I use php to send newsletter via sendmail.outgoing emails work as needed.I defined a .forward file to get responses in my regular email account.If I use mailx to send emails from root account to my own account, it gets forwarded as needed.If I try to send from outside the box to news@domain.com the email is not received in the box and the sender does not receive an error message.
I am sure I missed something.How do I enable incoming emails?
Well I want my sendmail to pipe all users' incoming emails to /dev/null ... I just don't want to accept emails. Every user that exist on the system currently or will be made in future, I want their incoming emails to them to be piped to /dev/null .... I just want those users to be able to send emails.
I have a server on CentOS 5.And I would like to set up an automatic forward so that every incoming message of a specified user gets forwarded to a specified email (my gmail account).In your opinion, what is the simplest solution ?
I have a server with a domain running and im trying to resolve the mail server but i can't see where to start. I use OpenSuse 11.2. Basically, for starting, i want postfix to send incoming emails to a php script or perl. for outgoing emails i guess that i could use php mail function and i will see what else to have. I configured the dns. I do a dig.mydomain.tld MX and i get the following:
I want to read my emails locally using Evolution & Thunderbird or some other mail client. I have bought a new domain and would want incoming emails sent to this domain ids to be scanned by a virus scanner & spam filter.I have read that MailScanner + SpamAssasin is a good combination/option. Are there any others for my requirement.I am not a Linux/Ubuntu expert - so a detailed step by step tutorial to set this up is what i am looking for.I am using Ubuntu 10.04 home user.
I'm looking for a smtp solution that will split all incoming emails and send them to two different servers.
On mail server 1 I have test@example.com Om mail server 2 (different location than mail server 1) I also have test@example.com
MX-record for example.com should point to mail server 3. Of course there will be a mail server 4 that will do the same as mail server 3. Mail server 3 will receive all incoming mails and forward them to both mail server 1 and 2. This will be a simple and cheap but bullet proof redundancy solution. I'm interested in this solution, have already looked into clusters, backup mx, imap-sync and a ton more of solutions but this is the solution we want. ny one who can point me in the right direction? I've been searching for weeks, the solution exist but I can't find out how to set it up. Not all mail should be forwarded this way, only one example.com, not example2.com or example3.com.
I have recently started working on our server. My knowledge about *nix systems is very limited, so I turn to the oh-so-friendly internet community for help.The server is running Debian Etch, postfix, courier and some other stuff. And suddenly out of the blue the emails from the internet are not being received. Emails being sent internally are being received and everyone can browse the internet.Host or domain name not found. Name service error for na$for name=xxx.xxx.xx.xx.list.dsbl.org type=A: Host not found, try again.Does anyone have any experience with something like this? I would love to get this thing fixed.
I have a server that I can only access via SSH (it's located far away) and I would like to secure it by blocking all ports except the ones that I need (which are HTTP and SSH). I still want to be able to make outgoing connections to enable software updates and other things.This is my iptables -L -n :
Code: Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:1:21 DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:23:79 DROP tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:81:65535 code....
In my opinion, this should block all incoming packets except the ones on port 80 and 22, but allow responses to outgoing connections. But a wget http://google.com does not work, it can't establish the connection.
Maybe this is not the best style for iptables rules, but I want to be absolutely sure to not accidently lock myself out from SSH, so I chose not to configure a "block-everything rule".
Does this configuration not enable incoming packets from connections initiated from inside?
i have a mail server that uses Postfix as a mail server, it runs ok, but i need to add some features to a specific users only.what i need to add is Auto-reply message for some users only.
How could we bcc all outgoing / incoming email through my Sendmail (8.14) Server? I tried this /etc/procmailrc :0c ! backupmail@domain.com But this get looped and backupmail received multiple emails of each for domain.com while sending locally from one user to another user.
I want to allow 100 incoming connections to my linux server running smtp. I know that tcpserver -c will set the limit of allowed incoming connections, but how can I tell what the currently set limit is?
I installed a new server running CentOS 5.2. I have iptables and SELinux off. The new server will not accept incoming mail. It will send out fine.Our mail server redirects mail for it.help to it.[url]...- [url]....is this server. Any messages sent to this address get stuck in a deferred queue. The error message on each one (from the mail server admin console) is "connection to[url]... [10.9.10.202] - connection refused". I can ping [url].... from the mail server.
This seems like a firewall issue, but it is off. Is there some configuration file I need to change to allow incoming mail? Or is there some test I can run on the new server to further troubleshoot what is going on
We have a cisco ASA firewall at work,which redirects all http traffic to our webserver. We have to install a new website ,but it can't be installed to the same server. Setting up a squid reverse proxy can redirect the incoming http requests to the appropriate webserver? If yes, could I get some directions on howto?
Could it be the IMAP file is corrupt?I have set up mail server on Centos to receive via dovecot.One of my user accounts (A single account out of a hundred)cannot receive their mails.
I am newbie to postfix. I added a new domain to my postfix server in the main.cf under mydestinations variable and the relay_domains file. Also, added this domain to my backend exchange server. When I send a test message from the new domain, my messages from that domain appear to be stuck in the "queue active". What does it mean when you are stuck in this queue? Does this mean that my backend email server (exchange 2003) isn't allowing messages from this new domain OR that the POSTFIX server still needs configuring.
I have set up a Virtual machine on a dedicated server from 1and1. I hoped to use a bridge to give the vm direct access to the internet but 1and1 do mac filtering and so the only option is to use NAT.
I used Virtual Machine Manager on my Ubuntu 10.04 machine at home to install Debain Lenny on the vm on the server using KVM and all went well. I put it on a virtual network 192.168.100.0 and i can access it from the host and i can access the internet from the guest using NAT that libvirt set-up.
I bought another ip address from 1and1 with the hope of forwarding packets to the new ip address 11.22.33.02 to the guest vm.
I have tried all sorts of routing rules using iptables without any success.
my virtual network is on virbr1 the guest ip is 192.168.100.50 my external network device is ip say 11.22.33.01 on eth0 with the secondary ip say 11.22.33.02 on eth0:1
Here are the latest rules i tried:
Quote:
iptables -t nat -A PREROUTING -d 11.22.33.02 -i eth0 -j DNAT --to-destination 192.168.100.50 iptables -t nat -A POSTROUTING -s 192.168.100.50 -o eth0 -j SNAT --to-source 11.22.33.02 iptables -A FORWARD -p tcp -i eth0 -o virbr1 -d 192.168.100.50 -m state --state NEW -j ACCEPT iptables -A FORWARD -t filter -i eth0 -m state --state ESTABLISHED,RELATED -j ACCEPT
I have a bunch of Ubuntu boxes on one subnet, 192.168.1.0. I have a Windows 7 box on another subnet, 192.168.2.0. I am able to ping and SSH to all servers on the .1 subnet except for one server, which I will call PITA. I will attempt to SSH to PITA, and it won't respond, nor does it respond to pings. I will the SSH to PITA from another of the test servers, successfully connect, and then when I SSH from my Windows 7 machine I can connect successfully. If I first connect via console to PITA and send some pings out (to anywhere, like 4.2.2.2), I can also connect from my Windows 7 machine. I've never seen anything like this.
One of the weird things is that I used PITA to create an image that I then used to create many of the other test servers, and they work fine, so I'm not sure what the problem is. I've checked /var/log/messages and syslog and there's nothing in them that indicates a problem. I've rebooted this server, restarted SSH, changed the IP in case it was conflicting with something else, forced an ARP update in case it was cached (since I had bonded the interfaces), cleared the ARP cache on my own machine, verified Network Manager is not installed...and I still have this issue.
Here are some network-related config:
/etc/network/interfaces
Quote:
# 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
I have been trying to solve this problem for two days now looking at various forums and websites but can't really figure out what's going on here.I have setup postfix on my ubuntu and I can send emails using "telnet localhost 25" and the ehlo thingy. Apache can also send emails. My problem is with incoming emails. When I try to send an email (through Gmail) I get the following error message:
Code: Delivery to the following recipient has been delayed: root@example.com
I have set up an openvpn server on ubuntu via port tcp 443. The server use a public network and almost every ports are blocked (not 443) So when a client connect to the server, if it send traffic needing a blocked port, the connection cannot been etablished of course. So i d like to know if it is possible to redirect all incoming traffic on the server to an other unblocked port (like 443) to bypass firewall.
I dont think openvpn offer this possibility but maybe with linux it is possible..
As a part of migration I am proposing different scenarios to my organization. One which is asked to prepare is to configure multiple mail servers to handle incoming and outgoing mails. Say I have -[URL], I need to have accept mails from [URL] and send mail from [URL].
I want to use my CentOS-Server for logging incoming phone calls using an AVM Fritz-Card.It should also be possible to notify clients (Linux and Windows) on incoming calls, or there should at least be a web-frontend.Is there any software like that in the CentOS-Repository available?Or is there another software like that, that is easy to install? I already asked google (an i will go on), but I couldn't exactly find what I want.
I've a CentOS Box with no control panel.. I used to manage it via SSH. Any way, I've installed CSF/LFD on it.. and it seemed to be working just fine. The only problem I've encountered is that when I start and enable CSF, messages and emails keeps stocked in the mail queue.. I've double checked and made sure needed ports are opined.. But, I still have the problem.