Network supervision » History » Version 1
Bruno STEVANT, 07/19/2018 02:08 PM
| 1 | 1 | Bruno STEVANT | h1. Network supervision |
|---|---|---|---|
| 2 | 1 | Bruno STEVANT | |
| 3 | 1 | Bruno STEVANT | h2. Network and server monitoring |
| 4 | 1 | Bruno STEVANT | |
| 5 | 1 | Bruno STEVANT | h3. Graph monitoring with cacti |
| 6 | 1 | Bruno STEVANT | |
| 7 | 1 | Bruno STEVANT | Cacti is a tool to collect values from machines and network equipments and to represent them in graphs. |
| 8 | 1 | Bruno STEVANT | * "Cacti graphs":http://rsm.enstb.fr/graphs/ |
| 9 | 1 | Bruno STEVANT | * "Cacti Admin":http://hermes.ipv6.rennes.telecom-bretagne.eu/cacti/ (login: adminrsm) |
| 10 | 1 | Bruno STEVANT | |
| 11 | 1 | Bruno STEVANT | Values are collected using SNMPv2. Most of the equipments in the B25 lab use the read-only community ''b25'' or ''cacti'' ("example":/projects/srcd-disi-noc/repository/noc-rsm/entry/config/rhada.ipv6.enstb.fr/_etc/etc/snmp/snmpd.conf L.54) |
| 12 | 1 | Bruno STEVANT | |
| 13 | 1 | Bruno STEVANT | TODO: Make all SNMP configurations consistent |
| 14 | 1 | Bruno STEVANT | |
| 15 | 1 | Bruno STEVANT | The cacti tool is hosted on the [[Hermes]] server. Graphs are exported every 15min to be publicly accessible (See "Cacti config":http://hermes.ipv6.rennes.telecom-bretagne.eu/cacti/settings.php?tab=export). |
| 16 | 1 | Bruno STEVANT | |
| 17 | 1 | Bruno STEVANT | h3. IP monitoring (net-scan) |
| 18 | 1 | Bruno STEVANT | |
| 19 | 1 | Bruno STEVANT | A nmap instance regularly scans the public IPv4 range used in the lab to detect new pingable public IPv4 and/or new open TCP port. |
| 20 | 1 | Bruno STEVANT | |
| 21 | 1 | Bruno STEVANT | The script is run on a daily basis on the [[Hermes]] server. Results are commited on the SVN noc-rsm project and available here: source:/net-scan/ipv4+ports.scan |
| 22 | 1 | Bruno STEVANT | |
| 23 | 1 | Bruno STEVANT | Rule of thumb: Every pingable IPv4 address must be registered in the "reverse DNS file":/projects/srcd-disi-noc/repository/noc-rsm/entry/config/rhada.ipv6.enstb.fr/_etc/etc/bind/ipv4_rev |
| 24 | 1 | Bruno STEVANT | |
| 25 | 1 | Bruno STEVANT | TODO: Integrate ndpmon tool for IPv6 discovery and perform nmap scan on discovered IP. |
| 26 | 1 | Bruno STEVANT | |
| 27 | 1 | Bruno STEVANT | |
| 28 | 1 | Bruno STEVANT | h2. Failure notification |
| 29 | 1 | Bruno STEVANT | |
| 30 | 1 | Bruno STEVANT | Nagios is a tool which monitor service reachability. Notifications can be sent by mail when detecting a problem. Centreon is a web portal to configure Naagios. |
| 31 | 1 | Bruno STEVANT | |
| 32 | 1 | Bruno STEVANT | These tools have been deployed as part of the FAN (Fully Automated Nagios) Linux distribution. This distribution is currently used as a virtual machine running on the [[MacMini Server]]. |
| 33 | 1 | Bruno STEVANT | |
| 34 | 1 | Bruno STEVANT | * "Centreon/Nagios":http://fan.ipv6.enstb.fr/centreon/ (login adminrsm) |