Linux 运维必备的13款实用工具，赶紧收藏！

[root@localhost ~]#yum -y install libpcap-devel ncurses-devel
[root@localhost ~]# tar zxvf nethogs-0.8.0.tar.gz
[root@localhost ~]# cd nethogs
[root@localhost nethogs]# make && make install
[root@localhost nethogs]# nethogs eth0

[root@localhost current]# tar xvf iozone3_420.tar
[root@localhost ~]# cd iozone3_420/src/current/
[root@localhost current]# make linux
[root@localhost current]# ./iozone -a -n 512m -g 16g -i 0 -i 1 -i 5 -f /mnt/iozone -Rb ./iozone.xls

[root@localhost ~]# yum -y install iotop

[root@localhost ~]# yum -y install iptraf

[root@localhost ~]# tar zxvf iftop-0.17.tar.gz
[root@localhost ~]# cd iftop-0.17 [root@localhost iftop-0.17]# ./configure
[root@localhost iftop-0.17]# make && make install
[root@localhost iftop-0.17]# iftop [root@localhost iftop-0.17]# iftop -i eth0 #指定监控网卡接口

[root@localhost ~]# yum -y install htop

[root@localhost ~]# chmod +x nmon_x86_64_rhel6
[root@localhost ~]# mv nmon_x86_64_rhel6 /usr/sbin/nmon
[root@localhost ~]# nmon

[root@localhost ~]# yum -y install multitail
[root@localhost ~]# multitail -e "fail" /var/log/secure #筛选关键字进行监控
[root@localhost ~]# multitail -l "ping baidu.com" #监控后面的命令-l将要执行的命令
[root@localhost ~]# multitail -i /var/log/messages -i /var/log/secure #-i指定一个文件名

[root@localhost ~]# cd fail2ban-0.8.11
[root@localhost fail2ban-0.8.11]# python setup.py install
[root@localhost fail2ban-0.8.11]# cd files/
[root@localhost files]# cp ./redhat-initd /etc/init.d/fail2ban
[root@localhost files]# service fail2ban start
[root@localhost files]# chkconfig --add fail2ban
[root@localhost files]# chkconfig fail2ban on

[root@localhost ~]# grep -v "^#" /etc/fail2ban/jail.conf | grep -v "^$" [DEFAULT]
ignoreip = 127.0.0.1/8#忽略本机IP
bantime = 600   #符合规则后封锁时间
findtime = 600  #在多长时间内符合规则执行封锁如600秒达到3次则执行
maxretry = 3    #最大尝试次数
backend = auto #日志修改检测日志gamin、polling和auto这三种
usedns = warn [ssh-iptables]
enabled = true#默认是禁用
false filter = sshd action = iptables[name=SSH, port=ssh, protocol=tcp] # sendmail-whois[name=SSH,dest=收件人邮箱, sender=发件人邮箱, sendername="Fail2Ban"] logpath = /var/log/sshd.log #响应的错误日志一般在/var/log/secure maxretry = 5 #尝试错误次数覆盖全局中的maxretry

[root@localhost ~]# touch /var/log/sshd.log
[root@localhost ~]# service fail2ban restart
[root@localhost ~]# fail2ban-client status #查看监控已经开启 Status |- Number of jail: 1 `- Jail list: ssh-iptables
[root@localhost ~]# iptables -L #iptables过滤表有fail2ban一条规则 fail2ban-SSH tcp -- anywhere anywhere tcp dpt:ssh

[root@localhost ~]# tar zxvf agedu-r9723.tar.gz
[root@localhost ~]# cd agedu-r9723
[root@localhost ~]# ./configure
[root@localhost ~]# make && make install
[root@localhost ~]# agedu -s / #-s扫描
[root@localhost ~]# agedu -w --address 192.168.0.10:80 #-w输入一个网页链接
[root@localhost ~]# agedu -w --address 192.168.0.108080 --auth none #--auth关闭认证如果不加端口号会生成一个随机的用浏览器访问

[root@localhost ~]# tar jxvf nmap-6.40.tar.bz2
[root@localhost nmap-6.40]# ./configure
[root@localhost nmap-6.40]# make && make install
[root@localhost ~]# nmap 192.168.0.10 #获取基本信息
[root@localhost ~]# nmap -O 192.168.0.10 #获取系统版本信息
[root@localhost ~]# nmap -A 192.168.0.10 #获取系统综合信息
[root@localhost ~]# nmap 192.168.0.0/24 #获取一个网段工作设备基本信息

[root@localhost ~]# tar zxvf httperf-0.9.0.tar.gz
[root@localhost ~]# cd httperf-0.9.0
[root@localhost httperf-0.9.0]# ./configure
[root@localhost httperf-0.9.0]# make && make install
[root@localhost ~]# httperf --hog --server=192.168.0.202 --uri=/index.html --num-conns=10000 --wsess=10,10,0.1

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