# uname -a # 查看内核/操作系统/CPU信息
# head -n 1 /etc/issue # 查看操作系统版本
# cat /proc/cpuinfo # 查看CPU信息
# hostname # 查看计算机名
# lspci -tv # 列出所有PCI设备
# lsusb -tv # 列出所有USB设备
# lsmod # 列出加载的内核模块
# env # 查看环境变量资源
# free -m # 查看内存使用量和交换区使用量
# df -h # 查看各分区使用情况
# du -sh <目录名> # 查看指定目录的大小
# grep MemTotal /proc/meminfo # 查看内存总量
# grep MemFree /proc/meminfo # 查看空闲内存量
# uptime # 查看系统运行时间、用户数、负载
# cat /proc/loadavg # 查看系统负载磁盘和分区
# mount | column -t # 查看挂接的分区状态
# fdisk -l # 查看所有分区
# swapon -s # 查看所有交换分区
# hdparm -i /dev/hda # 查看磁盘参数(仅适用于IDE设备)
# dmesg | grep IDE # 查看启动时IDE设备检测状况网络
# ifconfig # 查看所有网络接口的属性
# iptables -L # 查看防火墙设置
# route -n # 查看路由表
# netstat -lntp # 查看所有监听端口
# netstat -antp # 查看所有已经建立的连接
# netstat -s # 查看网络统计信息进程
# ps -ef # 查看所有进程
# top # 实时显示进程状态用户
# w # 查看活动用户
# id <用户名> # 查看指定用户信息
# last # 查看用户登录日志
# cut -d: -f1 /etc/passwd # 查看系统所有用户
# cut -d: -f1 /etc/group # 查看系统所有组
# crontab -l # 查看当前用户的计划任务服务
# chkconfig –list # 列出所有系统服务
# chkconfig –list | grep on # 列出所有启动的系统服务程序
# rpm -qa # 查看所有安装的软件包
#查看CPU信息
[root@localhost ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 94
model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
stepping : 3
microcode : 0xbe
cpu MHz : 2599.946
cache size : 6144 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 invpcid rtm mpx rdseed adx smap clflushopt xsaveopt xsavec arat
bogomips : 5202.00
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 94
model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
stepping : 3
microcode : 0xbe
cpu MHz : 2599.946
cache size : 6144 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 invpcid rtm mpx rdseed adx smap clflushopt xsaveopt xsavec arat
bogomips : 5202.00
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 94
model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
stepping : 3
microcode : 0xbe
cpu MHz : 2599.946
cache size : 6144 KB
physical id : 1
siblings : 2
core id : 0
cpu cores : 2
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 invpcid rtm mpx rdseed adx smap clflushopt xsaveopt xsavec arat
bogomips : 5202.00
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 94
model name : Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
stepping : 3
microcode : 0xbe
cpu MHz : 2599.946
cache size : 6144 KB
physical id : 1
siblings : 2
core id : 1
cpu cores : 2
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 invpcid rtm mpx rdseed adx smap clflushopt xsaveopt xsavec arat
bogomips : 5202.00
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management:
[root@localhost ~]#
## 列出所有PCI设备
[root@localhost ~]# lspci -tv
-[0000:00]-+-00.0 Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge
+-01.0-[01]--
+-07.0 Intel Corporation 82371AB/EB/MB PIIX4 ISA
+-07.1 Intel Corporation 82371AB/EB/MB PIIX4 IDE
+-07.3 Intel Corporation 82371AB/EB/MB PIIX4 ACPI
+-07.7 VMware Virtual Machine Communication Interface
+-0f.0 VMware SVGA II Adapter
+-10.0 LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI
+-11.0-[02]--+-00.0 VMware USB1.1 UHCI Controller
| +-01.0 Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
| +-02.0 Ensoniq ES1371/ES1373 / Creative Labs CT2518
| -03.0 VMware USB2 EHCI Controller
+-15.0-[03]--
+-15.1-[04]--
+-15.2-[05]--
+-15.3-[06]--
+-15.4-[07]--
+-15.5-[08]--
+-15.6-[09]--
+-15.7-[0a]--
+-16.0-[0b]--
+-16.1-[0c]--
+-16.2-[0d]--
+-16.3-[0e]--
+-16.4-[0f]--
+-16.5-[10]--
+-16.6-[11]--
+-16.7-[12]--
+-17.0-[13]--
+-17.1-[14]--
+-17.2-[15]--
+-17.3-[16]--
+-17.4-[17]--
+-17.5-[18]--
+-17.6-[19]--
+-17.7-[1a]--
+-18.0-[1b]--
+-18.1-[1c]--
+-18.2-[1d]--
+-18.3-[1e]--
+-18.4-[1f]--
+-18.5-[20]--
+-18.6-[21]--
-18.7-[22]--
[root@localhost ~]#
## 查看计算机名
[root@localhost ~]# hostname
localhost.localdomain
[root@localhost ~]#
## 列出所有PCI设备
[root@localhost ~]# lspci -tv
-[0000:00]-+-00.0 Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge
+-01.0-[01]--
+-07.0 Intel Corporation 82371AB/EB/MB PIIX4 ISA
+-07.1 Intel Corporation 82371AB/EB/MB PIIX4 IDE
+-07.3 Intel Corporation 82371AB/EB/MB PIIX4 ACPI
+-07.7 VMware Virtual Machine Communication Interface
+-0f.0 VMware SVGA II Adapter
+-10.0 LSI Logic / Symbios Logic 53c1030 PCI-X Fusion-MPT Dual Ultra320 SCSI
+-11.0-[02]--+-00.0 VMware USB1.1 UHCI Controller
| +-01.0 Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
| +-02.0 Ensoniq ES1371/ES1373 / Creative Labs CT2518
| -03.0 VMware USB2 EHCI Controller
+-15.0-[03]--
+-15.1-[04]--
+-15.2-[05]--
+-15.3-[06]--
+-15.4-[07]--
+-15.5-[08]--
+-15.6-[09]--
+-15.7-[0a]--
+-16.0-[0b]--
+-16.1-[0c]--
+-16.2-[0d]--
+-16.3-[0e]--
+-16.4-[0f]--
+-16.5-[10]--
+-16.6-[11]--
+-16.7-[12]--
+-17.0-[13]--
+-17.1-[14]--
+-17.2-[15]--
+-17.3-[16]--
+-17.4-[17]--
+-17.5-[18]--
+-17.6-[19]--
+-17.7-[1a]--
+-18.0-[1b]--
+-18.1-[1c]--
+-18.2-[1d]--
+-18.3-[1e]--
+-18.4-[1f]--
+-18.5-[20]--
+-18.6-[21]--
-18.7-[22]--
[root@localhost ~]#
# lsmod # 列出加载的内核模块
[root@localhost ~]# lsmod
Module Size Used by
nls_utf8 12557 1
isofs 39844 1
tcp_lp 12663 0
rfcomm 69552 2
fuse 91874 3
xt_CHECKSUM 12549 1
ipt_MASQUERADE 12678 3
nf_nat_masquerade_ipv4 13412 1 ipt_MASQUERADE
tun 31621 1
ip6t_rpfilter 12595 1
ipt_REJECT 12541 4
nf_reject_ipv4 13373 1 ipt_REJECT
ip6t_REJECT 12625 2
nf_reject_ipv6 13717 1 ip6t_REJECT
xt_conntrack 12760 12
ip_set 36439 0
nfnetlink 14696 1 ip_set
ebtable_nat 12807 1
ebtable_broute 12731 1
bridge 136173 1 ebtable_broute
stp 12976 1 bridge
llc 14552 2 stp,bridge
ip6table_nat 12864 1
nf_conntrack_ipv6 18935 7
nf_defrag_ipv6 35104 1 nf_conntrack_ipv6
nf_nat_ipv6 14131 1 ip6table_nat
ip6table_mangle 12700 1
ip6table_security 12710 1
ip6table_raw 12683 1
iptable_nat 12875 1
nf_conntrack_ipv4 15053 7
nf_defrag_ipv4 12729 1 nf_conntrack_ipv4
nf_nat_ipv4 14115 1 iptable_nat
nf_nat 26787 3 nf_nat_ipv4,nf_nat_ipv6,nf_nat_masquerade_ipv4
nf_conntrack 133387 7 nf_nat,nf_nat_ipv4,nf_nat_ipv6,xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_ipv4,nf_conntrack_ipv6
iptable_mangle 12695 1
iptable_security 12705 1
iptable_raw 12678 1
ebtable_filter 12827 1
ebtables 35009 3 ebtable_broute,ebtable_nat,ebtable_filter
ip6table_filter 12815 1
ip6_tables 26901 5 ip6table_filter,ip6table_mangle,ip6table_security,ip6table_nat,ip6table_raw
iptable_filter 12810 1
vmw_vsock_vmci_transport 30577 2
vsock 35327 3 vmw_vsock_vmci_transport
bnep 19625 2
dm_mirror 22124 0
dm_region_hash 20813 1 dm_mirror
dm_log 18411 2 dm_region_hash,dm_mirror
dm_mod 123303 2 dm_log,dm_mirror
snd_seq_midi 13565 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_ens1371 25194 3
iosf_mbi 13523 0
crc32_pclmul 13113 0
ghash_clmulni_intel 13259 0
aesni_intel 69884 0
lrw 13286 1 aesni_intel
gf128mul 14951 1 lrw
glue_helper 13990 1 aesni_intel
ablk_helper 13597 1 aesni_intel
snd_rawmidi 31294 2 snd_ens1371,snd_seq_midi
snd_ac97_codec 130556 1 snd_ens1371
ac97_bus 12730 1 snd_ac97_codec
snd_seq 62699 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 14356 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_pcm 106416 2 snd_ac97_codec,snd_ens1371
btusb 41436 0
btrtl 12945 1 btusb
btbcm 14040 1 btusb
btintel 15709 1 btusb
bluetooth 544565 31 bnep,btbcm,btrtl,btusb,rfcomm,btintel
cryptd 20359 3 ghash_clmulni_intel,aesni_intel,ablk_helper
snd_timer 29822 2 snd_pcm,snd_seq
snd 83383 13 snd_ac97_codec,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_ens1371,snd_seq_device
rfkill 22391 3 bluetooth
soundcore 15047 1 snd
ppdev 17671 0
vmw_balloon 18190 0
joydev 17377 0
nfit 49183 0
sg 40721 0
pcspkr 12718 0
libnvdimm 132047 1 nfit
parport_pc 28165 0
parport 42299 2 ppdev,parport_pc
i2c_piix4 22390 0
shpchp 37032 0
vmw_vmci 67013 1 vmw_vsock_vmci_transport
nfsd 342857 1
auth_rpcgss 59415 1 nfsd
nfs_acl 12837 1 nfsd
lockd 93827 1 nfsd
grace 13515 2 nfsd,lockd
sunrpc 348674 7 nfsd,auth_rpcgss,lockd,nfs_acl
ip_tables 27115 5 iptable_security,iptable_filter,iptable_mangle,iptable_nat,iptable_raw
xfs 978100 1
libcrc32c 12644 3 xfs,nf_nat,nf_conntrack
sr_mod 22416 1
sd_mod 46322 3
cdrom 42556 1 sr_mod
crc_t10dif 12714 1 sd_mod
crct10dif_generic 12647 0
ata_generic 12910 0
pata_acpi 13038 0
vmwgfx 235405 2
drm_kms_helper 159169 1 vmwgfx
syscopyarea 12529 1 drm_kms_helper
sysfillrect 12701 1 drm_kms_helper
sysimgblt 12640 1 drm_kms_helper
fb_sys_fops 12703 1 drm_kms_helper
ttm 99345 1 vmwgfx
ata_piix 35038 1
libata 238896 3 pata_acpi,ata_generic,ata_piix
drm 370825 5 ttm,drm_kms_helper,vmwgfx
crct10dif_pclmul 14289 1
crct10dif_common 12595 3 crct10dif_pclmul,crct10dif_generic,crc_t10dif
crc32c_intel 22079 1
mptspi 22542 2
e1000 137500 0
scsi_transport_spi 30732 1 mptspi
serio_raw 13413 0
mptscsih 40150 1 mptspi
mptbase 105960 2 mptspi,mptscsih
i2c_core 40756 3 drm,i2c_piix4,drm_kms_helper
[root@localhost ~]#
# # 列出所有USB设备
[root@localhost ~]# lsusb -tv
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
|__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/7p, 12M
|__ Port 1: Dev 4, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 1: Dev 4, If 1, Class=Wireless, Driver=btusb, 12M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/6p, 480M
[root@localhost ~]# # env # 查看环境变量资源
[root@localhost ~]# env
XDG_SESSION_ID=16
HOSTNAME=localhost.localdomain
SELINUX_ROLE_REQUESTED=
TERM=vt100
SHELL=/bin/bash
HISTSIZE=1000
SSH_CLIENT=192.168.1.103 59426 22
SELINUX_USE_CURRENT_RANGE=
SSH_TTY=/dev/pts/1
USER=root
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=01;36:*.au=01;36:*.flac=01;36:*.mid=01;36:*.midi=01;36:*.mka=01;36:*.mp3=01;36:*.mpc=01;36:*.ogg=01;36:*.ra=01;36:*.wav=01;36:*.axa=01;36:*.oga=01;36:*.spx=01;36:*.xspf=01;36:
MAIL=/var/spool/mail/root
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
PWD=/root
LANG=en_US.UTF-8
SELINUX_LEVEL_REQUESTED=
HISTCONTROL=ignoredups
SHLVL=1
HOME=/root
LOGNAME=root
XDG_DATA_DIRS=/root/.local/share/flatpak/exports/share/:/var/lib/flatpak/exports/share/:/usr/local/share/:/usr/share/
SSH_CONNECTION=192.168.1.103 59426 192.168.1.100 22
LESSOPEN=||/usr/bin/lesspipe.sh %s
XDG_RUNTIME_DIR=/run/user/0
_=/usr/bin/env
[root@localhost ~]#
#查看操作系统版本
[root@localhost ~]# head -n 1 /etc/issue
S
# # 查看内存使用量和交换区使用量
[root@localhost ~]# free -m
total used free shared buff/cache available
Mem: 3774 831 104 12 2839 2617
Swap: 10239 0 10239
[root@localhost ~]# # # 查看各分区使用情况
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 1014G 14G 1000G 2% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 9.0M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
tmpfs 378M 36K 378M 1% /run/user/0
/dev/sr0 8.1G 8.1G 0 100% /run/media/root/CentOS 7 x86_64
[root@localhost ~]#
# du -sh <目录名> # 查看指定目录的大小
[root@localhost ~]# du -sh
8.2G .
[root@localhost ~]#
# grep MemTotal /proc/meminfo # 查看内存总量
[root@localhost ~]# grep MemTotal /proc/meminfo
MemTotal: 3865308 kB
[root@localhost ~]#
# uptime # 查看系统运行时间、用户数、负载
[root@localhost ~]# uptime
10:55:36 up 2:49, 3 users, load average: 0.00, 0.02, 0.07
[root@localhost ~]#
# cat /proc/loadavg # 查看系统负载磁盘和分区
[root@localhost ~]# cat /proc/loadavg
0.00 0.02 0.06 2/433 43398
[root@localhost ~]#
# mount | column -t # 查看挂接的分区状态
[root@localhost ~]# mount | column -t
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=1917916k,nr_inodes=479479,mode=755)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,mode=755)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,seclabel,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_prio,net_cls)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/sda2 on / type xfs (rw,relatime,seclabel,attr2,inode64,noquota)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=24,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=14056)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel)
mqueue on /dev/mqueue type mqueue (rw,relatime,seclabel)
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)
tmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,seclabel,size=386532k,mode=700)
gvfsd-fuse on /run/user/0/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=0,group_id=0)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
/dev/sr0 on /run/media/root/CentOS 7 x86_64 type iso9660 (ro,nosuid,nodev,relatime,uid=0,gid=0,iocharset=utf8,mode=0400,dmode=0500,uhelper=udisks2)
[root@localhost ~]#
# fdisk -l # 查看所有分区
[root@localhost ~]# fdisk -l
Disk /dev/sda: 1099.5 GB, 1099511627776 bytes, 2147483648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000c868b
Device Boot Start End Blocks Id System
/dev/sda1 2048 20973567 10485760 82 Linux swap / Solaris
/dev/sda2 * 20973568 2147483647 1063255040 83 Linux
[root@localhost ~]#
# swapon -s # 查看所有交换分区
[root@localhost ~]# swapon -s
Filename Type Size Used Priority
/dev/sda1 partition 10485756 0 -1
[root@localhost ~]#
# dmesg | grep IDE # 查看启动时IDE设备检测状况网络
[root@localhost ~]# dmesg | grep IDE
[ 4.069928] pci 0000:00:07.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7]
[ 4.069933] pci 0000:00:07.1: legacy IDE quirk: reg 0x14: [io 0x03f6]
[ 4.069935] pci 0000:00:07.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177]
[ 4.069937] pci 0000:00:07.1: legacy IDE quirk: reg 0x1c: [io 0x0376]
[ 15.840403] ata2.00: ATAPI: VMware Virtual IDE CDROM Drive, 00000001, max UDMA/33
[ 15.886604] scsi 1:0:0:0: CD-ROM NECVMWar VMware IDE CDR10 1.00 PQ: 0 ANSI: 5
[ 15.995785] scsi target2:0:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 127)
[root@localhost ~]#
# iptables -L # 查看防火墙设置
[root@localhost ~]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- anywhere anywhere udp dpt:domain
ACCEPT tcp -- anywhere anywhere tcp dpt:domain
ACCEPT udp -- anywhere anywhere udp dpt:bootps
ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
INPUT_direct all -- anywhere anywhere
INPUT_ZONES_SOURCE all -- anywhere anywhere
INPUT_ZONES all -- anywhere anywhere
DROP all -- anywhere anywhere ctstate INVALID
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere 192.168.122.0/24 ctstate RELATED,ESTABLISHED
ACCEPT all -- 192.168.122.0/24 anywhere
ACCEPT all -- anywhere anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- anywhere anywhere
FORWARD_direct all -- anywhere anywhere
FORWARD_IN_ZONES_SOURCE all -- anywhere anywhere
FORWARD_IN_ZONES all -- anywhere anywhere
FORWARD_OUT_ZONES_SOURCE all -- anywhere anywhere
FORWARD_OUT_ZONES all -- anywhere anywhere
DROP all -- anywhere anywhere ctstate INVALID
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT udp -- anywhere anywhere udp dpt:bootpc
OUTPUT_direct all -- anywhere anywhere
Chain FORWARD_IN_ZONES (1 references)
target prot opt source destination
FWDI_public all -- anywhere anywhere [goto]
FWDI_public all -- anywhere anywhere [goto]
Chain FORWARD_IN_ZONES_SOURCE (1 references)
target prot opt source destination
Chain FORWARD_OUT_ZONES (1 references)
target prot opt source destination
FWDO_public all -- anywhere anywhere [goto]
FWDO_public all -- anywhere anywhere [goto]
Chain FORWARD_OUT_ZONES_SOURCE (1 references)
target prot opt source destination
Chain FORWARD_direct (1 references)
target prot opt source destination
Chain FWDI_public (2 references)
target prot opt source destination
FWDI_public_log all -- anywhere anywhere
FWDI_public_deny all -- anywhere anywhere
FWDI_public_allow all -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere
Chain FWDI_public_allow (1 references)
target prot opt source destination
Chain FWDI_public_deny (1 references)
target prot opt source destination
Chain FWDI_public_log (1 references)
target prot opt source destination
Chain FWDO_public (2 references)
target prot opt source destination
FWDO_public_log all -- anywhere anywhere
FWDO_public_deny all -- anywhere anywhere
FWDO_public_allow all -- anywhere anywhere
Chain FWDO_public_allow (1 references)
target prot opt source destination
Chain FWDO_public_deny (1 references)
target prot opt source destination
Chain FWDO_public_log (1 references)
target prot opt source destination
Chain INPUT_ZONES (1 references)
target prot opt source destination
IN_public all -- anywhere anywhere [goto]
IN_public all -- anywhere anywhere [goto]
Chain INPUT_ZONES_SOURCE (1 references)
target prot opt source destination
Chain INPUT_direct (1 references)
target prot opt source destination
Chain IN_public (2 references)
target prot opt source destination
IN_public_log all -- anywhere anywhere
IN_public_deny all -- anywhere anywhere
IN_public_allow all -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere
Chain IN_public_allow (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ctstate NEW
Chain IN_public_deny (1 references)
target prot opt source destination
Chain IN_public_log (1 references)
target prot opt source destination
Chain OUTPUT_direct (1 references)
target prot opt source destination
[root@localhost ~]#
# route -n # 查看路由表
[root@localhost ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 ens33
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
[root@localhost ~]#
# netstat -lntp # 查看所有监听端口
[root@localhost ~]# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN 1379/dnsmasq
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 989/sshd
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 992/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1250/master
tcp6 0 0 :::111 :::* LISTEN 1/systemd
tcp6 0 0 :::22 :::* LISTEN 989/sshd
tcp6 0 0 ::1:631 :::* LISTEN 992/cupsd
tcp6 0 0 ::1:25 :::* LISTEN 1250/master
[root@localhost ~]#
# 查看所有已经建立的连接
[root@localhost ~]# netstat -antp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/systemd
tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN 1379/dnsmasq
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 989/sshd
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 992/cupsd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1250/master
tcp 0 0 192.168.1.100:22 192.168.1.107:61500 ESTABLISHED 2368/sshd: root@pts
tcp6 0 0 :::111 :::* LISTEN 1/systemd
tcp6 0 0 :::22 :::* LISTEN 989/sshd
tcp6 0 0 ::1:631 :::* LISTEN 992/cupsd
tcp6 0 0 ::1:25 :::* LISTEN 1250/master
[root@localhost ~]#
# netstat -s # 查看网络统计信息进程
[root@localhost ~]# netstat -s
Ip:
182 total packets received
0 forwarded
0 incoming packets discarded
140 incoming packets delivered
160 requests sent out
Icmp:
5 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
destination unreachable: 5
6 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 6
IcmpMsg:
InType3: 5
OutType3: 6
Tcp:
0 active connections openings
1 passive connection openings
0 failed connection attempts
0 connection resets received
1 connections established
123 segments received
99 segments send out
0 segments retransmited
0 bad segments received.
0 resets sent
Udp:
7 packets received
5 packets to unknown port received.
0 packet receive errors
52 packets sent
0 receive buffer errors
0 send buffer errors
UdpLite:
TcpExt:
2 delayed acks sent
27 packet headers predicted
24 acknowledgments not containing data payload received
45 predicted acknowledgments
IPReversePathFilter: 1
TCPAutoCorking: 1
TCPOrigDataSent: 92
IpExt:
InMcastPkts: 40
OutMcastPkts: 44
InOctets: 17509
OutOctets: 28490
InMcastOctets: 5622
OutMcastOctets: 6039
InNoECTPkts: 182
[root@localhost ~]#