I am having trouble configuring Graylog to send encrypted email. I used this command from the docs.
sudo graylog-ctl set-email-config smtp.our_domain.com --user=our_user --password=our_password --port 587
I receive the below error:
Could not send test alert notification Sending test alert notification failed with message: Sending the email to the following server failed : smtp.our_domain:587
Our email admin advises that the email logs indicate that connection is not encrypted. Graylog is sending the email unencrypted. It looks configured correctly?
transport_email_use_auth = true transport_email_use_tls = true transport_email_use_ssl = true
# If you are running more than one instances of graylog-server you have to select one of these # instances as master. The master will perform some periodical tasks that non-masters won't perform. is_master = true # The auto-generated node ID will be stored in this file and read after restarts. It is a good idea # to use an absolute file path here if you are starting graylog-server from init scripts or similar. node_id_file = /var/opt/graylog/graylog-server-node-id # You MUST set a secret to secure/pepper the stored user passwords here. Use at least 64 characters. # Generate one by using for example: pwgen -N 1 -s 96 password_secret = our_secret # the default root user is named 'admin' root_username = admin # You MUST specify a hash password for the root user (which you only need to initially set up the # system and in case you lose connectivity to your authentication backend) # This password cannot be changed using the API or via the web interface. If you need to change it, # modify it in this file. # Create one by using for example: echo -n yourpassword | shasum -a 256 # and put the resulting hash value into the following line root_password_sha2 = our_secret # The email address of the root user. # Default is empty #root_email = "" # The time zone setting of the root user. # Default is UTC root_timezone = EST5EDT # Set plugin directory here (relative or absolute) plugin_dir = /opt/graylog/plugin # REST API listen URI. Must be reachable by other graylog-server nodes if you run a cluster. rest_listen_uri = http://0.0.0.0:9000/api # Web interface listen URI web_listen_uri = http://0.0.0.0:9000/ # REST API transport address. Defaults to the value of rest_listen_uri. Exception: If rest_listen_uri # is set to a wildcard IP address (0.0.0.0) the first non-loopback IPv4 system address is used. # If set, his will be promoted in the cluster discovery APIs, so other nodes may try to connect on # this address and it is used to generate URLs addressing entities in the REST API. (see rest_listen_uri) # You will need to define this, if your Graylog server is running behind a HTTP proxy that is rewriting # the scheme, host name or URI. # Web interface endpoint URI. This setting can be overriden on a per-request basis with the X-Graylog-Server-URL header. # Default: $rest_transport_uri # Enable CORS headers for REST api. This is necessary for JS-clients accessing the server directly. # If these are disabled, modern browsers will not be able to retrieve resources from the server. # This is disabled by default. Uncomment the next line to enable it. rest_enable_cors = true # Enable GZIP support for REST api. This compresses API responses and therefore helps to reduce # overall round trip times. This is disabled by default. Uncomment the next line to enable it. #rest_enable_gzip = true # Enable HTTPS support for the REST API. This secures the communication with the REST API with # TLS to prevent request forgery and eavesdropping. This is disabled by default. Uncomment the # next line to enable it. #rest_enable_tls = true # The X.509 certificate file to use for securing the REST API. #rest_tls_cert_file = /path/to/graylog2.crt # The private key to use for securing the REST API. #rest_tls_key_file = /path/to/graylog2.key # The password to unlock the private key used for securing the REST API. #rest_tls_key_password = secret # The maximum size of a single HTTP chunk in bytes. #rest_max_chunk_size = 8192 # The maximum size of the HTTP request headers in bytes. #rest_max_header_size = 8192 # The maximal length of the initial HTTP/1.1 line in bytes. #rest_max_initial_line_length = 4096 # The size of the thread pool used exclusively for serving the REST API. #rest_thread_pool_size = 16 # The size of the worker thread pool used exclusively for serving the REST API. #rest_worker_threads_max_pool_size = 16 # Disable checking the version of Elasticsearch for being compatible with this Graylog release. # WARNING: Using Graylog with unsupported and untested versions of Elasticsearch may lead to data loss! #elasticsearch_disable_version_check = true # Disable message retention on this node, i. e. disable Elasticsearch index rotation. #no_retention = false # How many Elasticsearch shards and replicas should be used per index? Note that this only applies to newly created indices. elasticsearch_shards = 4 elasticsearch_replicas = 1 # Prefix for all Elasticsearch indices and index aliases managed by Graylog. elasticsearch_index_prefix = graylog # Do you want to allow searches with leading wildcards? This can be extremely resource hungry and should only # be enabled with care. See also: http://graylog2.org/resources/documentation/general/queries allow_leading_wildcard_searches = true # Do you want to allow searches to be highlighted? Depending on the size of your messages this can be memory hungry and # should only be enabled after making sure your Elasticsearch cluster has enough memory. allow_highlighting = false # List of Elasticsearch hosts Graylog should connect to. # Need to be specified as a comma-separated list of valid URIs for the http ports of your elasticsearch nodes. # If one or more of your elasticsearch hosts require authentication, include the credentials in each node URI that # requires authentication. elasticsearch_hosts = http://our_ip:9200 # Maximum amount of time to wait for successfull connection to Elasticsearch HTTP port. #elasticsearch_connect_timeout = 10s # Maximum amount of time to wait for reading back a response from an Elasticsearch server. #elasticsearch_socket_timeout = 60s # Maximum idle time for an Elasticsearch connection. If this is exceeded, this connection will # be tore down. #elasticsearch_idle_timeout = -1s # Maximum number of total connections to Elasticsearch. elasticsearch_max_total_connections = 20 # Maximum number of total connections per Elasticsearch route (normally this means per # elasticsearch server). elasticsearch_max_total_connections_per_route = 2 # Enable automatic Elasticsearch node discovery through Nodes Info, # see https://www.elastic.co/guide/en/elasticsearch/reference/5.4/cluster-nodes-info.html # # WARNING: Automatic node discovery does not work if Elasticsearch requires authentication, e. g. with Shield. # elasticsearch_discovery_enabled = true # Filter for including/excluding Elasticsearch nodes in discovery according to their custom attributes, # see https://www.elastic.co/guide/en/elasticsearch/reference/5.4/cluster.html#cluster-nodes # # Default: empty #elasticsearch_discovery_filter = rack:42 # Frequency of the Elasticsearch node discovery. #elasticsearch_discovery_frequency = 30s # Analyzer (tokenizer) to use for message and full_message field. The "standard" filter usually is a good idea. # All supported analyzers are: standard, simple, whitespace, stop, keyword, pattern, language, snowball, custom # Elasticsearch documentation: http://www.elasticsearch.org/guide/reference/index-modules/analysis/ # Note that this setting only takes effect on newly created indices. elasticsearch_analyzer = standard # Global request timeout for Elasticsearch requests (e. g. during search, index creation, or index time-range # calculations) based on a best-effort to restrict the runtime of Elasticsearch operations. # Default: 1m #elasticsearch_request_timeout = 1m # Batch size for the Elasticsearch output. This is the maximum (!) number of messages the Elasticsearch output # module will get at once and write to Elasticsearch in a batch call. If the configured batch size has not been # reached within output_flush_interval seconds, everything that is available will be flushed at once. Remember # that every outputbuffer processor manages its own batch and performs its own batch write calls. # ("outputbuffer_processors" variable) output_batch_size = 500 # Flush interval (in seconds) for the Elasticsearch output. This is the maximum amount of time between two # batches of messages written to Elasticsearch. It is only effective at all if your minimum number of messages # for this time period is less than output_batch_size * outputbuffer_processors. output_flush_interval = 1 # As stream outputs are loaded only on demand, an output which is failing to initialize will be tried over and # over again. To prevent this, the following configuration options define after how many faults an output will # not be tried again for an also configurable amount of seconds. output_fault_count_threshold = 5 output_fault_penalty_seconds = 30 # The number of parallel running processors. # Raise this number if your buffers are filling up. processbuffer_processors = 5 outputbuffer_processors = 3 #outputbuffer_processor_keep_alive_time = 5000 #outputbuffer_processor_threads_core_pool_size = 3 #outputbuffer_processor_threads_max_pool_size = 30 # UDP receive buffer size for all message inputs (e. g. SyslogUDPInput). #udp_recvbuffer_sizes = 1048576 # Wait strategy describing how buffer processors wait on a cursor sequence. (default: sleeping) # Possible types: # - yielding # Compromise between performance and CPU usage. # - sleeping # Compromise between performance and CPU usage. Latency spikes can occur after quiet periods. # - blocking # High throughput, low latency, higher CPU usage. # - busy_spinning # Avoids syscalls which could introduce latency jitter. Best when threads can be bound to specific CPU cores. processor_wait_strategy = blocking # Size of internal ring buffers. Raise this if raising outputbuffer_processors does not help anymore. # For optimum performance your LogMessage objects in the ring buffer should fit in your CPU L3 cache. # Start server with --statistics flag to see buffer utilization. # Must be a power of 2. (512, 1024, 2048, ...) ring_size = 65536 inputbuffer_ring_size = 65536 inputbuffer_processors = 2 inputbuffer_wait_strategy = blocking # Enable the disk based message journal. message_journal_enabled = true # The directory which will be used to store the message journal. The directory must me exclusively used by Graylog and # must not contain any other files than the ones created by Graylog itself. message_journal_dir = /var/opt/graylog/data/journal # Journal hold messages before they could be written to Elasticsearch. # For a maximum of 12 hours or 5 GB whichever happens first. # During normal operation the journal will be smaller. #message_journal_max_age = 12h message_journal_max_size = 1gb #message_journal_flush_age = 1m #message_journal_flush_interval = 1000000 #message_journal_segment_age = 1h #message_journal_segment_size = 100mb # Number of threads used exclusively for dispatching internal events. Default is 2. async_eventbus_processors = 2 # How many seconds to wait between marking node as DEAD for possible load balancers and starting the actual # shutdown process. Set to 0 if you have no status checking load balancers in front. lb_recognition_period_seconds = 3 # Every message is matched against the configured streams and it can happen that a stream contains rules which # take an unusual amount of time to run, for example if its using regular expressions that perform excessive backtracking. # This will impact the processing of the entire server. To keep such misbehaving stream rules from impacting other # streams, Graylog limits the execution time for each stream. # The default values are noted below, the timeout is in milliseconds. # If the stream matching for one stream took longer than the timeout value, and this happened more than "max_faults" times # that stream is disabled and a notification is shown in the web interface. # stream_processing_timeout = 2000 # stream_processing_max_faults = 3 # Length of the interval in seconds in which the alert conditions for all streams should be checked # and alarms are being sent. alert_check_interval = 60 # Since 0.21 the graylog server supports pluggable output modules. This means a single message can be written to multiple # outputs. The next setting defines the timeout for a single output module, including the default output module where all # messages end up. This setting is specified in milliseconds. # Time in milliseconds to wait for all message outputs to finish writing a single message. #output_module_timeout = 10000 # Time in milliseconds after which a detected stale master node is being rechecked on startup. #stale_master_timeout = 2000 # Time in milliseconds which Graylog is waiting for all threads to stop on shutdown. # shutdown_timeout = 30000 # MongoDB Configuration mongodb_uri = mongodb://127.0.0.1:27017/graylog # Raise this according to the maximum connections your MongoDB server can handle if you encounter MongoDB connection problems. mongodb_max_connections = 100 # Number of threads allowed to be blocked by MongoDB connections multiplier. Default: 5 # If mongodb_max_connections is 100, and mongodb_threads_allowed_to_block_multiplier is 5, then 500 threads can block. More than that and an exception will be thrown. # http://api.mongodb.org/java/current/com/mongodb/MongoOptions.html#threadsAllowedToBlockForConnectionMultiplier mongodb_threads_allowed_to_block_multiplier = 5 # Drools Rule File (Use to rewrite incoming log messages) # See: http://graylog2.org/resources/documentation/general/rewriting # Email transport transport_email_enabled = true transport_email_hostname = smtp.our_domain.com transport_email_port = 587 transport_email_use_auth = true transport_email_use_tls = true transport_email_use_ssl = true transport_email_auth_username = our_account transport_email_auth_password = our_password transport_email_subject_prefix = [graylog] transport_email_from_email = graylog@graylog # Specify and uncomment this if you want to include links to the stream in your stream alert mails. # This should define the fully qualified base url to your web interface exactly the same way as it is accessed by your users. # transport_email_web_interface_url = http://graylog # The default connect timeout for outgoing HTTP connections. # Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds). # Default: 5s #http_connect_timeout = 5s # The default read timeout for outgoing HTTP connections. # Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds). # Default: 10s #http_read_timeout = 10s # The default write timeout for outgoing HTTP connections. # Values must be a positive duration (and between 1 and 2147483647 when converted to milliseconds). # Default: 10s #http_write_timeout = 10s # HTTP proxy for outgoing HTTP calls # Disable the optimization of Elasticsearch indices after index cycling. This may take some load from Elasticsearch # on heavily used systems with large indices, but it will decrease search performance. The default is to optimize # cycled indices. #disable_index_optimization = true # Optimize the index down to <= index_optimization_max_num_segments. A higher number may take some load from Elasticsearch # on heavily used systems with large indices, but it will decrease search performance. The default is 1. #index_optimization_max_num_segments = 1 # Disable the index range calculation on all open/available indices and only calculate the range for the latest # index. This may speed up index cycling on systems with large indices but it might lead to wrong search results # in regard to the time range of the messages (i. e. messages within a certain range may not be found). The default # is to calculate the time range on all open/available indices. #disable_index_range_calculation = true # The threshold of the garbage collection runs. If GC runs take longer than this threshold, a system notification # will be generated to warn the administrator about possible problems with the system. Default is 1 second. #gc_warning_threshold = 1s # Connection timeout for a configured LDAP server (e. g. ActiveDirectory) in milliseconds. #ldap_connection_timeout = 2000 # Enable collection of Graylog-related metrics into MongoDB #enable_metrics_collection = false # Disable the use of SIGAR for collecting system stats #disable_sigar = false # The default cache time for dashboard widgets. (Default: 10 seconds, minimum: 1 second) dashboard_widget_default_cache_time = 10s # Automatically load content packs in "content_packs_dir" on the first start of Graylog. content_packs_loader_enabled = true # The directory which contains content packs which should be loaded on the first start of Graylog. content_packs_dir = /opt/graylog/contentpacks # A comma-separated list of content packs (files in "content_packs_dir") which should be applied on # the first start of Graylog. content_packs_auto_load = grok-patterns.json,content_pack_appliance.json