Mercurial > dovecot > original-hg > dovecot-1.2
annotate dovecot-example.conf @ 614:e60620644af3 HEAD
login_process_per_connection = yes scales now better when multiple users are
trying to log in at the same time.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Sat, 16 Nov 2002 07:57:20 +0200 |
| parents | 1906116a62ce |
| children | 0d852af6842e |
| rev | line source |
|---|---|
| 0 | 1 ## Dovecot 1.0 configuration file |
| 2 | |
| 3 # Default values are shown after each value, it's not required to uncomment | |
| 435 | 4 # any of the lines. Exception to this are paths, they're just examples |
| 5 # with real defaults being based on configure options. The paths listed here | |
| 6 # are for configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var | |
| 0 | 7 |
| 8 # Port to listen in for IMAP connections. This port is used for TLS | |
| 9 # connections as well. Setting it to 0 disables it. | |
| 10 #imap_port = 143 | |
| 11 | |
| 12 # Port to listen in for SSL IMAP connections. Setting it to 0 disables it. | |
| 13 #imaps_port = 993 | |
| 14 | |
| 15 # IP or host address where to listen in for IMAP connections. Empty means to | |
| 16 # listen in all interfaces. It's not possible to specify multiple. | |
| 17 #imap_listen = | |
| 18 | |
| 19 # IP or host address where to listen in for SSL IMAP connections. Defaults | |
| 20 # to imap_listen if not specified. | |
| 21 #imaps_listen = | |
| 22 | |
| 519 | 23 # PEM encoded X.509 SSL/TLS certificate and private key. They're opened before |
|
518
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24 # dropping root privileges, so keep the key file unreadable by anyone but |
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25 # root. Note that these default paths here are absolute, configure options |
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26 # don't affect them. Use for example OpenSSL to generate these files. |
| 0 | 27 #ssl_cert_file = /etc/ssl/certs/imapd.pem |
| 28 #ssl_key_file = /etc/ssl/private/imapd.pem | |
| 29 | |
| 30 # Disable LOGIN command and all other plaintext authentications unless | |
| 31 # SSL/TLS is used (LOGINDISABLED capability) | |
| 32 #disable_plaintext_auth = no | |
| 33 | |
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34 # Use this logfile instead of syslog() |
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35 #log_path = |
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36 |
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37 # Prefix for each line written to log file. % codes are in strftime(3) |
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38 # format. Note the extra space at the end of line. |
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39 #log_timestamp = %b %d %H:%M:%S |
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40 |
| 0 | 41 ## |
| 42 ## Login process | |
| 43 ## | |
| 44 | |
| 45 # Executable location | |
| 46 #login_executable = /usr/lib/dovecot/imap-login | |
| 47 | |
| 48 # User to use for imap-login process | |
| 49 #login_user = imapd | |
| 50 | |
| 51 # Directory where imap-auth places authentication UNIX sockets which login | |
| 52 # needs to be able to connect to. The sockets are created when running as | |
| 53 # root, so you don't need to give imap-auth any access for it. | |
| 54 #login_dir = /var/run/dovecot/login | |
| 55 | |
| 435 | 56 # chroot imap-login process to the login_dir. Only reason not to do this |
| 0 | 57 # is if you wish to run the whole imapd without roots. |
| 58 #login_chroot = yes | |
| 59 | |
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60 # Should each login be processed in it's own process (yes), or should one |
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61 # login process be allowed to process multiple connections (no)? Yes is more |
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62 # secure, espcially with SSL/TLS enabled. No is faster since there's no need |
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63 # to create processes all the time. |
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64 #login_process_per_connection = yes |
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65 |
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66 # Number of imap-login processes to create. If login_process_per_user is |
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67 # yes, this is the number of extra processes waiting for users to log in. |
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68 #login_processes_count = 3 |
| 0 | 69 |
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70 # Maximum number of extra login processes to create. The extra process count |
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71 # usually stays at login_processes_count, but when multiple users start logging |
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72 # in at the same time more extra processes are created. To prevent fork-bombing |
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73 # we check only once in a second if new processes should be created - if all |
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74 # of them are used at the time, we double their amount until limit set by this |
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75 # setting is reached. This setting is used only if login_process_per_use is yes. |
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76 #login_max_processes_count = 128 |
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77 |
| 0 | 78 # Maximum number of connections allowed in login state. When this limit is |
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79 # reached, the oldest connections are dropped. If login_process_per_user |
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80 # is no, this is a per-process value, so the absolute maximum number of users |
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81 # logging in actually login_processes_count * max_logging_users. |
| 0 | 82 #max_logging_users = 256 |
| 83 | |
| 84 ## | |
| 85 ## IMAP process | |
| 86 ## | |
| 87 | |
| 88 # Executable location | |
| 89 #imap_executable = /usr/lib/dovecot/imap | |
| 90 | |
| 91 # Maximum number of running imap processes. When this limit is reached, | |
| 92 # new users aren't allowed to log in. | |
| 93 #max_imap_processes = 1024 | |
| 94 | |
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95 # Show more verbose process titles (in ps). Currently shows user name and |
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96 # IP address. Useful for seeing who are actually using the IMAP processes |
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97 # (eg. shared mailboxes or if same uid is used for multiple accounts). |
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98 #verbose_proctitle = no |
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99 |
| 0 | 100 # Valid UID/GID ranges for imap users, defaults to 500 and above. |
| 101 # Note that denying root logins is hardcoded to imap-master binary and | |
| 102 # can't be done even if first_valid_uid is set to 0. | |
| 103 #first_valid_uid = 500 | |
| 104 #last_valid_uid = 0 | |
| 105 | |
| 106 #first_valid_gid = 1 | |
| 107 #last_valid_gid = 0 | |
| 108 | |
| 109 # ':' separated list of directories under which chrooting is allowed for imap | |
| 110 # processes (ie. /var/mail will allow chrooting to /var/mail/foo/bar too). | |
| 111 # WARNING: Never add directories here which local users can modify, that | |
| 112 # may lead to root exploit. Usually this should be done only if you don't | |
| 113 # allow shell access for users. | |
| 114 #valid_chroot_dirs = | |
| 115 | |
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116 # Space-separated list of fields to cache for all mails. Currently these |
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117 # fields are allowed followed by a list of commands they speed up: |
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118 # |
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119 # Envelope - FETCH ENVELOPE and SEARCH FROM, TO, CC, BCC, SUBJECT, |
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120 # SENTBEFORE, SENTON, SENTSINCE, HEADER MESSAGE-ID, |
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121 # HEADER IN-REPLY-TO |
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122 # Body - FETCH BODY |
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123 # Bodystructure - FETCH BODY, BODYSTRUCTURE |
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124 # MessagePart - FETCH BODY[1.2.3] (ie. body parts), RFC822.SIZE, |
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125 # SEARCH SMALLER, LARGER, also speeds up BODY/BODYSTRUCTURE |
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126 # generation. This is always set with mbox mailboxes, and |
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127 # also default with Maildir. |
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128 # |
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129 # Different IMAP clients work in different ways, that's why Dovecot by default |
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130 # only caches MessagePart which speeds up most operations. Whenever client |
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131 # does something where caching could be used, the field is automatically marked |
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132 # to be cached later. For example after FETCH BODY the BODY will be cached |
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133 # for all new messages. Normally you should leave this alone, unless you know |
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134 # what most of your IMAP clients are. Caching more fields than needed makes |
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135 # the index files larger and generate useless I/O. |
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136 # |
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137 # With maildir there's one extra optimization - if nothing is cached, indexing |
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138 # the maildir becomes much faster since it's not opening any of the mail files. |
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139 # This could be useful if your IMAP clients access only new mails. |
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140 |
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141 #mail_cache_fields = MessagePart |
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142 |
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143 # Dovecot can notify client of new mail in selected mailbox soon after it's |
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144 # received. This setting specifies the minimum interval in seconds between |
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145 # new mail notifications to client - internally they may be checked more or |
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146 # less often. Setting this to 0 disables the checking. |
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147 #mailbox_check_interval = 30 |
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148 |
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149 # Space-separated list of fields that Dovecot should never set to be cached. |
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150 # Useful if you want to save disk space at the cost of more I/O when the fields |
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151 # needed. |
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152 #mail_never_cache_fields = |
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153 |
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154 # Save mails with CR+LF instead of plain LF. This makes sending those mails |
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155 # take less CPU, especially with sendfile() syscall with Linux and FreeBSD. |
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156 # But it also creates a bit more disk I/O which may just make it slower. |
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157 #mail_save_crlf = no |
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158 |
| 0 | 159 # Copy mail to another folders using hard links. This is much faster than |
| 160 # actually copying the file. Only problem with it is that if either of the | |
| 161 # mails are modified directly both will change. This isn't a problem with | |
| 162 # IMAP however since it offers no way to modify the existing mails. Also | |
| 163 # at least mutt modifies mails by deleting the old one and inserting a new | |
| 164 # modified mail. So if performance matters at all you should turn this on. | |
| 165 #maildir_copy_with_hardlinks = no | |
| 166 | |
| 167 # Check if mails' content has been changed by external programs. This slows | |
| 168 # down things as extra stat() needs to be called for each file. | |
| 169 #maildir_check_content_changes = no | |
| 170 | |
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171 # If main index file is incompatible with us, should we overwrite it or |
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172 # create a new index with another name. Unless you are running Dovecot in |
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173 # multiple computers with different architectures accessing the same |
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174 # mailboxes (eg. via NFS), it's safe to set this "yes". |
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175 #overwrite_incompatible_index = no |
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176 |
| 0 | 177 # umask to use for mail files and directories |
| 178 #umask = 0077 | |
| 179 | |
| 180 ## | |
| 181 ## Authentication processes | |
| 182 ## | |
| 183 | |
| 184 # You can have multiple processes; each time "auth = xx" is seen, a new | |
| 185 # process definition is started. The point of multiple processes is to be | |
| 186 # able to set stricter permissions to others. For example, plain/PAM | |
| 187 # authentication requires roots, but if you also use digest-md5 authentication | |
| 188 # for some users, you can authenticate them without any privileges in a | |
| 189 # separate auth process. Just remember that only one auth process is asked | |
| 190 # for the password, so you can't have different passwords with different | |
| 191 # processes (unless they have different auth methods, and you're ok with | |
| 192 # having different password for each method). | |
| 193 | |
| 194 # Authentication process name. | |
| 195 auth = default | |
| 196 | |
| 284 | 197 # Authentication methods this process allows separated with a space. |
| 198 # Currently supported: plain digest-md5 | |
| 0 | 199 auth_methods = plain |
| 200 | |
| 201 # Space separated list of realms with authentication methods that need them. | |
| 202 # This is usually empty or the host name of the server (eg. | |
| 203 # mail.mycompany.com). | |
| 204 # - plain auth checks the password from all realms specified in here | |
| 205 # - digest-md5 must have the password added for each realm separately, and | |
| 206 # many clients simply use the first realm listed here. so if you really | |
| 207 # need to add more realms, add them to end of the list. | |
| 208 #auth_realms = | |
| 209 | |
| 210 # Where the user information and passwords are stored into: | |
| 211 # passwd: /etc/passwd or similiar, using getpwnam() | |
| 212 # shadow: /etc/shadow or similiar, using getspnam() | |
| 213 # pam: PAM authentication | |
| 214 # passwd-file /etc/passwd.imap: /etc/passwd-like file. Supports digest-md5 | |
| 215 # style passwords | |
|
280
fa2d1a1d025e
vpopmail authentication. compiles, not tested if it really works.
Timo Sirainen <tss@iki.fi>
parents:
101
diff
changeset
|
216 # vpopmail: vpopmail authentication |
| 27 | 217 auth_userinfo = pam |
| 0 | 218 |
| 219 # Executable location | |
| 435 | 220 #auth_executable = /usr/lib/dovecot/imap-auth |
| 0 | 221 |
| 222 # User to use for the process. Only shadow and pam authentication requires | |
| 223 # roots, so use something else if possible. | |
| 224 auth_user = root | |
| 225 | |
| 435 | 226 # Directory where to chroot the process. Most authentication backends don't |
| 227 # work if this is set, and there's no point chrooting if auth_user is root. | |
| 0 | 228 #auth_chroot = |
| 229 | |
| 230 # Number of authentication processes to create | |
| 231 #auth_count = 1 | |
| 232 | |
| 233 | |
| 234 # digest-md5 authentication process. It requires special MD5 passwords which | |
| 235 # /etc/shadow and PAM doesn't support, so we never need roots to handle it. | |
| 236 # Note that the passwd-file is opened before chrooting and dropping root | |
| 237 # privileges, so it may be 0600-root owned file. | |
| 238 | |
| 239 #auth = digest_md5 | |
| 240 #auth_methods = digest-md5 | |
| 241 #auth_realms = | |
| 242 #auth_userinfo = passwd-file /etc/passwd.imap | |
| 243 #auth_user = imapauth | |
| 244 #auth_chroot = /var/run/dovecot/auth | |
| 245 | |
| 246 # if you plan to use only passwd-file, you don't need the two auth processes, | |
| 247 # simply set "auth_methods = plain digest-md5" |