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   slapd.conf    ( 5 )

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Глобальные параметры конфигурации (Global configuration options)

Options described in this section apply to all backends, unless specifically overridden in a backend definition. Arguments that should be replaced by actual text are shown in brackets <>.

access to <what> [ by <who> <access> <control> ]+ Grant access (specified by <access>) to a set of entries and/or attributes (specified by <what>) by one or more requestors (specified by <who>). If no access controls are present, the default policy allows anyone and everyone to read anything but restricts updates to rootdn. (e.g., "access to * by * read"). The rootdn can always read and write EVERYTHING! See slapd.access(5) and the "OpenLDAP's Administrator's Guide" for details.

allow <features> Specify a set of features (separated by white space) to allow (default none). bind_v2 allows acceptance of LDAPv2 bind requests. Note that slapd(8) does not truly implement LDAPv2 (RFC 1777), now Historic (RFC 3494). bind_anon_cred allows anonymous bind when credentials are not empty (e.g. when DN is empty). bind_anon_dn allows unauthenticated (anonymous) bind when DN is not empty. update_anon allows unauthenticated (anonymous) update operations to be processed (subject to access controls and other administrative limits). proxy_authz_anon allows unauthenticated (anonymous) proxy authorization control to be processed (subject to access controls, authorization and other administrative limits).

argsfile <filename> The (absolute) name of a file that will hold the slapd server's command line (program name and options).

attributeoptions [option-name]... Define tagging attribute options or option tag/range prefixes. Options must not end with `-', prefixes must end with `-'. The `lang-' prefix is predefined. If you use the attributeoptions directive, `lang-' will no longer be defined and you must specify it explicitly if you want it defined.

An attribute description with a tagging option is a subtype of that attribute description without the option. Except for that, options defined this way have no special semantics. Prefixes defined this way work like the `lang-' options: They define a prefix for tagging options starting with the prefix. That is, if you define the prefix `x-foo-', you can use the option `x-foo-bar'. Furthermore, in a search or compare, a prefix or range name (with a trailing `-') matches all options starting with that name, as well as the option with the range name sans the trailing `-'. That is, `x-foo-bar-' matches `x-foo-bar' and `x-foo-bar-baz'.

RFC 4520 reserves options beginning with `x-' for private experiments. Other options should be registered with IANA, see RFC 4520 section 3.5. OpenLDAP also has the `binary' option built in, but this is a transfer option, not a tagging option.

attributetype ( <oid> [NAME <name>] [DESC <description>] [OBSOLETE] [SUP <oid>] [EQUALITY <oid>] [ORDERING <oid>] [SUBSTR <oid>] [SYNTAX <oidlen>] [SINGLE-VALUE] [COLLECTIVE] [NO-USER-MODIFICATION] [USAGE <attributeUsage>] ) Specify an attribute type using the LDAPv3 syntax defined in RFC 4512. The slapd parser extends the RFC 4512 definition by allowing string forms as well as numeric OIDs to be used for the attribute OID and attribute syntax OID. (See the objectidentifier description.)

authid-rewrite<cmd> <args> Used by the authentication framework to convert simple user names to an LDAP DN used for authorization purposes. Its purpose is analogous to that of authz-regexp (see below). The prefix authid- is followed by a set of rules analogous to those described in slapo-rwm(5) for data rewriting (replace the rwm- prefix with authid-). authid-rewrite<cmd> and authz-regexp rules should not be intermixed.

authz-policy <policy> Used to specify which rules to use for Proxy Authorization. Proxy authorization allows a client to authenticate to the server using one user's credentials, but specify a different identity to use for authorization and access control purposes. It essentially allows user A to login as user B, using user A's password. The none flag disables proxy authorization. This is the default setting. The from flag will use rules in the authzFrom attribute of the authorization DN. The to flag will use rules in the authzTo attribute of the authentication DN. The any flag, an alias for the deprecated value of both, will allow any of the above, whatever succeeds first (checked in to, from sequence. The all flag requires both authorizations to succeed.

The rules are mechanisms to specify which identities are allowed to perform proxy authorization. The authzFrom attribute in an entry specifies which other users are allowed to proxy login to this entry. The authzTo attribute in an entry specifies which other users this user can authorize as. Use of authzTo rules can be easily abused if users are allowed to write arbitrary values to this attribute. In general the authzTo attribute must be protected with ACLs such that only privileged users can modify it. The value of authzFrom and authzTo describes an identity or a set of identities; it can take five forms:

ldap:///<base>??[<scope>]?<filter> dn[.<dnstyle>]:<pattern> u[.<mech>[/<realm>]]:<pattern> group[/objectClass[/attributeType]]:<pattern> <pattern>

<dnstyle>:={exact|onelevel|children|subtree|regex}

The first form is a valid LDAP URI where the <host>:<port>, the <attrs> and the <extensions> portions must be absent, so that the search occurs locally on either authzFrom or authzTo.

The second form is a DN. The optional dnstyle modifiers exact, onelevel, children, and subtree provide exact, onelevel, children and subtree matches, which cause <pattern> to be normalized according to the DN normalization rules. The special dnstyle modifier regex causes the <pattern> to be treated as a POSIX (''extended'') regular expression, as discussed in regex(7) and/or re_format(7). A pattern of * means any non-anonymous DN.

The third form is a SASL id. The optional fields <mech> and <realm> allow specification of a SASL mechanism, and eventually a SASL realm, for those mechanisms that support one. The need to allow the specification of a mechanism is still debated, and users are strongly discouraged to rely on this possibility.

The fourth form is a group specification. It consists of the keyword group, optionally followed by the specification of the group objectClass and attributeType. The objectClass defaults to groupOfNames. The attributeType defaults to member. The group with DN <pattern> is searched with base scope, filtered on the specified objectClass. The values of the resulting attributeType are searched for the asserted DN.

The fifth form is provided for backwards compatibility. If no identity type is provided, i.e. only <pattern> is present, an exact DN is assumed; as a consequence, <pattern> is subjected to DN normalization.

Since the interpretation of authzFrom and authzTo can impact security, users are strongly encouraged to explicitly set the type of identity specification that is being used. A subset of these rules can be used as third arg in the authz-regexp statement (see below); significantly, the URI, provided it results in exactly one entry, and the dn.exact:<dn> forms.

authz-regexp <match> <replace> Used by the authentication framework to convert simple user names, such as provided by SASL subsystem, or extracted from certificates in case of cert-based SASL EXTERNAL, or provided within the RFC 4370 "proxied authorization" control, to an LDAP DN used for authorization purposes. Note that the resulting DN need not refer to an existing entry to be considered valid. When an authorization request is received from the SASL subsystem, the SASL USERNAME, REALM, and MECHANISM are taken, when available, and combined into a name of the form

UID=<username>[[,CN=<realm>],CN=<mechanism>],CN=auth

This name is then compared against the match POSIX (''extended'') regular expression, and if the match is successful, the name is replaced with the replace string. If there are wildcard strings in the match regular expression that are enclosed in parenthesis, e.g.

UID=([^,]*),CN=.*

then the portion of the name that matched the wildcard will be stored in the numbered placeholder variable $1. If there are other wildcard strings in parenthesis, the matching strings will be in $2, $3, etc. up to $9. The placeholders can then be used in the replace string, e.g.

UID=$1,OU=Accounts,DC=example,DC=com

The replaced name can be either a DN, i.e. a string prefixed by "dn:", or an LDAP URI. If the latter, the server will use the URI to search its own database(s) and, if the search returns exactly one entry, the name is replaced by the DN of that entry. The LDAP URI must have no hostport, attrs, or extensions components, but the filter is mandatory, e.g.

ldap:///OU=Accounts,DC=example,DC=com??one?(UID=$1)

The protocol portion of the URI must be strictly ldap. Note that this search is subject to access controls. Specifically, the authentication identity must have "auth" access in the subject.

Multiple authz-regexp options can be given in the configuration file to allow for multiple matching and replacement patterns. The matching patterns are checked in the order they appear in the file, stopping at the first successful match.

concurrency <integer> Specify a desired level of concurrency. Provided to the underlying thread system as a hint. The default is not to provide any hint. This setting is only meaningful on some platforms where there is not a one to one correspondence between user threads and kernel threads.

conn_max_pending <integer> Specify the maximum number of pending requests for an anonymous session. If requests are submitted faster than the server can process them, they will be queued up to this limit. If the limit is exceeded, the session is closed. The default is 100.

conn_max_pending_auth <integer> Specify the maximum number of pending requests for an authenticated session. The default is 1000.

defaultsearchbase <dn> Specify a default search base to use when client submits a non-base search request with an empty base DN. Base scoped search requests with an empty base DN are not affected.

disallow <features> Specify a set of features (separated by white space) to disallow (default none). bind_anon disables acceptance of anonymous bind requests. Note that this setting does not prohibit anonymous directory access (See "require authc"). bind_simple disables simple (bind) authentication. tls_2_anon disables forcing session to anonymous status (see also tls_authc) upon StartTLS operation receipt. tls_authc disallows the StartTLS operation if authenticated (see also tls_2_anon). proxy_authz_non_critical disables acceptance of the proxied authorization control (RFC4370) with criticality set to FALSE. dontusecopy_non_critical disables acceptance of the dontUseCopy control (a work in progress) with criticality set to FALSE.

ditcontentrule ( <oid> [NAME <name>] [DESC <description>] [OBSOLETE] [AUX <oids>] [MUST <oids>] [MAY <oids>] [NOT <oids>] ) Specify an DIT Content Rule using the LDAPv3 syntax defined in RFC 4512. The slapd parser extends the RFC 4512 definition by allowing string forms as well as numeric OIDs to be used for the attribute OID and attribute syntax OID. (See the objectidentifier description.)

gentlehup { on | off } A SIGHUP signal will only cause a 'gentle' shutdown- attempt: Slapd will stop listening for new connections, but will not close the connections to the current clients. Future write operations return unwilling-to-perform, though. Slapd terminates when all clients have closed their connections (if they ever do), or - as before - if it receives a SIGTERM signal. This can be useful if you wish to terminate the server and start a new slapd server with another database, without disrupting the currently active clients. The default is off. You may wish to use idletimeout along with this option.

idletimeout <integer> Specify the number of seconds to wait before forcibly closing an idle client connection. A setting of 0 disables this feature. The default is 0. You may also want to set the writetimeout option.

include <filename> Read additional configuration information from the given file before continuing with the next line of the current file.

index_hash64 { on | off } Use a 64 bit hash for indexing. The default is to use 32 bit hashes. These hashes are used for equality and substring indexing. The 64 bit version may be needed to avoid index collisions when the number of indexed values exceeds ~64 million. (Note that substring indexing generates multiple index values per actual attribute value.) Indices generated with 32 bit hashes are incompatible with the 64 bit version, and vice versa. Any existing databases must be fully reloaded when changing this setting. This directive is only supported on 64 bit CPUs.

index_intlen <integer> Specify the key length for ordered integer indices. The most significant bytes of the binary integer will be used for index keys. The default value is 4, which provides exact indexing for 31 bit values. A floating point representation is used to index too large values.

index_substr_if_maxlen <integer> Specify the maximum length for subinitial and subfinal indices. Only this many characters of an attribute value will be processed by the indexing functions; any excess characters are ignored. The default is 4.

index_substr_if_minlen <integer> Specify the minimum length for subinitial and subfinal indices. An attribute value must have at least this many characters in order to be processed by the indexing functions. The default is 2.

index_substr_any_len <integer> Specify the length used for subany indices. An attribute value must have at least this many characters in order to be processed. Attribute values longer than this length will be processed in segments of this length. The default is 4. The subany index will also be used in subinitial and subfinal index lookups when the filter string is longer than the index_substr_if_maxlen value.

index_substr_any_step <integer> Specify the steps used in subany index lookups. This value sets the offset for the segments of a filter string that are processed for a subany index lookup. The default is 2. For example, with the default values, a search using this filter "cn=*abcdefgh*" would generate index lookups for "abcd", "cdef", and "efgh".

Note: Indexing support depends on the particular backend in use. Also, changing these settings will generally require deleting any indices that depend on these parameters and recreating them with slapindex(8).

ldapsyntax ( <oid> [DESC <description>] [X-SUBST <substitute- syntax>] ) Specify an LDAP syntax using the LDAPv3 syntax defined in RFC 4512. The slapd parser extends the RFC 4512 definition by allowing string forms as well as numeric OIDs to be used for the syntax OID. (See the objectidentifier description.) The slapd parser also honors the X-SUBST extension (an OpenLDAP-specific extension), which allows one to use the ldapsyntax statement to define a non-implemented syntax along with another syntax, the extension value substitute-syntax, as its temporary replacement. The substitute-syntax must be defined. This allows one to define attribute types that make use of non-implemented syntaxes using the correct syntax OID. Unless X-SUBST is used, this configuration statement would result in an error, since no handlers would be associated to the resulting syntax structure.

listener-threads <integer> Specify the number of threads to use for the connection manager. The default is 1 and this is typically adequate for up to 16 CPU cores. The value should be set to a power of 2.

localSSF <SSF> Specifies the Security Strength Factor (SSF) to be given local LDAP sessions, such as those to the ldapi:// listener. For a description of SSF values, see sasl- secprops's minssf option description. The default is 71.

logfile <filename> Specify a file for recording slapd debug messages. By default these messages only go to stderr, are not recorded anywhere else, and are unrelated to messages exposed by the loglevel configuration parameter. Specifying a logfile copies messages to both stderr and the logfile.

logfile-only on | off Specify that debug messages should only go to the configured logfile, and not to stderr.

logfile-rotate <max> <Mbytes> <hours> Specify automatic rotation for the configured logfile as the maximum number of old logfiles to retain, a maximum size in megabytes to allow a logfile to grow before rotation, and a maximum age in hours for a logfile to be used before rotation. The maximum number must be in the range 1-99. Setting Mbytes or hours to zero disables the size or age check, respectively. At least one of Mbytes or hours must be non-zero. By default no automatic rotation will be performed.

loglevel <integer> [...] Specify the level at which debugging statements and operation statistics should be syslogged (currently logged to the syslogd(8) LOG_LOCAL4 facility). They must be considered subsystems rather than increasingly verbose log levels. Some messages with higher priority are logged regardless of the configured loglevel as soon as any logging is configured. Log levels are additive, and available levels are: 1 (0x1 trace) trace function calls 2 (0x2 packets) debug packet handling 4 (0x4 args) heavy trace debugging (function args) 8 (0x8 conns) connection management 16 (0x10 BER) print out packets sent and received 32 (0x20 filter) search filter processing 64 (0x40 config) configuration file processing 128 (0x80 ACL) access control list processing 256 (0x100 stats) connections, LDAP operations, results (recommended) 512 (0x200 stats2) stats2 log entries sent 1024 (0x400 shell) print communication with shell backends 2048 (0x800 parse) entry parsing

16384 (0x4000 sync) LDAPSync replication 32768 (0x8000 none) only messages that get logged whatever log level is set The desired log level can be input as a single integer that combines the (ORed) desired levels, both in decimal or in hexadecimal notation, as a list of integers (that are ORed internally), or as a list of the names that are shown between parentheses, such that

loglevel 129 loglevel 0x81 loglevel 128 1 loglevel 0x80 0x1 loglevel acl trace

are equivalent. The keyword any can be used as a shortcut to enable logging at all levels (equivalent to -1). The keyword none, or the equivalent integer representation, causes those messages that are logged regardless of the configured loglevel to be logged. In fact, if loglevel is set to 0, no logging occurs, so at least the none level is required to have high priority messages logged.

Note that the packets, BER, and parse levels are only available as debug output on stderr, and are not sent to syslog.

The loglevel defaults to stats. This level should usually also be included when using other loglevels, to help analyze the logs.

maxfilterdepth <integer> Specify the maximum depth of nested filters in search requests. The default is 1000.

moduleload <filename> [<arguments>...] Specify the name of a dynamically loadable module to load and any additional arguments if supported by the module. The filename may be an absolute path name or a simple filename. Non-absolute names are searched for in the directories specified by the modulepath option. This option and the modulepath option are only usable if slapd was compiled with --enable-modules.

modulepath <pathspec> Specify a list of directories to search for loadable modules. Typically the path is colon-separated but this depends on the operating system. The default is MODULEDIR, which is where the standard OpenLDAP install will place its modules.

objectclass ( <oid> [NAME <name>] [DESC <description>] [OBSOLETE] [SUP <oids>] [{ ABSTRACT | STRUCTURAL | AUXILIARY }] [MUST <oids>] [MAY <oids>] ) Specify an objectclass using the LDAPv3 syntax defined in RFC 4512. The slapd parser extends the RFC 4512 definition by allowing string forms as well as numeric OIDs to be used for the object class OID. (See the objectidentifier description.) Object classes are "STRUCTURAL" by default.

objectidentifier <name> { <oid> | <name>[:<suffix>] } Define a string name that equates to the given OID. The string can be used in place of the numeric OID in objectclass and attribute definitions. The name can also be used with a suffix of the form ":xx" in which case the value "oid.xx" will be used.

password-hash <hash> [<hash>...] This option configures one or more hashes to be used in generation of user passwords stored in the userPassword attribute during processing of LDAP Password Modify Extended Operations (RFC 3062). The <hash> must be one of {SSHA}, {SHA}, {SMD5}, {MD5}, {CRYPT}, and {CLEARTEXT}. The default is {SSHA}.

{SHA} and {SSHA} use the SHA-1 algorithm (FIPS 160-1), the latter with a seed.

{MD5} and {SMD5} use the MD5 algorithm (RFC 1321), the latter with a seed.

{CRYPT} uses the crypt(3).

{CLEARTEXT} indicates that the new password should be added to userPassword as clear text.

Note that this option does not alter the normal user applications handling of userPassword during LDAP Add, Modify, or other LDAP operations.

password-crypt-salt-format <format> Specify the format of the salt passed to crypt(3) when generating {CRYPT} passwords (see password-hash) during processing of LDAP Password Modify Extended Operations (RFC 3062).

This string needs to be in sprintf(3) format and may include one (and only one) %s conversion. This conversion will be substituted with a string of random characters from [A-Za-z0-9./]. For example, "%.2s" provides a two character salt and "$1$%.8s" tells some versions of crypt(3) to use an MD5 algorithm and provides 8 random characters of salt. The default is "%s", which provides 31 characters of salt.

pidfile <filename> The (absolute) name of a file that will hold the slapd server's process ID (see getpid(2)).

pluginlog: <filename> The ( absolute ) name of a file that will contain log messages from SLAPI plugins. See slapd.plugin(5) for details.

referral <url> Specify the referral to pass back when slapd(8) cannot find a local database to handle a request. If specified multiple times, each url is provided.

require <conditions> Specify a set of conditions (separated by white space) to require (default none). The directive may be specified globally and/or per-database; databases inherit global conditions, so per-database specifications are additive. bind requires bind operation prior to directory operations. LDAPv3 requires session to be using LDAP version 3. authc requires authentication prior to directory operations. SASL requires SASL authentication prior to directory operations. strong requires strong authentication prior to directory operations. The strong keyword allows protected "simple" authentication as well as SASL authentication. none may be used to require no conditions (useful to clear out globally set conditions within a particular database); it must occur first in the list of conditions.

reverse-lookup on | off Enable/disable client name unverified reverse lookup (default is off if compiled with --enable-rlookups).

rootDSE <file> Specify the name of an LDIF(5) file containing user defined attributes for the root DSE. These attributes are returned in addition to the attributes normally produced by slapd.

The root DSE is an entry with information about the server and its capabilities, in operational attributes. It has the empty DN, and can be read with e.g.: ldapsearch -x -b "" -s base "+" See RFC 4512 section 5.1 for details.

sasl-auxprops <plugin> [...] Specify which auxprop plugins to use for authentication lookups. The default is empty, which just uses slapd's internal support. Usually no other auxprop plugins are needed.

sasl-auxprops-dontusecopy <attr> [...] Specify which attribute(s) should be subject to the don't use copy control. This is necessary for some SASL mechanisms such as OTP to work in a replicated environment. The attribute "cmusaslsecretOTP" is the default value.

sasl-auxprops-dontusecopy-ignore on | off Used to disable replication of the attribute(s) defined by sasl-auxprops-dontusecopy and instead use a local value for the attribute. This allows the SASL mechanism to continue to work if the provider is offline. This can cause replication inconsistency. Defaults to off.

sasl-host <fqdn> Used to specify the fully qualified domain name used for SASL processing.

sasl-realm <realm> Specify SASL realm. Default is empty.

sasl-cbinding none | tls-unique | tls-endpoint Specify the channel-binding type, see also LDAP_OPT_X_SASL_CBINDING. Default is none.

sasl-secprops <properties> Used to specify Cyrus SASL security properties. The none flag (without any other properties) causes the flag properties default, "noanonymous,noplain", to be cleared. The noplain flag disables mechanisms susceptible to simple passive attacks. The noactive flag disables mechanisms susceptible to active attacks. The nodict flag disables mechanisms susceptible to passive dictionary attacks. The noanonymous flag disables mechanisms which support anonymous login. The forwardsec flag require forward secrecy between sessions. The passcred require mechanisms which pass client credentials (and allow mechanisms which can pass credentials to do so). The minssf=<factor> property specifies the minimum acceptable security strength factor as an integer approximate to effective key length used for encryption. 0 (zero) implies no protection, 1 implies integrity protection only, 128 allows RC4, Blowfish and other similar ciphers, 256 will require modern ciphers. The default is 0. The maxssf=<factor> property specifies the maximum acceptable security strength factor as an integer (see minssf description). The default is INT_MAX. The maxbufsize=<size> property specifies the maximum security layer receive buffer size allowed. 0 disables security layers. The default is 65536.

schemadn <dn> Specify the distinguished name for the subschema subentry that controls the entries on this server. The default is "cn=Subschema".

security <factors> Specify a set of security strength factors (separated by white space) to require (see sasl-secprops's minssf option for a description of security strength factors). The directive may be specified globally and/or per-database. ssf=<n> specifies the overall security strength factor. transport=<n> specifies the transport security strength factor. tls=<n> specifies the TLS security strength factor. sasl=<n> specifies the SASL security strength factor. update_ssf=<n> specifies the overall security strength factor to require for directory updates. update_transport=<n> specifies the transport security strength factor to require for directory updates. update_tls=<n> specifies the TLS security strength factor to require for directory updates. update_sasl=<n> specifies the SASL security strength factor to require for directory updates. simple_bind=<n> specifies the security strength factor required for simple username/password authentication. Note that the transport factor is measure of security provided by the underlying transport, e.g. ldapi:// (and eventually IPSEC). It is not normally used.

serverID <integer> [<URL>] Specify an integer ID from 0 to 4095 for this server. The ID may also be specified as a hexadecimal ID by prefixing the value with "0x". Non-zero IDs are required when using multi-provider replication and each provider must have a unique non-zero ID. Note that this requirement also applies to separate providers contributing to a glued set of databases. If the URL is provided, this directive may be specified multiple times, providing a complete list of participating servers and their IDs. The fully qualified hostname of each server should be used in the supplied URLs. The IDs are used in the "replica id" field of all CSNs generated by the specified server. The default value is zero, which is only valid for single provider replication. Example:

serverID 1 ldap://ldap1.example.com serverID 2 ldap://ldap2.example.com

sizelimit {<integer>|unlimited}

sizelimit size[.{soft|hard}]=<integer> [...] Specify the maximum number of entries to return from a search operation. The default size limit is 500. Use unlimited to specify no limits. The second format allows a fine grain setting of the size limits. If no special qualifiers are specified, both soft and hard limits are set. Extra args can be added on the same line. Additional qualifiers are available; see limits for an explanation of all of the different flags.

sockbuf_max_incoming <integer> Specify the maximum incoming LDAP PDU size for anonymous sessions. The default is 262143.

sockbuf_max_incoming_auth <integer> Specify the maximum incoming LDAP PDU size for authenticated sessions. The default is 4194303.

sortvals <attr> [...] Specify a list of multi-valued attributes whose values will always be maintained in sorted order. Using this option will allow Modify, Compare, and filter evaluations on these attributes to be performed more efficiently. The resulting sort order depends on the attributes' syntax and matching rules and may not correspond to lexical order or any other recognizable order.

tcp-buffer [listener=<URL>] [{read|write}=]<size> Specify the size of the TCP buffer. A global value for both read and write TCP buffers related to any listener is defined, unless the listener is explicitly specified, or either the read or write qualifiers are used. See tcp(7) for details. Note that some OS-es implement automatic TCP buffer tuning.

threads <integer> Specify the maximum size of the primary thread pool. The default is 16; the minimum value is 2.

threadqueues <integer> Specify the number of work queues to use for the primary thread pool. The default is 1 and this is typically adequate for up to 8 CPU cores. The value should not exceed the number of CPUs in the system.

timelimit {<integer>|unlimited}

timelimit time[.{soft|hard}]=<integer> [...] Specify the maximum number of seconds (in real time) slapd will spend answering a search request. The default time limit is 3600. Use unlimited to specify no limits. The second format allows a fine grain setting of the time limits. Extra args can be added on the same line. See limits for an explanation of the different flags.

tool-threads <integer> Specify the maximum number of threads to use in tool mode. This should not be greater than the number of CPUs in the system. The default is 1.

writetimeout <integer> Specify the number of seconds to wait before forcibly closing a connection with an outstanding write. This allows recovery from various network hang conditions. A writetimeout of 0 disables this feature. The default is 0.