I'm trying to setup Zimbra so that it has an automatic fallover. The ideas is that two Zimbra servers will be running and if one fails there will be little to 0 downtime as the other will either be already routing emails to the client or start routing when the first fails.
I would have to assure that email is being sent to both servers so that there is no lose of data. Because of this I can't have both servers added the client because everyone would end up having two copies of every email.
Is there an easy way to do this or has anyone done this before?
warm standy not currently possible, this would have to be done at the VMware/OS layer.
Related
I have done a ldap init on multiple servers (failover), now using ldap_search_ext_s returns me the users, which were found. So far so good.
The ldap_search_ext_s does the failover automatically, so I cannot tell the users were found at server A or B.
Is there a way to get in the ldap_search_ext_s response the server where the user was found?
Many thanks in advance
AFAIK, what you're asking is not possible. And it shouldn't matter, the servers should be identical replicas.
Beginner in Beanstalkd here. I have a hosted Beanstalkd server elsewhere with the following URL : http://beanstalkdhost:1234/here.
Questions:
- How would I be able to view the lists of tubes/jobs available? Note that this server is not hosted by me.
How do I put jobs into the tubes of this server, when specs says it requires a POST and custom headers for a request. The clients (in NodeJS) I have came across over the Internet at the moment, do not allow for custom headers, and also almost always requires a 'port number' parameter which messes up the whole URL. It will end up as 'http://beanstalkdhost:1234/here:1234'.
Do note that I am also running a Windows machine (I believe there might be some limitations).
Will appreciate if I can get some advice.
Thanks in advance!
Beanstalkd is not a webservice. It does not present as a web-URL, but as a TCP socket that a connection is opened to, and bytes are sent to.
Knowing who is running the server for you might help out a lot in assisting you, but it does not appear to be a standard Beanstalkd queue.
I've been trying to figure this out for a couple days now. I've got a little linux box that should send email alerts and I need to test this functionality. It's a very, very basic linux box (painfully so).
Is it possible to setup a fake SMTP server on my desktop (IP:192.168.0.20) that it (192.168.0.2) can send emails to? I need to confirm that the messages are correct in content, but that's all. I'm perfectly fine having this spit out to the terminal. There's no DNS on the local network, or DHCP, I'm just using static IP addresses so it needs to work within that limitation.
I've been able to confirm with wireshark that the embedded computer is trying to do something over SMTP, but I don't see any message content at all, looks like it's just trying to talk to the server. I've also tried sending a message using "mail" but I keep getting an "SMTPclient: agent: unknown host" error, which I assume means it can't find the SMTP server I'm telling it to find.
I'm using Ubuntu 14.04 on my desktop.
Thanks!
So, as a basic test it works to just have an SMTP server running on your local machine. Installing Postfix should be all that's required. I set up the relay to our local mailserver but it wouldn't relay through. From the error messages I was getting I gather this is a DNS issue, it can't resolve where to direct the message. Watching wireshark you should be able to see the traffic and the attempt to send the message, which is something I guess. I will update when I have a better answer.
we are using ELB to Load balance between two NODEJS server.
Suddenly yesterday the service has started to recieve errors while i have two servers under the ELB.
when removing one of the servers and staying with only one server the service is working fine.
i don't have any log of traffic direction between the the servers and it seems that the system works fine with one server (no matter which one of them) and doesn't work with more than one server.
Any suggestions what should we check ?
10x!
I have an IIS7 web server at Rackspace that is being utilized/attacked in some manner to send SPAM. I have run several variations of anti-virus and malware software on the server and cleaned anything found, but it is still happening.
I'm leaning towards some kind of web form attack, but there are several sites on this server and I didn't create all of them, so figuring out what form(s) is being used (or even where they all are) is proving challenging.
Does anyone know of any solution to pinpoint what script(s) might be firing off these emails? Is there any way to monitor the SMTP service with more information? I've looked at SMTP logs, but all I see are things like:
2014-02-14 06:00:52 127.0.0.1 [---server info, etc---] SMTPSVC1 [-compname-] 127.0.0.1 0 MAIL - +FROM:<--------#-------------------> 250 0 56 43 0 SMTP - - - -
In fact, there are 19,608 in about a 16 hour period in this one log file I'm looking at. But unfortunately, this doesn't seem helpful.
If anyone could offer any insight, that'd be great!
If I had to guess, you have a webpage that has been compromised (which is what I think you suspect), and is being used to generate all the messages. The webpage probably accepts a FROM and a TO, without any validation.
If you start seeing these come in, as a test, start shutting off websites, until you see the attack stop.
Then, start the website back up, see if it continues. Then, I would start grepping that website location for files relating to email.
Most likely your server is configured to act as an email relay server, which allows anyone to send email that is in transit to your server for your server to send on (relay). Spammers do this to cover up the original origination point of the email.
The fix is to configure your server not to be a relay server. More background info here:
http://en.wikipedia.org/wiki/Open_mail_relay