O vnStat é um monitor de tráfego para Linux, podendo gerar relatórios de tráfego por hora, dia, mês, top10 e outros.
Para instalar o vnStat no Ubuntu/Debian:
sudo apt-get install vnstat
Para dar as permissões aos usuários:
sudo chmod o+x /usr/bin/vnstatFeito isso, há a necessidade de se criar um job no cron para que o vnStat passe a coletar as informações de tráfego:
sudo chmod o+wx /var/lib/vnstat/
vnstat -u -i ethx
substituindo "x" pela id de sua interface (0, 1, etc)
Agora execute o vnStat pelo console (é só digitar "vnstat" no prompt):
$ vnstat
Database updated: Mon Mar 8 22:15:00 2004
inet (eth0)
received: 1,002,061 MB (24.6%)
transmitted: 3,068,177 MB (75.4%)
total: 4,070,238 MB
rx | tx | total
-----------------------+------------+-----------
yesterday 335 MB | 6,881 MB | 7,216 MB
today 1,493 MB | 9,808 MB | 11,301 MB
-----------------------+------------+-----------
estimated 1,610 MB | 10,579 MB | 12,189 MB
(com 2 interfaces)
$ vnstat
rx / tx / total / estimated
Local (eth0):
yesterday 7,564 MB / 4,140 MB / 11,704 MB
today 33 MB / 112 MB / 145 MB / 195 MB
Internet (eth1):
yesterday 807 MB / 12,361 MB / 13,168 MB
today 1,079 MB / 708 MB / 1,787 MB / 2,423 MB
(listando os "top10"):
$ vnstat -t
inet (eth0)
# day rx | tx | total
--------------------------------+-------------+-------------
1 10.02.04 1235 MB | 2217 MB | 3452 MB
2 01.03.04 923.66 MB | 2138 MB | 3061 MB
3 09.02.04 958 MB | 1597 MB | 2555 MB
4 07.02.04 976 MB | 1316 MB | 2292 MB
5 08.02.04 1064 MB | 538 MB | 1602 MB
6 05.02.04 772 MB | 575 MB | 1347 MB
7 02.03.04 291.16 MB | 945.70 MB | 1236 MB
8 06.02.04 480 MB | 601 MB | 1081 MB
9 03.03.04 237.72 MB | 651.66 MB | 889.38 MB
10 04.02.04 352 MB | 454 MB | 806 MB
--------------------------------+-------------+-------------
(tráfego diário):
$ vnstat -d
inet (eth0)
day rx | tx | total
------------------------+-------------+--------------
24.02. 4.38 MB | 2.86 MB | 7.24 MB
25.02. 2.51 MB | 2.45 MB | 4.97 MB
26.02. 2.42 MB | 2.26 MB | 4.69 MB
27.02. 2.29 MB | 2.17 MB | 4.47 MB
28.02. 199.82 MB | 50.39 MB | 250.21 MB
29.02. 262.74 MB | 390.82 MB | 653.56 MB
01.03. 923.66 MB | 2,138 MB | 3,061 MB
02.03. 291.16 MB | 945.70 MB | 1,236 MB
03.03. 237.72 MB | 651.66 MB | 889.38 MB
04.03. 13.92 MB | 464.40 MB | 478.32 MB
05.03. 2.28 MB | 2.12 MB | 4.40 MB
06.03. 2.26 MB | 2.12 MB | 4.39 MB
07.03. 2.26 MB | 2.12 MB | 4.39 MB
08.03. 2.37 MB | 2.18 MB | 4.55 MB
------------------------+-------------+--------------
estimated 2 MB | 2 MB | 4 MB
(tráfego mensal):
$ vnstat -m
inet (eth0)
month rx | tx | total
------------------------+---------------+---------------
Mar '03 15,959 MB | 18,823 MB | 34,782 MB
Apr '03 24,645 MB | 20,440 MB | 45,085 MB
May '03 31,314 MB | 39,103 MB | 70,417 MB
Jun '03 28,116 MB | 42,988 MB | 71,104 MB
Jul '03 27,552 MB | 33,924 MB | 61,476 MB
Aug '03 37,498 MB | 38,189 MB | 75,687 MB
Sep '03 19,750 MB | 17,488 MB | 37,238 MB
Oct '03 3,999 MB | 4,492 MB | 8,491 MB
------------------------+---------------+---------------
estimated 18,479 MB | 20,758 MB | 39,237 MB
(cálculo da média do tráfego):
$ vnstat -tr
10386 packets sampled in 5 seconds
Traffic average for eth1
rx 112.21 kB/s 620 packets/s
tx 1444.77 kB/s 1456 packets/s
(outros flags):
vnstat --help
vnStat 1.4 by Teemu Toivola
-q, --query query database
-h, --hours show hours
-d, --days show days
-m, --months show months
-w, --weeks show weeks
-t, --top10 show top10
-s, --short use short output
-u, --update update database
-i, --iface change interface (default: eth0)
-?, --help short help
-v, --version show version
-tr, --traffic calculate traffic
See also "--longhelp" for complete options list and "man vnstat".
