Photon Management Daemon Command-line Interface (pmd-cli)

Photon OS provides the Photon Management Daemon command line interface (pmd-cli).

Setup Steps

The pmd-cli utility is included with your Photon OS distribution. To make sure that you have the latest version, you can run:

tdnf install pmd-cli

Syntax

pmd-cli [connection_auth_options] <component> <command> [command_options]

Passed-in parameter values can be enclosed in single (') or double-quotes (") as long as you use matching characters to denote the beginning and end of the value. Unless a parameter value contains special characters or spaces, you can also omit quotes altogether.

Connection / Authorization Options

Local Connections

For local connections, you omit the connection and authorization options:

pmd-cli <component> <cmd> <options>

Permissions for the currently logged-in user apply when executing commands. This is the same as specifying –servername localhost.

Remote Connections

For connecting to a remote server (a server other than the local server), you specify two connection / authorization options:

  • --servername: name of the server
  • --user: username of a user account on the server

Note: For authentication, you can specify the username (–user <username>) on the command line, but never the password. For security reasons, the system must prompt you for the password.

What follows are three options for remote connections.

System User

pmd-cli --servername <server> --user <username>

Lightwave User

Before using this method, the pmd server must be joined or should be part of embedded Lightwave.

pmd-cli --servername <server> --user <username> --domain <lightwave_domain>

Kerberos spn

Before using this method, the client must run kinit successfully.

pmd-cli --servername <server> --spn <service_principal_name>

Component

<component> is one of the following values:

  • firewall
  • net
  • pkg
  • usr

Firewall Management

The Photon Management Daemon provides CLI commands to help you get information about the firewall.

Syntax

pmd-cli [connection_auth_options] firewall <command> [command_options]

firewall help

Get help for firewall CLI commands.

pmd-cli firewall help

firewall rules

Get a list of the current persistent firewall rules.

pmd-cli firewall rules [command-options]

This command returns information about each firewall rule, such as the chain to which it belongs, the policy to enforce, the table to manipulate, and so on.

Add a new firewall rule.

pmd-cli firewall rules --chain <chain_name> --add <rule_specification>

Example:

pmd-cli firewall rules --chain INPUT --add "-p tcp -m tcp --dport 21 -j ACCEPT"

Note: To confirm that the firewall rule was added, run iptables -S. Running pmd-cli firewall rules lists only persistent rules.

Delete a new firewall rule.

pmd-cli firewall rules --chain <chain_name> --delete <rule_specification>

Note: To confirm that the firewall rule was removed, run iptables -S. Running pmd-cli firewall rules lists only persistent rules.

Make firewall rule changes peristent (add –persist flag)

pmd-cli firewall rules --chain <chain_name> --add <rule_specification> --persist

firewall version

Get the version number of the fwmgmt component on the server.

pmd-cli firewall version

Network Management

The Photon Management Daemon provides CLI commands to help you manage network interfaces.

Syntax

pmd-cli [connection_auth_options] net <command> [command_options]

Many of these commands require the interface name (–interface <ifname>). Command options are described below.

Get the mac address, mtu, link state, and link mode for the specified interface.

pmd-cli net link_info --get --interface <ifname>

Set the MAC address, mode (manual or auto), link state (up or down), link mode (manual or auto), and MTU for the specified interface.

pmd-cli net link_info --set --interface <ifname> --macaddr <mac_address> --mode <manual|auto> --state <up|down> --mtu <mtu>

net ip4_address

Get the IPv4 address for the specified interface.

pmd-cli net ip4_address --get --interface <ifname>

Set the IPv4 address (dot-decimal/prefix notation), mode (dhcp, static, or none), and (optionally) the default gateway for the specified interface.

pmd-cli net ip4_address --set --interface <ifname> --mode <dhcp|static|none> --addr <IPv4Address/prefix> --gateway <gateway_address>

net ip6_address

Get IPv6 address(es) for the specified interface.

pmd-cli net ip6_address --get --interface <ifname>

Add one or more IPv6 addresses (comma-separated list in colon-separated/prefix notation) to the specified interface.

pmd-cli net ip6_address --add --interface <ifname> --addrlist <IPv6Addr1/prefix,IPv6Addr2/prefix,...>

Delete one or more IPv6 addresses (comma-separated list in colon-separated/prefix notation) from the specified interface.

pmd-cli net ip6_address --del --interface <ifname> --addrlist <IPv6Addr1/prefix,IPv6Addr2/prefix,...>

Set the DHCP mode (1=enable, 0=disable) and autoconfigure settings (1=enable, 0=disable) for the specified interface.

pmd-cli net ip6_address --set --interface <ifname> --dhcp <1|0> --autoconf <1|0>

net ip_route

Get the static IP route for the specified interface.

pmd-cli net ip_route --get --interface <ifname>

Add the static IP route (gateway IP, destination network, and metric) to the specified interface.

pmd-cli net ip_route --add --interface <ifname> --gateway <GatewayIP> --destination <DestinationNetwork/prefix> --metric <N>

Delete the specified static IP route from the specified interface.

pmd-cli net ip_route --del --interface <ifname> --destination <DestinationNetwork/prefix>

net dns_servers

Get the list of DNS servers.

pmd-cli net dns_servers --get

Set the DNS mode (dhcp or static) for one or more DNS servers (comma-separated list).

pmd-cli net dns_servers --set --mode <dhcp|static> --servers <server1,server2,...>

Add a DNS server to the list of DNS servers.

pmd-cli net dns_servers --add --servers <server>

Remove the specified DNS server from the list of DNS servers.

pmd-cli net dns_servers --del --servers <server>

net dns_domains

Get the list of DNS domains.

pmd-cli net dns_domains --get

Set the list of DNS domains (one or more DNS domains in a comma-separated list).

pmd-cli net dns_domains --set --domains <domain1,domain2,...>

Add a DNS domain to the list of DNS domains.

pmd-cli net dns_domains --add --domains <domain1>

Delete a DNS domain from the list of DNS domains.

pmd-cli net dns_domains --del --domains <domain1>

net dhcp_duid

Get the DHCP DUID (optionally interface-specific DUID) for the system.

pmd-cli net dhcp_duid --get

Set the DHCP DUID for the system, optionally per-interface if the interface is specified.

pmd-cli net dhcp_duid --set --duid <duid>

net if_iaid

Get the IAID for the specified interface.

pmd-cli net if_iaid --get --interface <ifname>

Set the IAID for the specified interface.

pmd-cli net if_iaid --set --interface <ifname> --iaid <iaid>

net ntp_servers

Get the NTP servers list.

pmd-cli net ntp_servers --get

Set the NTP servers list.

pmd-cli net ntp_servers --set --servers <server1,server2,...>

Add the specified server to the NTP servers list.

pmd-cli net ntp_servers --add --servers <server>

Delete the specified server from the NTP servers list.

pmd-cli net ntp_servers --del --servers <server>

net hostname

Get the system hostname.

pmd-cli net hostname --get

Set the system hostname.

pmd-cli net hostname --set --name <hostname>

Wait for the specified network interface to be up and usable (it can send and receive packets).

pmd-cli net wait_for_link --interface <ifname> --timeout <timeout>

The timeout (in seconds) specifies the maximum time to wait. Specify 0 for no timeout (wait indefinitely).

Note: You might need to use net wait_for_ip to wait until you can send and receive IP packets.

net wait_for_ip

Wait for the specified interface to acquire a valid IP address for the specified address type.

pmd-cli net wait_for_ip --interface <ifname> --timeout <timeout> --addrtype <ipv4,ipv6,static_ipv4,static_ipv6,dhcp_ipv4,dhcp_ipv6,auto_ipv6,link_local_ipv6>

The timeout (in seconds) specifies the maximum time to wait. Specify 0 for no timeout (wait indefinitely).

net error_info

Get error information about the specified error code.

pmd-cli net error_info --errcode <error_code>

Here is a list of error codes:

  • 4097 - invalid parameter
  • 4098 - not supported
  • 4099 - out of memory
  • 4100 - value not found
  • 4101 - value exists
  • 4102 - invalid interface
  • 4103 - invalid mode
  • 4104 - bad configuration file
  • 4105 - write failed
  • 4106 - timout
  • 4107 - DCHP timeout

net net_info

Get the specified network configuration parameter for the specified object.

pmd-cli net net_info --get --object <ifname or filename> --paramname <param_name>

Note: The object can be an interface name (for example, "eth0") or a file name (for example, /etc/systemd/resolved.conf).

Set the value of the specified network configuration parameter for the specified object (interface or file).

pmd-cli net net_info --set --object <ifname or filename> --paramname <param_name> --paramvalue <param_value>

Note : You can add (+) or remove (-) a parameter by prepending the parameter name with + or -.

Package Management

The Photon Management Daemon provides CLI commands to help you manage packages and repositories.

Syntax

pmd-cli [connection options] pkg <command> [command options]

If a command allows for multiple package names, simply specify on the command line, separated by spaces.

pmd-cli pkg info <package_name_1> <package_name_2> <package_name_3> ...

pkg help

Get help text for pkg CLI commands.

pmd-cli pkg help

pkg count

Get the total number of packages in all repos (including installed).

pmd-cli pkg count

pkg distro-sync

Synchronize installed packages to the latest available versions. If no packages are specified, then all available packages are synchronized.

pmd-cli pkg distro-sync

pkg downgrade

Downgrade the specified package(s). If no packages are specified, then all available packages are downgraded.

pmd-cli pkg downgrade <package_name>

pkg erase

Remove the specified package(s).

pmd-cli pkg erase <package_name>

pkg info

Get general information about the specified package(s), such as name, version, release, repository, install size, and so on.

pmd-cli pkg info <package_name>

If no packages are specified, then this command returns information about all packages.

## pkg install

Install the specified package(s). Update the package if an update is available.

pmd-cli pkg install <package_name>

pkg list

Get a list of packages or groups of packages.

pmd-cli pkg list

You can filter by group: all, available, installed, extras, obsoletes, recent, and upgrades.

pmd-cli pkg list upgrades

You can also filter by wildcards.

pmd-cli pkg list ph\*

pkg reinstall

Reinstall the specified package(s).

pmd-cli pkg reinstall <package_name>

pkg repolist

Get a list of the configured software repositories.

pmd-cli pkg repolist

This command returns a list of the configured software repositories, including the repository ID, repitory name, and status.

pkg update

Update the specified package(s).

pmd-cli pkg update <package_name>

If no parameters are specified, then all available packages are updated.

pkg updateinfo

Get the update information on all enabled repositories (status = enabled). If this command returns nothing, then the update information may not exist on the server.

pmd-cli pkg updateinfo

User Management

The Photon Management Daemon provides CLI commands to help you manage users and user groups.

Syntax

pmd-cli [connection options] usr <command> [command options]

usr help

Display help text for user commands.

pmd-cli usr users

usr users

Get a list of users. This command returns information about each user, including their user name, user ID, user group (if applicable), home directory, and default shell.

pmd-cli usr users

usr useradd

Add a new user. Specify the username.

pmd-cli usr useradd <username>

The system assigns a user ID, home directory, and default shell to the new user. The user group is unspecified.

usr userdel

Delete the specified user.

pmd-cli usr userdel <username>

usr userid

Get the user ID of the specified user (by name). Used to determine whether the specified user exists.

pmd-cli usr userid <username>

usr groups

Get a list of user groups. This command returns the following information about each user group: user group name and user group ID.

pmd-cli usr groups

usr groupadd

Add a new user group.

pmd-cli usr groupadd <user_group_name>

The system assigns a group ID to the new user group.

usr groupdel

Delete the specified user group.

pmd-cli usr groupdel <user_group_name>

usr groupid

Get the group ID for the specified user group (by name). Used to determine whether the specified user group exists.

pmd-cli usr groupid <user_group_name>

usr version

Get the version of the usermgmt component at the server.

pmd-cli usr version
Last modified March 5, 2021: setting up github actions (3f54ed117)