1. 进程/网络乱乱弹
(1)查看进程间的父子关系
ps auxfww
部分输出:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
sincere+ 2933 0.0 0.9 989200 73412 tty2 Sl+ 08:55 0:09 ss-qt5
sincere+ 3129 0.0 0.0 178708 4788 tty2 Sl+ 08:56 0:00 /usr/libexec/dconf-service
sincere+ 3402 0.0 0.0 248072 7060 tty2 Sl+ 08:59 0:00 /usr/libexec/gvfsd-metadata
sincere+ 4019 0.0 0.0 21396 2924 tty2 S+ 09:22 0:00 /usr/libexec/bluetooth/obexd
sincere+ 8445 0.0 0.1 489448 9976 tty2 Sl+ 11:31 0:00 /usr/libexec/gvfsd-trash --spawner :1.6 /org/gtk/gvfs/exec_spaw/0
sincere+ 9338 0.0 0.3 644032 24964 tty2 Sl+ 12:41 0:00 /usr/libexec/gvfsd-recent --spawner :1.6 /org/gtk/gvfs/exec_spaw/1
sincere+ 13115 0.1 0.6 984712 54960 tty2 Sl+ 15:30 0:04 /usr/bin/nautilus --gapplication-service
sincere+ 13133 2.3 1.2 1683820 100904 tty2 Sl+ 15:31 1:00 /usr/bin/totem --gapplication-service
sincere+ 13173 0.2 0.6 794264 48956 tty2 Sl+ 15:33 0:05 /usr/libexec/gnome-terminal-server
sincere+ 13212 0.0 0.0 8464 1752 tty2 S+ 15:33 0:00 \_ gnome-pty-helper
sincere+ 13218 0.0 0.0 118492 4992 pts/0 Ss 15:33 0:00 \_ bash
sincere+ 14133 0.0 0.0 22104 2452 pts/0 S+ 15:37 0:00 | \_ redis-cli
sincere+ 14256 0.0 0.0 118392 4740 pts/1 Ss+ 15:44 0:00 \_ bash
sincere+ 15098 0.0 0.0 118392 4776 pts/2 Ss 15:59 0:00 \_ bash
sincere+ 15541 0.0 0.0 153568 4244 pts/2 R+ 16:15 0:00 \_ ps auxfww
sincere+ 13288 4.2 4.3 2105676 350432 tty2 SLl+ 15:33 1:43 /opt/google/chrome/chrome
sincere+ 13296 0.0 0.0 109664 792 tty2 S+ 15:33 0:00 \_ cat
sincere+ 13297 0.0 0.0 109664 748 tty2 S+ 15:33 0:00 \_ cat
sincere+ 13299 0.0 0.0 6464 840 tty2 S+ 15:33 0:00 \_ /opt/google/chrome/chrome-sandbox /opt/google/chrome/chrome --type=zygote
sincere+ 13301 0.0 0.5 519620 46904 tty2 S+ 15:33 0:00 | \_ /opt/google/chrome/chrome --type=zygote
sincere+ 13305 0.0 0.0 6464 756 tty2 S+ 15:33 0:00 | \_ /opt/google/chrome/chrome-sandbox /opt/google/chrome/nacl_helper
sincere+ 13306 0.0 0.1 138704 8404 tty2 S+ 15:33 0:00 | | \_ /opt/google/chrome/nacl_helper
sincere+ 13308 0.0 0.1 527816 13868 tty2 S+ 15:33 0:00 | \_ /opt/google/chrome/chrome --type=zygote
- VSZ(Vritual Memory Size): 指进程可以占用的内存地址空间的大小
- RSS(Resident Set Size): 指进程实际占用的内存地址空间的大小
(2)查看端口号占用
netstat -tunlp | grep 80
输出
[sincerefly@init-smile ~]$ sudo netstat -tunlp | grep 80
tcp 0 0 127.0.0.1:1080 0.0.0.0:* LISTEN 2933/ss-qt5
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 779/nginx: master p
udp 0 0 127.0.0.1:1080 0.0.0.0:* 2933/ss-qt5
(3)查看占用端口号的程序路径
lsof -p 15986
上面的PID是我们查询端口号获取到的，通过这个进程ID，我们就可以找出这个程序的位置
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
node 15986 sincerefly cwd DIR 253,2 4096 14944574 /home/sincerefly/Works/Projects/simple-blog
node 15986 sincerefly rtd DIR 253,1 4096 2 /
node 15986 sincerefly txt REG 253,1 1178736 2894545 /usr/bin/node
node 15986 sincerefly mem REG 253,1 61896 2892277 /usr/lib64/libnss_files-2.21.so
node 15986 sincerefly mem REG 253,2 69016 786983 /home/sincerefly/Works/Projects/simple-blog/node_modules/mongodb/node_modules/bson/build/Release/bson.node
node 15986 sincerefly mem REG 253,1 459584 2892335 /usr/lib64/libpcre.so.1.2.5
node 15986 sincerefly mem REG 253,1 142112 2891583 /usr/lib64/libselinux.so.1
node 15986 sincerefly mem REG 253,1 114536 2892407 /usr/lib64/libresolv-2.21.so
node 15986 sincerefly mem REG 253,1 15456 2892175 /usr/lib64/libkeyutils.so.1.5
node 15986 sincerefly mem REG 253,1 62304 2891030 /usr/lib64/libkrb5support.so.0.1
node 15986 sincerefly mem REG 253,1 206384 2891019 /usr/lib64/libk5crypto.so.3.1
node 15986 sincerefly mem REG 253,1 15664 2891858 /usr/lib64/libcom_err.so.2.1
node 15986 sincerefly mem REG 253,1 948280 2891029 /usr/lib64/libkrb5.so.3.3
node 15986 sincerefly mem REG 253,1 318736 2890911 /usr/lib64/libgssapi_krb5.so.2.2
node 15986 sincerefly mem REG 253,1 25340568 2892131 /usr/lib64/libicudata.so.54.1
node 15986 sincerefly mem REG 253,1 1634032 2892138 /usr/lib64/libicuuc.so.54.1
node 15986 sincerefly mem REG 253,1 2455880 2892132 /usr/lib64/libicui18n.so.54.1
node 15986 sincerefly mem REG 253,1 43096 2892421 /usr/lib64/librt-2.21.so
node 15986 sincerefly mem REG 253,1 19336 2891894 /usr/lib64/libdl-2.21.so
node 15986 sincerefly mem REG 253,1 2095008 2891806 /usr/lib64/libc-2.21.so
node 15986 sincerefly mem REG 253,1 140952 2892370 /usr/lib64/libpthread-2.21.so
node 15986 sincerefly mem REG 253,1 92816 2885317 /usr/lib64/libgcc_s-5.1.1-20150618.so.1
node 15986 sincerefly mem REG 253,1 1164944 2892202 /usr/lib64/libm-2.21.so
node 15986 sincerefly mem REG 253,1 1566576 2891289 /usr/lib64/libstdc++.so.6.0.21
node 15986 sincerefly mem REG 253,1 1994856 2890477 /usr/lib64/libcrypto.so.1.0.1k
node 15986 sincerefly mem REG 253,1 455568 2890729 /usr/lib64/libssl.so.1.0.1k
node 15986 sincerefly mem REG 253,1 5652064 2894536 /usr/lib64/libv8.so.3.14.5
node 15986 sincerefly mem REG 253,1 116616 2894544 /usr/lib64/libuv.so.0.10
node 15986 sincerefly mem REG 253,1 74160 2891818 /usr/lib64/libcares.so.2.1.0
node 15986 sincerefly mem REG 253,1 23344 2894541 /usr/lib64/libhttp_parser.so.2.0
node 15986 sincerefly mem REG 253,1 89992 2892662 /usr/lib64/libz.so.1.2.8
node 15986 sincerefly mem REG 253,1 158840 2891643 /usr/lib64/ld-2.21.so
node 15986 sincerefly 0u CHR 136,3 0t0 6 /dev/pts/3
node 15986 sincerefly 1u CHR 136,3 0t0 6 /dev/pts/3
node 15986 sincerefly 2u CHR 136,3 0t0 6 /dev/pts/3
node 15986 sincerefly 3r FIFO 0,9 0t0 1921501 pipe
node 15986 sincerefly 4w FIFO 0,9 0t0 1921501 pipe
node 15986 sincerefly 5u a_inode 0,10 0 9632 [eventpoll]
node 15986 sincerefly 6r FIFO 0,9 0t0 1921502 pipe
node 15986 sincerefly 7w FIFO 0,9 0t0 1921502 pipe
node 15986 sincerefly 8u a_inode 0,10 0 9632 [eventfd]
node 15986 sincerefly 9r DIR 253,1 4096 2 /
node 15986 sincerefly 10w REG 253,2 71193 14944577 /home/sincerefly/Works/Projects/simple-blog/access.log
node 15986 sincerefly 11w REG 253,2 0 14944586 /home/sincerefly/Works/Projects/simple-blog/error.log
node 15986 sincerefly 12u IPv4 1919513 0t0 TCP *:terabase (LISTEN)
node 15986 sincerefly 13u IPv4 1919515 0t0 TCP localhost.localdomain:59946->localhost.localdomain:27017 (ESTABLISHED)
node 15986 sincerefly 14u IPv4 1919516 0t0 TCP localhost.localdomain:59947->localhost.localdomain:27017 (ESTABLISHED)
node 15986 sincerefly 15u IPv4 1919517 0t0 TCP localhost.localdomain:59948->localhost.localdomain:27017 (ESTABLISHED)
node 15986 sincerefly 16u IPv4 1919518 0t0 TCP localhost.localdomain:59949->localhost.localdomain:27017 (ESTABLISHED)
node 15986 sincerefly 17u IPv4 1919519 0t0 TCP localhost.localdomain:59950->localhost.localdomain:27017 (ESTABLISHED)
还有另一种方法，当获取PID后使用ll查询
ll /proc/15986/
dr-xr-xr-x 2 sincerefly sincerefly 0 8月 20 16:24 attr
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 autogroup
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 auxv
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 cgroup
--w------- 1 sincerefly sincerefly 0 8月 20 16:30 clear_refs
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:24 cmdline
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 comm
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 coredump_filter
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 cpuset
lrwxrwxrwx 1 sincerefly sincerefly 0 8月 20 16:26 cwd -> /home/sincerefly/Works/Projects/simple-blog
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 environ
lrwxrwxrwx 1 sincerefly sincerefly 0 8月 20 16:24 exe -> /usr/bin/node
dr-x------ 2 sincerefly sincerefly 0 8月 20 16:24 fd
dr-x------ 2 sincerefly sincerefly 0 8月 20 16:26 fdinfo
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 gid_map
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 io
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 limits
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 loginuid
dr-x------ 2 sincerefly sincerefly 0 8月 20 16:30 map_files
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:26 maps
-rw------- 1 sincerefly sincerefly 0 8月 20 16:30 mem
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 mountinfo
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 mounts
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 mountstats
dr-xr-xr-x 7 sincerefly sincerefly 0 8月 20 16:30 net
dr-x--x--x 2 sincerefly sincerefly 0 8月 20 16:30 ns
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 numa_maps
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 oom_adj
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 oom_score
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 oom_score_adj
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 pagemap
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 personality
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 projid_map
lrwxrwxrwx 1 sincerefly sincerefly 0 8月 20 16:26 root -> /
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 sched
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 sessionid
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 setgroups
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 smaps
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 stack
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:26 stat
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 statm
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 status
-r-------- 1 sincerefly sincerefly 0 8月 20 16:30 syscall
dr-xr-xr-x 8 sincerefly sincerefly 0 8月 20 16:30 task
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 timers
-rw-r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 uid_map
-r--r--r-- 1 sincerefly sincerefly 0 8月 20 16:30 wchan