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; Sample stunnel configuration file for Unix by Michal Trojnara 2002-2012
; Some options used here may be inadequate for your particular configuration
; This sample file does *not* represent stunnel.conf defaults
; Please consult the manual for detailed description of available options
; **************************************************************************
; * Global options *
; **************************************************************************
; A copy of some devices and system files is needed within the chroot jail
; Chroot conflicts with configuration file reload and many other features
; Remember also to update the logrotate configuration.
;chroot = /var/lib/stunnel4/
; Chroot jail can be escaped if setuid option is not used
setuid = stunnel4
setgid = stunnel4
; PID is created inside the chroot jail
pid = /var/run/stunnel4/stunnel4.pid
; Debugging stuff (may useful for troubleshooting)
debug = 4
;output = /var/log/stunnel4/stunnel.log
; **************************************************************************
; * Service defaults may also be specified in individual service sections *
; **************************************************************************
; Certificate/key is needed in server mode and optional in client mode
;cert = /etc/stunnel/mail.pem
;key = /etc/stunnel/mail.pem
client = yes
socket = a:SO_BINDTODEVICE=lo
; Some performance tunings
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
; Authentication stuff needs to be configured to prevent MITM attacks
verify = 4
; Disable support for insecure SSLv2 protocol
options = NO_SSLv2
; Workaround for Eudora bug
;options = DONT_INSERT_EMPTY_FRAGMENTS
; These options provide additional security at some performance degradation
;options = SINGLE_ECDH_USE
;options = SINGLE_DH_USE
; **************************************************************************
; * Service definitions (remove all services for inetd mode) *
; **************************************************************************
[imaps]
accept = localhost:993
connect = imap.fripost.org:993
CAfile = /etc/stunnel/certs/imap.fripost.org.pem
options = NO_SSLv3
ciphers = ECDH+AES:DH+AES
; vim:ft=dosini
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