[CentOS] cyrus: socket options

hw
Sat, 17 Mar 2018 11:26:30 -0000

On 03/16/2018 08:14 PM, Alexander Dalloz wrote:
> Am 16.03.2018 um 13:07 schrieb hw:
>>
>> Hi,
>>
>> what are the following messages supposed to tell me and does this
>> indicate a problem?
>>
>>
>> # systemctl status cyrus-imapd
>> [...]
>> master[3766]: unable to setsocketopt(IP_TOS): Operation not supported
>> master[3766]: unable to setsocketopt(IP_TOS): Operation not supported
>> [...]
>
> That's cyrus-imapd itself failing and has nothing to do with Exim.

Well, it probably means that a socket option can not be set.  That can
mean that the socket can not be used at all or that the socket can be
used just not as well.

That socket option makes it so that the TOS bit on all packets is being
set.  I don?t see how that would be required here, so maybe the socket
works nonetheless.

>> Exim says it can not connect to the lmtp socket even when selinux
>> doesn?t get in the way.? The configuration looks like this:
>>
>>
>> cyrus.conf (none of the two options work):
>>
>> [...]
>> ?? # lmtp??????????????? cmd="lmtpd -a"
listen="lmtp:127.0.0.1" prefork=4
>> ?? lmtpunix????? cmd="lmtpd -a"
listen="/var/lib/imap/socket/lmtp"
>> prefork=4
>> [...]
>
> Providing just a snipped from the complete configuration of cyrus-imapd
> is insufficient.

It?s currently this:


# standard standalone server implementation



START {
   # do not delete this entry!


   recover       cmd="ctl_cyrusdb -r"

   # this is only necessary if using idled for IMAP IDLE


   idled         cmd="idled"
}

# UNIX sockets start with a slash and are put into /var/lib/imap/sockets


SERVICES {
   # add or remove based on preferences


   # imap                cmd="imapd" listen="127.0.0.1:imap"
prefork=2


   imaps         cmd="imapd -s" listen="imaps" prefork=1
   # pop3                cmd="pop3d" listen="pop3" prefork=3


   # pop3s               cmd="pop3d -s" listen="pop3s"
prefork=1


   sieve cmd="timsieved" listen="gupta:sieve" prefork=0
   # managesieve cmd="timsieved" listen="gupta:sieve"
prefork=0


   # sieve               cmd="timsieved" listen="4190"
prefork=1



   # these are only necessary if receiving/exporting usenet via NNTP


   #  nntp               cmd="nntpd" listen="nntp" prefork=3


   #  nntps              cmd="nntpd -s" listen="nntps"
prefork=1



   # at least one LMTP is required for delivery


   lmtp          cmd="lmtpd -a" listen="lmtp" prefork=1
   # lmtpunix    cmd="lmtpd -a"
listen="/var/lib/imap/socket/lmtp"
prefork=1


   # this is only necessary if using notifications


   notify        cmd="notifyd"
listen="/var/lib/imap/socket/notify"
proto="udp" prefork=1
}

EVENTS {
   # this is required


   checkpoint    cmd="ctl_cyrusdb -c" period=30

   # this is only necessary if using duplicate delivery suppression,


   # Sieve or NNTP


   delprune      cmd="cyr_expire -E 3" at=0400

   # this is only necessary if caching TLS sessions


   tlsprune      cmd="tls_prune" at=0400
}


Apparently exim can not use the lmtp socket because of a permissions
problem.  Not using the socket works except that timsieved appears not
to be able to find any authentication mechanics.  I can connect to it
but not authenticate:


# sivtest -u hw -v gupta
S: "IMPLEMENTATION" "Cyrus timsieved
v2.4.17-Fedora-RPM-2.4.17-13.el7"
S: "SIEVE" "comparator-i;ascii-numeric fileinto reject vacation
imapflags notify envelope relational regex subaddress copy"
S: "STARTTLS"
S: "UNAUTHENTICATE"
S: OK
Authentication failed. generic failure
Security strength factor: 0
logout
OK "Logout Complete"
Connection closed.


I didn?t get to figure this out yet.

>
>> exim.conf:
>>
>> [...]
>> begin transports
>>
>>
>>
>> # cyrus_ltcp:
>> #?? driver = smtp
>> #?? protocol = lmtp
>> #?? delivery_date_add
>> #?? envelope_to_add
>> #?? return_path_add
>> #?? hosts = localhost
>> #?? allow_localhost
>>
>> lmtp_socket:
>> ?? driver = lmtp
>> ?? socket = /var/lib/imap/socket/lmtp
>> ?? delivery_date_add
>> ?? envelope_to_add
>> ?? return_path_add
>>
>>
>> # ls -la /var/lib/imap/socket/lmtp
>> srwxrwxrwx. 1 root root 0 Mar 16 12:58 /var/lib/imap/socket/lmtp
>>
>>
>> I have this working on the old server (which doesn?t run Centos) and
>> am trying to migrate it to the new one (which runs Centos 7.4).? The
>> version of cyrus and sasl are the same on both machines.
>
> So cyrus-imapd and cyrus-sasl are not the ones shipped by CentOS?

They are from packages installed by yum and just happen to be the same
versions as on the old server.  I can?t tell if the same compiling
options were used, though.

>> What?s the problem with Centos that these things don?t just work as
>> they usually do?
>
> It works on CentOS, I can assure you that.

Hopefully so ...

> Alexander
>
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos