205 lines
7.7 KiB
Markdown
205 lines
7.7 KiB
Markdown
---
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date: "2016-12-01T16:00:00+02:00"
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title: "Authentication"
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slug: "authentication"
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weight: 10
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toc: true
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draft: false
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menu:
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sidebar:
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parent: "features"
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name: "Authentication"
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weight: 10
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identifier: "authentication"
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---
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---
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name: Authentication
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---
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# Authentication
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## LDAP (Lightweight Directory Access Protocol)
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Both the LDAP via BindDN and the simple auth LDAP share the following fields:
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- Authorization Name **(required)**
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- A name to assign to the new method of authorization.
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- Host **(required)**
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- The address where the LDAP server can be reached.
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- Example: `mydomain.com`
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- Port **(required)**
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- The port to use when connecting to the server.
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- Example: `389` for LDAP or `636` for LDAP SSL
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- Enable TLS Encryption (optional)
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- Whether to use TLS when connecting to the LDAP server.
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- Admin Filter (optional)
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- An LDAP filter specifying if a user should be given administrator
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privileges. If a user account passes the filter, the user will be
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privileged as an administrator.
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- Example: `(objectClass=adminAccount)`
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- Example for Microsoft Active Directory (AD): `(memberOf=CN=admin-group,OU=example,DC=example,DC=org)`
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- Username attribute (optional)
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- The attribute of the user's LDAP record containing the user name. Given
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attribute value will be used for new Gitea account user name after first
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successful sign-in. Leave empty to use login name given on sign-in form.
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- This is useful when supplied login name is matched against multiple
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attributes, but only single specific attribute should be used for Gitea
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account name, see "User Filter".
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- Example: `uid`
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- Example for Microsoft Active Directory (AD): `sAMAccountName`
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- First name attribute (optional)
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- The attribute of the user's LDAP record containing the user's first name.
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This will be used to populate their account information.
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- Example: `givenName`
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- Surname attribute (optional)
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- The attribute of the user's LDAP record containing the user's surname.
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This will be used to populate their account information.
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- Example: `sn`
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- E-mail attribute **(required)**
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- The attribute of the user's LDAP record containing the user's email
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address. This will be used to populate their account information.
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- Example: `mail`
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**LDAP via BindDN** adds the following fields:
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- Bind DN (optional)
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- The DN to bind to the LDAP server with when searching for the user. This
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may be left blank to perform an anonymous search.
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- Example: `cn=Search,dc=mydomain,dc=com`
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- Bind Password (optional)
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- The password for the Bind DN specified above, if any. _Note: The password
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is stored in plaintext at the server. As such, ensure that your Bind DN
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has as few privileges as possible._
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- User Search Base **(required)**
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- The LDAP base at which user accounts will be searched for.
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- Example: `ou=Users,dc=mydomain,dc=com`
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- User Filter **(required)**
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- An LDAP filter declaring how to find the user record that is attempting to
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authenticate. The `%s` matching parameter will be substituted with login
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name given on sign-in form.
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- Example: `(&(objectClass=posixAccount)(uid=%s))`
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- Example for Microsoft Active Directory (AD): `(&(objectCategory=Person)(memberOf=CN=user-group,OU=example,DC=example,DC=org)(sAMAccountName=%s)(!(UserAccountControl:1.2.840.113556.1.4.803:=2)))`
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- To substitute more than once `%[1]s` should be used instead, e.g. when
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matching supplied login name against multiple attributes such as user
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identifier, email or even phone number.
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- Example: `(&(objectClass=Person)(|(uid=%[1]s)(mail=%[1]s)(mobile=%[1]s)))`
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- Enable user synchronization
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- This option enables a periodic task that synchronizes the Gitea users with
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the LDAP server. The default period is every 24 hours but that can be
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changed in the app.ini file. See the *cron.sync_external_users* section in
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the [sample
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app.ini](https://github.com/go-gitea/gitea/blob/master/custom/conf/app.ini.sample)
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for detailed comments about that section. The *User Search Base* and *User
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Filter* settings described above will limit which users can use Gitea and
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which users will be synchronized. When initially run the task will create
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all LDAP users that match the given settings so take care if working with
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large Enterprise LDAP directories.
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**LDAP using simple auth** adds the following fields:
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- User DN **(required)**
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- A template to use as the user's DN. The `%s` matching parameter will be substituted with login name given on sign-in form.
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- Example: `cn=%s,ou=Users,dc=mydomain,dc=com`
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- Example: `uid=%s,ou=Users,dc=mydomain,dc=com`
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- User Filter **(required)**
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- An LDAP filter declaring when a user should be allowed to log in. The `%s`
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matching parameter will be substituted with login name given on sign-in
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form.
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- Example: `(&(objectClass=posixAccount)(cn=%s))`
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- Example: `(&(objectClass=posixAccount)(uid=%s))`
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**Verify group membership in LDAP** uses the following fields:
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* Group Search Base (optional)
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* The LDAP DN used for groups.
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* Example: `ou=group,dc=mydomain,dc=com`
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* Group Name Filter (optional)
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* An LDAP filter declaring how to find valid groups in the above DN.
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* Example: `(|(cn=gitea_users)(cn=admins))`
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* User Attribute in Group (optional)
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* Which user LDAP attribute is listed in the group.
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* Example: `uid`
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* Group Attribute for User (optional)
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* Which group LDAP attribute contains an array above user attribute names.
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* Example: `memberUid`
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## PAM (Pluggable Authentication Module)
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To configure this you just need to set the 'PAM Service Name' to a filename in `/etc/pam.d/`.
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If you want it to work with normal Linux passwords, the user running Gitea must have read access to `/etc/shadow`.
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## SMTP (Simple Mail Transfer Protocol)
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This option allows Gitea to log in to your SMTP host as a Gitea user. To configure this, simply set the fields below:
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- Authentication Name **(required)**
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- A name to assign to the new method of authorization.
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- SMTP Authentication Type **(required)**
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- Type of authentication for use on your SMTP host, PLAIN or LOGIN.
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- Host **(required)**
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- The address where the SMTP host can be reached.
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- Example: `smtp.mydomain.com`
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- Port **(required)**
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- The port to use when connecting to the server.
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- Example: `587`
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- Allowed Domains
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- Restrict what domains can log in if you're using public SMTP host or SMTP host with multiple domains.
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- Example: `gitea.io,mydomain.com,mydomain2.com`
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- Enable TLS Encryption
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- Enable TLS encryption on authentication.
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- Skip TLS Verify
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- Disable TLS verify on authentication.
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- This authentication is activate
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- Enable or disable this auth.
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## FreeIPA
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- In order to log in to Gitea using FreeIPA credentials, you need to create a bind account for Gitea to use:
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- On the FreeIPA server, create a `gitea.ldif` file, replacing `dc=example,dc=com` with your DN, and providing an appropriately secure password:
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```
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dn: uid=gitea,cn=sysaccounts,cn=etc,dc=example,dc=com
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changetype: add
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objectclass: account
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objectclass: simplesecurityobject
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uid: gitea
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userPassword: secure password
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passwordExpirationTime: 20380119031407Z
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nsIdleTimeout: 0
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```
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- Import the LDIF (change localhost to an IPA server if needed), you’ll be prompted for your Directory Manager password:
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```
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ldapmodify -h localhost -p 389 -x -D \
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"cn=Directory Manager" -W -f gitea.ldif
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```
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- Add an IPA group for gitea_users :
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```
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ipa group-add --desc="Gitea Users" gitea_users
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```
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- Note: If you get an error about IPA credentials, please run `kinit admin` and give your admin account password.
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- Now login to the Gitea as an Administrator, click on "Authentication" under Admin Panel. Then click `Add New Source` and fill in the details, changing all where appropriate to your own domain.
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