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Designdesk.org, brief how-tos and tutorials about linux, security, servers and how to maintain them.
The tutorials are aimed at Debian based systems but they should work for most distributions.
Device eth0 [192.168.0.37] (1/3):
==============================================================================================
Incoming:
### # ###### #
### # ###### #
### # ###### #
### # ###### #
###..... .....#..######... .. .. .. | .##| ##|..#..... .. .. Curr: 83.66 kBit/s
######## ################# ## ## ## # #### ########### ## ## Avg: 4.78 MBit/s
######## ################# ## ## #### #### ########### ## ## Min: 49.23 kBit/s
######## ################# ## ## ####.#### ########### ## ## Max: 8.37 MBit/s
######## ################# ## ## ######### ########### ## ## Ttl: 251.66 GByte
Outgoing:
### ##
### ##
### ##
###|##
######
######
######
###### Curr: 102.90 kBit/s
###### Avg: 2.66 MBit/s
# .. ####### Min: 64.80 kBit/s
|. ##. ## #######| Max: 46.48 MBit/s
.. ###| ###. |##|######## ## Ttl: 497.26 GByte
Output from nload for illustrative purpose. apt-get install nload
(debian 8.6 64bit / Linux 3.16.0-4-amd64) Uptime: 7331 days, 6:12:31
CPU 2.5% nice: 0.0% LOAD 4-core MEM 18.7% active: 602M SWAP 0.8%
user: 1.8% irq: 0.0% 1 min: 0.39 total: 3.62G inactive: 2.52G total: 1.56G
system: 0.6% iowait: 0.1% 5 min: 0.29 used: 693M buffers: 305M used: 13.1M
idle: 97.5% steal: 0.0% 15 min: 0.25 free: 2.94G cached: 2.52G free: 1.54G
NETWORK Rx/s Tx/s TASKS 133 (152 thr), 1 run, 132 slp, 0 oth sorted automatically by cpu_percent
eth0 40Kb 698Kb
lo 504b 504b CPU% MEM% VIRT RES PID USER NI S TIME+ IOR/s IOW/s Command
tun0 0b 0b 4.7 0.6 80.8M 20.9M 24788 root 0 R 0:03.28 0 0 /usr/bin/python3 /usr/b
CPU affinity: 4 cores
DISK I/O R/s W/s Memory info: shared 8.12M text 3.70M lib 0 data 12.3M dirty 0 swap 0
dm-0 0 0 Openned: threads 1 files 6 TCP 0 UDP 0
loop0 0 0 IO nice: No specific I/O priority
sda1 243K 0 3.2 0.4 343M 13.6M 7604 userx 0 S 32:04.30 0 0 process
sdb1 0 0 1.9 6.4 436M 236M 6213 userx 0 S 58:07.20 243K 0 process
sdc1 0 9K 0.3 0.0 0 0 7 root 0 S 15:59.50 0 0 rcu_sched
sdc2 0 0 0.0 0.0 0 0 7572 root -20 S 0:00.00 0 0 loop0
sdc5 0 0 0.0 0.2 276M 5.85M 19201 root 0 S 0:00.14 0 0 /usr/sbin/smbd -D
0.0 0.0 0 0 24750 root 0 S 0:00.70 0 0 kworker/2:3
FILE SYS Used Total 0.0 0.0 0 0 24227 root 0 S 0:00.00 0 0 kworker/1:1
/ (sdc1) 2.88G 35.0G 0.0 0.0 0 0 29 root 0 S 0:00.79 0 0 khungtaskd
/storage 2.56T 5.41T 0.0 0.0 0 0 31 root 5 S 0:00.00 0 0 ksmd
0.0 0.0 0 0 24749 root 0 S 0:00.00 0 0 kworker/2:2
0.0 0.0 0 0 104 root -20 S 0:00.00 0 0 scsi_tmf_1
0.0 0.0 0 0 22 root 0 S 0:02.10 0 0 migration/3
0.0 0.0 0 0 8 root 0 S 0:00.00 0 0 rcu_bh
0.0 0.0 0 0 119 root -20 S 0:56.94 0 0 kworker/0:1H
0.0 0.0 0 0 18 root 0 S 2:09.59 0 0 ksoftirqd/2
0.0 0.0 0 0 42 root -20 S 0:00.00 0 0 vmstat
0.0 0.0 0 0 15 root -20 S 0:00.00 0 0 kworker/1:0H
0.0 0.0 0 0 11 root 0 S 0:09.63 0 0 watchdog/1
0.0 0.0 0 0 118 root -20 S 3:45.60 0 0 kworker/3:1H
0.0 0.3 141M 12.6M 1180 userx 0 S 8:44.35 0 0 process
0.0 0.0 0 0 2 root 0 S 0:00.40 0 0 kthreadd
0.0 0.0 0 0 341 root -20 S 0:00.00 0 0 kvm-irqfd-clean
2016-11-26 23:19:14 No warning or critical alert detected
Output from glances for illustrative purpose. apt-get install glances
nct6776-isa-0290
Adapter: ISA adapter
Vcore: +0.94 V (min = +0.00 V, max = +1.74 V)
in1: +0.18 V (min = +0.00 V, max = +0.00 V) ALARM
AVCC: +3.34 V (min = +2.98 V, max = +3.63 V)
+3.3V: +3.33 V (min = +2.98 V, max = +3.63 V)
in4: +0.54 V (min = +0.00 V, max = +0.00 V) ALARM
in5: +1.83 V (min = +0.00 V, max = +0.00 V) ALARM
in6: +1.68 V (min = +0.00 V, max = +0.00 V) ALARM
3VSB: +3.46 V (min = +2.98 V, max = +3.63 V)
Vbat: +3.28 V (min = +2.70 V, max = +3.63 V)
fan1: 0 RPM (min = 0 RPM)
fan2: 0 RPM (min = 0 RPM)
fan3: 0 RPM (min = 0 RPM)
fan4: 0 RPM (min = 0 RPM)
fan5: 0 RPM (min = 0 RPM)
SYSTIN: +39.0°C (high = +0.0°C, hyst = +0.0°C) ALARM sensor = therm istor
CPUTIN: +41.0°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor
AUXTIN: -12.5°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor
PCH_CHIP_TEMP: +0.0°C
PCH_CPU_TEMP: +0.0°C
PCH_MCH_TEMP: +0.0°C
cpu0_vid: +0.000 V
intrusion0: OK
intrusion1: OK
beep_enable: disabled
k10temp-pci-00c3
Adapter: PCI adapter
temp1: +59.2°C (high = +70.0°C)
(crit = +100.0°C, hyst = +99.0°C)
fam15h_power-pci-00c4
Adapter: PCI adapter
power1: 0.00 W (crit = 15.00 W)
Output from sensors for illustrative purpose. apt-get install lm-sensors && sensors-detect
/dev/sda: WDC WD60EFRX-68L0BN1: 35°C
Output from hddtemp /dev/sda for illustrative purpose. apt-get install hddtemp
top - 23:31:28 up 10 days, 6:24, 2 users, load average: 0.20, 0.32, 0.31
Tasks: 121 total, 2 running, 119 sleeping, 0 stopped, 0 zombie
%Cpu(s): 1.3 us, 0.7 sy, 0.0 ni, 97.2 id, 0.8 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem: 3796800 total, 3662848 used, 133952 free, 311176 buffers
KiB Swap: 1632252 total, 13368 used, 1618884 free. 2656592 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7604 userx 20 0 351228 13880 7844 S 3.7 0.4 32:26.95 process
6213 userx 20 0 446440 241236 7200 S 2.7 6.4 2460:34 process
19203 userx 20 0 287968 17104 13728 S 1.3 0.5 0:52.32 smbd
7 root 20 0 0 0 0 S 0.3 0.0 16:00.86 rcu_sched
1049 root 20 0 246936 6788 4836 S 0.3 0.2 8:24.52 winbindd
1087 root 20 0 246936 4540 2576 S 0.3 0.1 4:40.35 winbindd
24226 root 20 0 0 0 0 S 0.3 0.0 0:02.32 kworker/0:2
25097 root 20 0 23520 3064 2608 R 0.3 0.1 0:00.03 top
1 root 20 0 28988 4728 2760 S 0.0 0.1 0:21.06 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.04 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 1:17.06 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root rt 0 0 0 0 S 0.0 0.0 0:02.53 migration/0
10 root rt 0 0 0 0 S 0.0 0.0 0:09.96 watchdog/0
11 root rt 0 0 0 0 S 0.0 0.0 0:09.64 watchdog/1
12 root rt 0 0 0 0 S 0.0 0.0 0:01.98 migration/1
13 root 20 0 0 0 0 S 0.0 0.0 1:16.31 ksoftirqd/1
15 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:0H
16 root rt 0 0 0 0 S 0.0 0.0 0:09.70 watchdog/2
Output from top for illustrative purpose.