Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [sasl]

The tag has no usage guidance.

2
votes
0answers
205 views

Warning in the logs of Postfix: “restriction NNN ignored: no SASL support”. But it does have SASL support

I have postfix + dovecot + pgsql. All has been working. Recently I've changed something in the config to combat spam. Now I see this in the logs: localhost postfix/smtpd[2299]: warning: restriction `...
1
vote
3answers
401 views

How is sendmail SMTP authentication logging controlled?

I get a ton of failed SMTP login attempts. I'd really like to defend against it, but the logging of those attempts is poor. I'm using sendmail 8.15, cyrus-sasl 2.1.26. The SASL setup is the simplest ...
0
votes
2answers
297 views

Postfix configuration issue with fips on centos 7; mailgun relay

I am trying to setup postfix to relay all mail generated on the local machine via SMTP to a mailgun relay. I have used the mailgun relay before with success on an ubuntu server, but I am migrating to ...
1
vote
0answers
573 views

SASL Authentication failure

Created an user with # adduser username The configuration file /etc/sysconfig/saslauthd: # Directory in which to place saslauthd's listening socket, pid file, and so # on. This directory must ...
1
vote
1answer
336 views

Cannot connect to SMTP server [closed]

I'm unable to establish a connection to my server's SMTP server, it gets closed immediately. telnet x.x.x.x 25 Trying x.x.x.x... Connected to xxxxxx.xxx. Escape character is '^]'. Connection closed ...
0
votes
1answer
2k views

Dovecot not listening on imap and pop3 ports

Before I continue, I have looked at tons of posts online about saying that the protocols are not setup, and have tried what they have offered, but all of them do not help, and don't seem to resolve ...
1
vote
1answer
605 views

SASL authentication failure: client response doesn't match what we generated

The following tutorial has been used to setup a virtual mail server: How to set up a mail server on a GNU / Linux system Everything works fine, though every time a message is being sent the ...
0
votes
2answers
864 views

postfix & cyrus-SASL SASLDB2 0: NO “authentication failed”

We are setting up a Postfix mail relay to accept only authenticated smtp sessions and forward them to our backend smarthosts. CentOS 6.8 postfix-2.6.6-6.el6_7.1.x86_64 cyrus-sasl-lib-2.1.23-15.el6_6....
1
vote
1answer
1k views

Postfix + dovecot, disable authentication on port 25

I use postfix 2.9.6 on ubuntu 12.04 (with dovecot if that matters). I'm trying to disable auth on port 25 and only allow it on port 587, so that I can receive mails normally from other servers but ...
1
vote
1answer
2k views

Enabling SASL authentication mechanisms in openLDAP using OLC

All of the information that I have been able to find about enabling SASL mechanisms for openldap still use the slapd.conf method while all modern LDAP directories have elected to use OLC over a static ...
1
vote
1answer
758 views

Postfix using a RESTful API for authentication

Is it possible to connect Postfix to a RESTful API to validate password/username? What I imagine an ideal scenario is if Postfix handled the LOGIN or PLAIN methods (behind TLS only, but that is ...
0
votes
1answer
64 views

Does default postfix installation support ssl and sasl2 Linux Mint (Ubuntu)

I am trying to setup a postfix mail server locally only to send mails on Linux Mint 16. I was successfully able to send mails to non TLS MTA, but not to gmail. Later I found that I need to configure ...
1
vote
1answer
4k views

testsaslauthd succeeds but sasl-sample-server/client fail

I try to set up saslauthd for the XMPP server prosody but got stuck somewhere. I used the following documentation: http://blogs.mafia-server.net/nur-bahnhof/2013/12/prosody-authentification-...
1
vote
0answers
876 views

Authentication failure with postfix and sasl using sasldb

I'm really not sure what my issue is. I've checked several guides, and I am sure I have set this up correctly, including config fails, restarting the service, permissions etc. OS is Ubuntu Server. ...
0
votes
1answer
1k views

sendmail smtp auth simple,why fail auth?

On sendmail i did this for smtp auth sasl is running root 1609 1 0 05:16 ? 00:00:00 /usr/sbin/saslauthd -a pam -c -m /var/run/saslauthd -n 5 root 1610 1609 0 05:16 ? 00:...
2
votes
0answers
845 views

Postfix SMTP client won't authenticate with AUTH LOGIN

Log extract: 127.0.0.1[127.0.0.1]:11127: 250-AUTH LOGIN PLAIN maps_find: smtp_sasl_passwd: hash:/etc/postfix/sasl_passwd(0,lock|fold_fix): [127.0.0.1]:11127 = XXXX smtp_sasl_passwd_lookup: host `127....
1
vote
0answers
141 views

IMAP login not recognizing SASL while simple postfix send is

I've got SASLAuthd working (via LDAP), and am also successfully able to telnet via port 25 with my LDAP credentials. Postfix is configured with Dovecot. All 3 services are running fine (Postfix, ...
0
votes
1answer
2k views

Ubuntu Postfix Open LDAP integration - no SASL authentication mechanisms

Ive followed all the steps in https://help.ubuntu.com/community/Postfix/DovecotLDAP but I am getting a localhost postfix/smtpd[12520]: fatal: no SASL authentication mechanisms in my /var/log/...
0
votes
1answer
200 views

SASL authentication fails when called from crontab

When I run mbsync from the command line it works fine. But if mbsync is run from the crontab, mbsync fails with this error "Error: SASL(-1): generic failure:". My guess is that mbsync's SASL ...
3
votes
2answers
2k views

Why doesn't Postfix reject a specific client's connection attempts?

My SMTP server is being probed. It looks like a brute force attach on SASL, where they're going through a password dictionary. Having seen thousands of these lines in the log files Sep 18 14:09:52 ...
11
votes
1answer
25k views

Postfix: disable authentication through port 25

When using Postfix and IMAP on a mailserver, at least 3 ports are usually opened 25 smtp : incoming emails from anybody (whole internet) 465 smtps : outgoing emails from authorized users (to the ...
2
votes
1answer
1k views

zpool status hangs forever

Openindiana oi_151a7. zpool with 15x 1TB raidz3 + 2x 8 disk 2TB raidz2. Many disk operations such as zpool status, creating a new iscsi volume (using sbdadm) etc hangs. Using iostat (-xne) I can ...
1
vote
1answer
906 views

SVN failing to create SASL context

Trying to execute the command svn log svn://[my server address]/path/to/repository nets me the following: svn: E170001: Unable to connect to a repository at URL 'svn://[my server address]/path/to/...
3
votes
3answers
2k views

Appending a pem to another

I found a blog that helped me relay postfix through smtp.gmail.com with SASL authentication. One of the steps was: cat /etc/ssl/certs/Thawte_Premium_Server_CA.pem | \ sudo tee -a /etc/...
2
votes
1answer
544 views

SSH Authentication Mechanism

Doing a personal research project and I'm wondering: Why does SSH do its own mechanism negotiation rather than use SASL? At first I thought it might be to ensure confidentiality of the whole session, ...