Globus Connect Server Configuration
This page explains how to install and perform initial configuration for Globus Connect Server. It assumes that you have already followed the instructions on the Pre-Installation Planning and Installation pages.
Globus configuration has been split into two parts: Initial configuration is covered by this page, and explains the parts of Globus Connect Server configuration that are not dependant on authentication method. Authentication-specific configuration is covered on separate pages, one page per authentication method.
Globus Connect Server consists of multiple components, including…
GridFTP, for file transfer.
Certificate Authority (CA) files, so that GridFTP knows who to trust.
MyProxy, for issuing short-term certificates identifying end users.
MyProxy OAuth, for directly handling local authentication.
CA files, so that MyProxy can trust third-party services, like CILogon or another OAuth server.
Not all of these components are activated, and not all configurations are the same. Much depends on how you configure Globus Connect Server.
To make setup easier, the
globus-connect-server-setup program reads from a
/etc/globus-connect-server.conf. Depending on the contents of
that file, other configuration files will be modified, services started or
stopped, et cetera.
The Complete Initial Configuration
globus-connect-server.conf file was created when you installed the
globus-connect-server package. Replace the contents of that file with the
If you need additional explanation, continue reading. Otherwise, you should proceed to the end of this page, where you will proceed based on your chosen authentication method.
The rest of this page talks about individual sections of the configuration presented above.
Globus section of the configuration file is where you specify your Globus
ID and password.
[Globus] User = stanford Password = %(GLOBUS_PASSWORD)s
In the above example, the Globus ID is
email@example.com, to the User
is set to
Your Globus ID is public, and should not change for the life of the endpoint, so it is safe to hard-code the Globus ID in your configuration file. Your password is another matter…
In the above, the special string
%(GLOBUS_PASSWORD)s tells the
globus-connect-server-setup program to look in the
environment variable for the Globus ID password. If the environment variable
is empty or does not exist, then
globus-connect-server-setup will ask you for
the password whn you run it.
Keep your password safe!
Your Globus ID password is a secret! If you hard-code it in this file, then the entire file must be treated as a secret.
Endpoint section controls what people will see when they look
up your endpoint.
[Endpoint] Name = blah Public = False DefaultDirectory = /~/
The three fields in this section will appear in your endpoint’s page on the Globus web site.
Any time you run `globus-connect-server-setup`, if there is a difference between this file's contents and your endpoint's configuration on the Globus web site, this configuration will take precedence.
The Name is a short name for your endpoint. Once chosen, it forms part of
your endpoint ID, which is a combination of your Globus Connect ID and your
endpoint’s short name. For example, if your Globus ID is
firstname.lastname@example.org and your endpoint’s short name is
blargh, then your
endpoint ID will be
When you refer people to your endpoint, the endpoint ID is the best thing to use, because it is short, memorable, and easy to search on th Globus web site.
The Public setting tells the Globus web site if your endpoint will appear in
search results. If you leave this set to
False (which is the default), it
will be harder for users to find your endpoint.
Public does not mean world-readable
Just because your endpoint is public, does not make it world-readable. Users will still need to authenticate.
When a user successfully finds and authenticates to your endpoint, they will
need to be placed in an initial directory. This is controlled by the
DefaultDirectory setting. The default,
/~/, means “The user’s home
No home directory? Change the endpoint default
If users do not have a home directory in your environment, be sure to change the DefaultDirectory setting in your endpoint configuration.
GridFTP section is the largest of the configuration file, and so has been
broken up into parts below.
This part enables encryption for data transfers.
RequireEncryption = True
Globus Connect Server enforces encryption in several areas:
End users use TLS to connect to Globus web and API services, as well as to OAuth services.
Globus infrastructure uses TLS to connect to the GridFTP and MyProxy services running on an endpoint.
There is only one area where encryption is optional: The actual file data sent from endpoint to endpoint may be sent in the clear. This is because encryption does add a processing overhead, which can slow down transfers. However, with modern CPUs, the overhead is generally minimal. So, although Globus has data stream encryption off by default, our default configuration enables it. You should only consider disabling encryption when your endpoint only has access to Low Risk data.
Keep settings in sync
If this setting is True, then you must also go to your endpoint's configuration page on the Globus web site, and change the corresponding setting there, as well. If this setting is True, but your endpoint on Globus has this set to False, then all transfers will fail.
Cancel transfers before enabling
If encryption is disabled, and you decide to enable it, then make sure no transfers are running. If any transfers to/from this endpoint exist (even if they are paused), enabling encryption will cause those transfers to fail.
GridFTP: Path Restrictions
This part configures the paths that authenticated users are allowed to access via Globus.
This is where you enter the Globus path-restriction string you devised during pre-installation planning. If you do not want to specify any Globus path restrictions, this field should be commented out.
Remember that in all cases, the OS permissions still apply.
;; Sharing = True ;; SharingRestrictPaths = ;; SharingUsersAllow = ;; SharingGroupsAllow = ;; SharingUsersDeny = ;; SharingGroupsDeny =
This is where you enter the Globus sharing settings you worked out during pre-installation planning. If you do not want to restrict paths, users, or groups from sharing, those fields should be commented out.
GridFTP: Sharing State
;;SharingStateDir = $HOME/.globus/sharing
When an authenticated user creates a shared endpoint, Globus Connect Server needs a place to store information about the shared endpoint.
No home directory? Be careful about sharing
If users do not have a home directory in your environment, special configuration will be needed if you want to enable sharing. Continue reading this section for more details.
This setting supports the use of
$HOME (referring to the user’s home
$USER (the username of the authenticated user who is creating
the share). The path must point to a valid directory, and although the user
does not have to own the directory, the user must be able to write to the
directory. The default is to store shared endpoint state files in the user’s
home directory, as shown above.
This requirement can be a problem when users do not have home directories. In that case, you will have to perform the following steps to set up a secure space for shared endpoint state:
Keep this directory safe
This directory is critical to shared endpoint operation. It must be backed up, with ownership and permissions preserved. If you have multiple servers behind a Globus Connect Server endpoint, then this directory must be on shared storage accessible to all the servers behind the endpoint.
Identify a group that all authenticated users are in. In this example, we will use
Create a directory somewhere on the system, in a path that authenticated users can normally access. For example,
/var/libis normally world-readable). This will be the “sharing directory”. Set the owner to
root, and the group to be the common group.
mkdir /var/lib/globus-sharing chown root:operator /var/lib/globus-sharing
In your sharing directory, make another directory. For example,
/var/lib/globus-sharing/state. This will be the state directory. Set the owner to
root, and the group to be the common group.
mkdir /var/lib/globus-sharing/state chown root:operator /var/lib/globus-sharing/state
Change the sharing directory so that
roothas full permissions, and the group only has execute permissions. This will allow authenticated users to enter the directory, without seeing its contents or making any changes.
chmod 0710 /var/lib/globus-sharing
Change the state directory so that
roothas full permissions, the group has write and execute permissions, and the sticky bit is set. This will allow authenticated users to enter the directory, create files in the directory, and delete the files they create, without seeing the directory’s contents.
chmod 01730 /var/lib/globus-sharing/state
SharingStateDirto the state directory.
;; Custom state directory, because we don't have homedirs. SharingStateDir = /var/lib/globus-sharing/state
GridFTP: Server Connectivity
This part tells others how to connect to the GridFTP service running on your endpoint.
Server = %(HOSTNAME)s ;;ServerBehindNAT = True ;; DataInterface =
These three items are all related. What you set them to depends on how your machine’s name an IP address, as you can see it, matches what the rest of the world can see.
In the most simple case, your machine has a network interface with a public IP address, and the machine is able to perform forward and reverse DNS lookups to confirm that the machine’s fully-qualified domain name resolves to one of the interface’s IP addresses. In that case, nothing needs to be changed.
However, in some cases, Globus can not properly identify the public hostname of
your machine. This happens most often when the machine is behind a NAT, or if
the machine is part of an environment where it is getting DHCP from something
other than the Stanford network. In those cases, you should set
True. And if the system’s hostname does not match the
name that the rest of the world uses to connect to it, then set
Server to be
the public hostname of the system.
Avoid network load-balancers
Do not put your Globus endpoints behind a network load-balancer. Globus natively supports multiple GridFTP servers behind one endpoint, so external load-balancing is not required. If you are trying to enable failover for MyProxy, that is out of the scope of this documentation.
Do not use proxies or packet filters
It is extremely important that you do not route your GridFTP traffic through a proxy or packet filter. GridFTP uses extensions to the FTP protocol, and if a proxy or filter is unable to handle the GridFTP extensions, transfers may not work at all.
Your next step is to perform configuration that is specific to the authentication method you decided to use.
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