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Jesús Ángel's questions

Martin Hope
Jesús Ángel
Asked: 2021-05-06 06:40:50 +0800 CST
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After a user is logged into Horde (v5.2.22), he is taken to the portal dashboard. I wonder if it is possible to automatically take logged users to the Imp application (webmail), so that they do not have to do a click to see their email messages.

This is the portal dashboard. If the user clicks on any of the mail panels, he goes to the webmail application.

Horde portal

And this is the webmail app (Imp), that is where I would like logged users would be taken after a successful log in:

Imp webmail

Best wishes,

horde imp
Martin Hope
Jesús Ángel
Asked: 2021-03-17 03:49:51 +0800 CST
  • 0

I am facing a weird behaviour while trying to connect to a HTTPS server. I have a PHP SOAP Client which runs throught Apache2 that can not connect to the server:

10:15:19.871149 IP 1.1.1.1.57038 > 2.2.2.2.https: Flags [S], seq 3019730905, win 29200, options [mss 1460,sackOK,TS val 2000430949 ecr 0,nop,wscale 7], length 0
10:15:19.878961 IP 2.2.2.2.https > 1.1.1.1.57038: Flags [S.], seq 1419811359, ack 3019730906, win 14480, options [mss 1460,sackOK,TS val 1379727760 ecr 2000430949,nop,wscale 7], length 0
10:15:19.879180 IP 1.1.1.1.57038 > 2.2.2.2.https: Flags [R], seq 3019730906, win 0, length 0

As you can see, the client is resetting the connection on receiving the SYN-ACK packet from the server.

However, I can connect to the server from that server using both telnet and wget. This is an example od traffic capture for a wget session:

10:14:49.320462 IP 1.1.1.1.56948 > 2.2.2.2.https: Flags [S], seq 2001951126, win 29200, options [mss 1460,sackOK,TS val 2000400398 ecr 0,nop,wscale 7], length 0 
10:14:49.329152 IP 2.2.2.2.https > 1.1.1.1.56948: Flags [S.], seq 3563908913, ack 2001951127, win 14480, options [mss 1460,sackOK,TS val 1379697210 ecr 2000400398,nop,wscale 7], length 0
10:14:49.329377 IP 1.1.1.1.56948 > 2.2.2.2.https: Flags [.], ack 1, win 229, options [nop,nop,TS val 2000400407 ecr 1379697210], length 0
10:14:49.331041 IP 1.1.1.1.56948 > 2.2.2.2.https: Flags [P.], seq 1:518, ack 1, win 229, options [nop,nop,TS val 2000400409 ecr 1379697210], length 517
10:14:49.339616 IP 2.2.2.2.https > 1.1.1.1.56948: Flags [.], ack 518, win 122, options [nop,nop,TS val 1379697220 ecr 2000400409], length 0
10:14:49.342199 IP 2.2.2.2.https > 1.1.1.1.56948: Flags [.], seq 1:2897, ack 518, win 122, options [nop,nop,TS val 1379697223 ecr 2000400409], length 2896
../..

I run the destination server (2.2.2.2), not the client one, but I can ask its admin to do some tests. I think they might have a firewall which is blocking the connection. Do you have any hints to solve this issue?

Update

The server is running CENTOS 8.

It has an IPTables firewall but I don't think that would be the problem. I have asked whether there is an upstream firewall.

I can't try the soap client throught php-cli, but I ran this code throught the web server and with php-cli and the first failed but the last worked:

<?php
$wsdl = '';
if ( $fd = fopen('https://myservice.mydomain.com/soap/v2/?wsdl', 'r') ) {
        while ( !feof( $fd ) ) {
                $wsdl .= fread($fd, 1024);
        }
        fclose( $fd );
}
echo $wsdl;

I feel it could be a problem with some security module or with web server permissions.

Regards,

tcp
Martin Hope
Jesús Ángel
Asked: 2020-10-08 06:32:44 +0800 CST
  • 0

I set up an exim server in a Debian 10 container with LXD and then created a proxy device to map the SMTP port from the host to the container:

lxc config device add mycontainer myport25 proxy listen=tcp:x.x.x.x:25 connect=tcp:127.0.0.1:25

where x.x.x.x is the host's public IP.

The port forwarding is working fine but, as I expected, the exim logs are showing the local IP instead of the remote servers ones. For example:

2020-10-07 13:45:40 1kQ7t6-0008P1-3M <= [email protected] H=localhost (server.remote.domain.com) [127.0.0.1] P=esmtps X=TLS1.0:RSA_AES_256_CBC_SHA1:256 CV=no S=14259 [email protected]

2020-10-07 13:45:40 1kQ7t6-0008P1-3M => |/usr/local/bin/script.php [email protected] R=myrouter T=myrouter_pipe 2020-10-07 13:45:40 1kQ7t6-0008P1-3M Completed

Is it possible to get exim to show in the logs the forwarded IP instead of 127.0.0.1?

I read https://www.exim.org/exim-html-current/doc/html/spec_html/ch-proxies.html but if I use the hosts_proxy option, my server rejects incoming emails with this error: "503 Command refused, required Proxy negotiation failed".

I know I can forward the port using plain iptables in the host and the private IP of the container but I wonder if I can do it using the proxy feature of LXD.

Regards,

proxy exim lxd