server cannot mount the share for some reason. is there a way around this so I can boot the machine.I can ping the server. I just cant ssh to it. I need to get to a prompt some how so I can remove the mount from fstab.

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General :: Ubuntu 9.10 Networking Hostname / Can Ping The Linux Box Using Its Hostname From A WinXp. But Cannot Do The Reverse?

Jan 3, 2010

I have a network of 2 WinXP machines and one linux box. I have fiddled around with the settings as you do when learning. The network is working. The network neighbourhood on the WinXP machines recognise the linux box and vice versa, (the linux Places|Network recognises the 2 WinXP). I can Ping the linux box using its hostname from a WinXp. But I cannot do the reverse. I get an 'unknown host' response. I can ping the linux to itself using its hostname.

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Ubuntu Servers :: 9.10 - Using Bind9 As DNS Server On LAN - Does Not Seem To Translate Its Own Hostname Correctly

Sep 8, 2010

Im using bind9 as DNS server on my LAN, but it does not seem to translate its own hostname correctly for some reason. Other hosts is translated correctly, the problem only seems to apply to the DNS host itself. if i "ping <server_hostname>" from the server, it translates correctly. But if i "ping <server_hostname>" from the client it only says "unknown host" The client has the correct DNS-server assigned. How can i start troubleshooting this?

[Code]...

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Ubuntu Servers :: Upgraded From Server 9.04 To 10.04 And In The Process My Hostname Was Lost

Dec 8, 2010

Just upgraded from Ubuntu Server 9.04 to 10.04 and in the process my hostname was lost.

Code:

Although configure file looks fine:

Code:

The following lines are desirable for IPv6 capable hosts

Have set hostname with:

Code:

But doing it this way you cant use '_' ..

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