I need to make an SMTP proxy. And I would like collect the communities thoughts on this.
Have you done this? If so: *What Linux flavor did you use? *What application? *Is there a how to?
I will be using SLES for the build. This will more than likely look like: Mail_server==>SMTP_proxy==>Firewall==>Internet==>Domain_mail_server
Well I am off to hit the
In order to have greater control over the emails sent out the company I imagined the following scenario.ScenarioDescribing in words what I need.ser sends an email to user@hotmail.com for example, using the smtp of my isp (is the internet).Before the email is sent, the firewall checks if the recipient is blocked transparent, if you are locked out rejects the email.I searched several forums and mailing lists, but did not find scenarios similar to mine.Where found situations in which the mail servers were internally in the company, which is not my case.
View 2 Replies View RelatedI'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.
the zypper calling aria2c download the file, but the speed is too slow, so, I want to use proxy.the aria2 is supported to use proxy ,but I cannot find where is the config file. I want to know how the zypper pass the parameter such as file name file target and anthor option when aria2 is calling by zypper
View 9 Replies View RelatedI made a simple proxy using netcat and it works great, the idea is to make the server and client communicate through two named pipes, file1, file2.
$ mknod file1 p
$ mknod file2 p
$ nc -l -p 12345 0<file1 1>file2 &
$ nc 192.168.2.118 80 1>file1 0<file2 &
The problem Im facing is that I cant seem to intercept the data going between the client and the server. I want to be able to have the data coming to the server in a variable, manipulate it and send it to the client, and the other way, have the data coming to the client in a variable, manipulate it and send it to the server.
Im running on an embedded device where tee, awk and many other commands are absent. how can I redirect the data to a variable, manipulate it and pass it to the other side, that is the question.
How to make squid proxy transparent?I have configured a Squid proxy server with some ACLs but we have to check from client side whether those ACLs work or not ,I have to open their firefox and manually enter my machine's i.e. proxy server's ip, only after entering this ip , Those ACLs work properly.But now I want to make it work without manually entering the proxy on clients machine.I guess transparent proxy is the solution, but how to configure it/Please guide me and I am one of the machine in LAN.
View 1 Replies View Relatedhttp_port 3128 transparent --> What does this mean? Is this a only thing we do to make Squid Proxy Transparent?
View 2 Replies View Relatedhow can i make thinstation as a proxy server
View 2 Replies View RelatedI have installed squid server.. but how can i make tranceparrent proxy?
View 1 Replies View Relatedi have the following ip assignments
fedora (iptables)
eth0 -private :192.168.1.1
eth1 -public : 186.117.50.6
squid proxy
192.168.1.10:3128
my clients range
192.168.2.0/24
how can i make my clients to browse internet only from proxy server my network is NAT 'ed. Please specify a iptable rule to allow internet access for my clients to browse ONLY if they come through proxy server.
I have a domain name registered in asianet.com, they provide email service also, can i use local mail server and registrar's smtp server at same time?
View 5 Replies View RelatedCode: Warning: fsockopen() [function.fsockopen]: SSL: Success in /var/www/krai/class.smtp.php on line 105
Warning: fsockopen() [function.fsockopen]: Failed to enable crypto in /var/www/krai/class.smtp.php on line 105
Warning: fsockopen() [function.fsockopen]: unable to connect to ssl://smtp.gmail.com:465 (Unknown error) in /var/www/krai/class.smtp.php on line 105
Those 3 errors popups when i chroot my webroot dir, without chrooting it works fine and email is send.
I want to make a transparent squid proxy server in centos. The squid proxy version is 2.6 stable. I made a normal squid server but want to make it transparent so that users do not need to enter the proxy settings in web browser. Even i searched about this on google but not getting it properly.I have two lan cards on centos system. ETH1 used for LAN and ETH2 used for WAN. And in this squid.conf i written "http_port 172.16.31.1:3128 transparent" and i also added a rule in iptables which is "iptables -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j REDIRECT --to-port 3128" but still i have to enter proxy settings at client's web browser to use internet
View 4 Replies View RelatedI've been trying to make myself anonymous, but I cant find 'Tor' anywhere, tried 'yum & kpackagekit' neither have it. I did find 'Privoxy', installed it, set proxy for HTTP and HTTPS in Firefox, but it says 'unknown proxy' when I try to use it! I've been to the Privoxy web site and read through the 'User manual', but most of it is 'geek' to me!
View 8 Replies View RelatedCurrently my DHCP Server is working now what i want to have is auto detection of squid proxy in any browser but I still got an error in my dhcp server when I restart it.
My Config:
# DHCP configuration generated by Firestarter
ddns-update-style interim;
ignore client-updates;
[code]....
I am trying to set up my squid3 proxy as a transparent proxy - right now, I have to manually configure browsers to access via proxy. I understand that I have to put some rules into Iptables and also some further directives in the squid.conf.
I have a couple of specific questions. The proxy server is running on a Ubuntu 10.04 workstation and this machine also acts as a dhcp server for the network. I have just one subnet , namely 192.168.0.1-254 There is only 1 network card. Is it much easier to put in a second network card or is it just as easy to configure the existing lan card as a dual IP?
Is it necessary to configure these 2 IP's ( whether they are via 2 lan cards or dual IP on single card ) to be on different subnets. i.e ETH0 192.168.0.1 and ETH1 192.168.1.1 or is ok to have something like ETH0 192.168.0.1 and ETH1 192.168.0.254 ( where ETH0 is the one facing the LAN and ETH1 points to the modem router / switch i.e The Internet ) Where specifically do I save the Iptables rule configuration file and what must I call it ?
I've been doing some security testing in a lab environment that does not have direct internet access. It's actually a little complicated: From home to connect to my lab machine, I
1. SSH to machineA.
2. SSH from machineA to machineB
where machineB is my actual lab machine. neither machineA or machineB allow anything other than SSH, and machineB is only accessible from machineA. However, I really need to run yum on machineB. I have managed to get internet access via Firefox on machineB by creating a series of SOCKS proxy via SSH.
1. machineB: ssh -L 12345:localhost:12345 user@machineA
2. machineA: ssh -D 12345 user@machineC
3. machineB: configure firefox to use socks proxy, localhost, 12345
where machineC has internet without limits placed. This is the only way I have managed to get internet working. I tried using ssh -L all the way from machineB->machineA->machineC but it didn't work (even when setting Firefox to use http proxy). I tried using ssh -D all the way, but again that doesn't work either.
I do have access via Firefox using socks proxy. However, yum update fails to retrieve mirror list, and from what I have found I don't believe yum supports socks proxy directly. Instead, it uses http_proxy / ftp_proxy. how to get yum to go out over the SOCKS proxy I created (same one using in Firefox)? It seems like since Firefox can access the internet and everything without issues, i should be able to get yum to tunnel through the same connection to access everything.... I tried
[URL]
is there a way to force wget to use a specific squid proxy when making connections ? - I use a squid proxy normally, but I need this specific request to go via a different one. I dont have to use wget, I just need a way to test squid's blocking rules by requesting various pages through it, this proxy is not my normally proxy on the network and so I cant rely on wget taking the environment variable.
Also, this is as part of a script, so anything that avoids editing wget config files would be best. - Perhaps curl can do this ? - currently im using the exit code of wget to determine if the connection was made.
I am working on fc10. I connect to internet using two connections: with proxy and without proxy. Initially I had some problem in configuring yum for proxy and I resolved it by creating files proxy.sh and proxy.csh in /etc/profile.d with the required details (export_proxy).Now when I connect to my connection without proxy I have some problems .Whenever I try to do yum update I get the following error:
"[URL]: [Errno 12] Timeout: <urlopen error timed out> Trying other mirror. Error: failure: repodata/primary.xml.gz from adobe-linux-i386: [Errno 256] No more mirrors to try." what changes do I need to make in order to use yum in the connection without proxy?
At the moment I have a proxy and all the users have to configure it in the browser to access internet. I want to make the users able to browse even without configuring the proxy in the browser. but eventually it should be received in the proxy rather than giving an error to the user. I heard with transparent proxy I can redirect all the traffic from a particular network, to a particular host( ie my existing proxy).
I tried this using firewall rules. But then the existing proxy doesn't understand the protocol of the requests. I heard that it should be in the kind of proxy protocol.
is that my isp's smtp service is very poorso i want to configure my own smtp servr for my internal clients only for sending emails not receivingi have static ip on my router with 25 port forward i have configure sendmail on linux its working fine on local network mean its sending email on local domainnow i want to send emails on other external domains with my public ipMean user of mydomain.com should be able to send emails on all internet domains like yahoo.com, hotmail.com etc
View 8 Replies View RelatedI've setup squid proxy st time on centos 5.This is my current setup.squid.conf:Quote:acl our_networks src 192.168.10.0/24 ttp_access allow our_networksQuote:
internet -- modem -- Firewall --switch--squid proxy (192.168.10.100)
--client workstation ((192.168.10.200)
(client workstation is connected to the same switch as the squid proxy)
[code]...
I am getting an error as below.
How do I resolve the error: make[2]: *** No rule to make target `', needed by `mpg123'.
How can I resolve this error.
I've installed pop-before-smtp in my mail server(iredmail). configure the $pat to read the pattern of my Dovecot file. Dovecote log file is like this:
Code:
2011-05-14 14:01:21 pop3-login: Info: Login: user=<test@example.com>, method=PLAIN, rip=180.234.45.133, lip=66.165.162.157
2011-05-14 14:01:22 POP3(test@example.com): Info: Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
2011-05-14 14:01:52 pop3-login: Info: Login: user=<test@example.com>,
[Code]....
How can I verify if TLS is working for SMTP? I can see when I connect to Dovecot via IMAP4, a TLS session is present but I don't know to configure TLS for SMTP (sending messages).
View 5 Replies View RelatedI installed webmin + postfix + dovecot + sasl2-bin to get a webserver running. I have fixed all the problems, but there is still one. I am totally new to sasl, so I am sorry if I made a stupid mistake.
[Code]....
Thunderbird gives the following error when trying to send mail: Sending of message failed. The message could not be sent because the connection to the SMTP server mail.virovene.org was lost in the middle of the transaction. Try again later or contact your network administrator. mail.err Apr 28 23:33:18 virovene postfix/smtpd[6264]: fatal: no SASL authentication mechanisms
mutt-1.5.16-36 on opensuse 10.3 lacks SMTP support as shown in mutt -v ("-USE_SMTP"). Does anyone know which version of mutt would have it for opensuse 10.3 and where can I download it from? I don't want to compile from source or use an external program.
View 3 Replies View RelatedI was wondering that if its possible to send mail using my own localhost mail server, I guess I made the settings using yast2. I am not sure that I did right setup. And if I did setup my mail server correctly.
View 1 Replies View RelatedWhat is the simplest way I can get a secure, authenticated SMTP server running on my Linux machine so my family can use it to send mail from hostile networks?
Currently I have exim bound to 127.1:25 so if I can send mail from my laptop using ssh -L2525:localhost:25 wolever.net... But I'd like exim (or some other SMTP server) to bind to, eg, 0.0.0.0:2525 and accept authenticated SMTP connections.
I'm running Postfix primarily as a local email server. There is no email coming in from other machines, and there are no other machines using it to send mail. But I'd like it to be able to send mail. I use Evolution for my normal email stuff, and it's configured to send mail to my ISP's smtp server, and that's working fine. But I occasionally send mail from the command line, using the "mail" or "mutt" utilities. (Mutt because the standard mail doesn't support attachments.) These don't use Evolution's configuration, they depend upon whatever is listening to port 25 - and that's Postfix. So all I should need to do is to give Postfix the smtp server, user name, and password. My problem is that Postfix has voluminous documentation online, and I haven't been able to find this simple configuration in it.
View 3 Replies View Related
