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Configuration.md

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Configuration

Debugging

In case a model plugin doesn't work correctly (ios, procurve, etc.), you can enable live debugging of SSH/Telnet sessions. Just add a debug option containing the value true to the input section. The log files will be created depending on the parent directory of the logfile option.

The following example will log an active ssh/telnet session /home/oxidized/.config/oxidized/log/<IP-Address>-<PROTOCOL>. The file will be truncated on each consecutive ssh/telnet session, so you need to put a tailf or tail -f on that file!

log: /home/oxidized/.config/oxidized/log

...

input:
  default: ssh, telnet
  debug: true
  ssh:
    secure: false

Privileged mode

To start privileged mode before pulling the configuration, Oxidized needs to send the enable command. You can globally enable this, by adding the following snippet to the global section of the configuration file.

vars:
   enable: S3cre7

Removing secrets

To strip out secrets from configurations before storing them, Oxidized needs the remove_secret flag. You can globally enable this by adding the following snippet to the global section of the configuration file.

vars:
  remove_secret: true

Device models that contain substitution filters to remove sensitive data will now be run on any fetched configuration.

As a partial example from ios.rb:

  cmd :secret do |cfg|
    cfg.gsub! /^(snmp-server community).*/, '\\1 <configuration removed>'
    (...)
    cfg
  end

The above strips out snmp community strings from your saved configs.

NOTE: Removing secrets reduces the usefulness as a full configuration backup, but it may make sharing configs easier.

Disabling SSH exec channels

Oxidized uses exec channels to make information extraction simpler, but there are some situations where this doesn't work well, e.g. configuring devices. This feature can be turned off by setting the ssh_no_exec variable.

vars:
  ssh_no_exec: true

SSH Auth Methods

By default, Oxidized registers the following auth methods: none, publickey and password. However you can configure this globally, by groups, models or nodes.

vars:
    auth_methods: [ "none", "publickey", "password", "keyboard-interactive" ]

SSH Proxy Command

Oxidized can ssh through a proxy as well. To do so we just need to set ssh_proxy variable with the proxy host information.

This can be provided on a per-node basis by mapping the proper fields from your source.

An example for a csv input source that maps the 4th field as the ssh_proxy value.

...
map:
  name: 0
  model: 1
vars_map:
  enable: 2
  ssh_proxy: 3
...

FTP Passive Mode

Oxidized uses ftp passive mode by default. Some devices require passive mode to be disabled. To do so, we can set input.ftp.passive to false - this will make use of FTP active mode.

input:
  ftp:
    passive: false

Advanced Configuration

Below is an advanced example configuration. You will be able to (optionally) override options per device. The router.db format used is hostname:model:username:password:enable_password. Hostname and model will be the only required options, all others override the global configuration sections.

---
username: oxidized
password: S3cr3tx
model: junos
interval: 3600 #interval in seconds
log: ~/.config/oxidized/log
debug: false
threads: 30
timeout: 20
retries: 3
prompt: !ruby/regexp /^([\w.@-]+[#>]\s?)$/
vars:
  enable: S3cr3tx
groups: {}
rest: 127.0.0.1:8888
pid: ~/.config/oxidized/oxidized.pid
input:
  default: ssh, telnet
  debug: false
  ssh:
    secure: false
output:
  default: git
  git:
      user: Oxidized
      email: [email protected]
      repo: "~/.config/oxidized/oxidized.git"
source:
  default: csv
  csv:
    file: ~/.config/oxidized/router.db
    delimiter: !ruby/regexp /:/
    map:
      name: 0
      model: 1
      username: 2
      password: 3
    vars_map:
      enable: 4
model_map:
  cisco: ios
  juniper: junos

Advanced Group Configuration

For group specific credentials

groups:
  mikrotik:
    username: admin
    password: blank
  ubiquiti:
    username: ubnt
    password: ubnt

and add group mapping

map:
  model: 0
  name: 1
  group: 2

For model specific credentials

models:
  junos:
    username: admin
    password: password
  ironware:
    username: admin
    password: password
    vars:
      enable: enablepassword
  apc_aos:
    username: apc
    password: password

RESTful API and Web Interface

The RESTful API and Web Interface is enabled by configuring the rest: parameter in the config file. This parameter can optionally contain a relative URI.

# Listen on http://127.0.0.1:8888/
rest: 127.0.0.1:8888
# Listen on http://10.0.0.1:8000/oxidized/
rest: 10.0.0.1:8000/oxidized

Triggered backups

A node can be moved to head-of-queue via the REST API GET/POST /node/next/[NODE]. This can be useful to immediately schedule a fetch of the configuration after some other event such as a syslog message indicating a configuration update on the device.

In the default configuration this node will be processed when the next job worker becomes available, it could take some time if existing backups are in progress. To execute moved jobs immediately a new job can be added automatically:

next_adds_job: true

This will allow for a more timely fetch of the device configuration.

Disabling DNS resolution

In some instances it might not be desirable to attempt to resolve names of nodes. One such use case is when nodes are accessed through an SSH proxy, where the remote end resolves the names differently than the host on which Oxidized runs would.

Names can instead be passed verbatim to the input:

resolve_dns: false