Network supervision » History » Version 1
Bruno STEVANT, 07/19/2018 02:08 PM
1 | 1 | Bruno STEVANT | h1. Network supervision |
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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) |