运维常见面试题

find / -name "*.log" -ctime +3 -exec rm -f {} \;

for i in `find /test -type f -size +100k`;do cd /test && mv $i /tmp;done

mount 192.168.1.1:/backup /mnt
👨🦱‎👒📬🤮✍



cd /mnt



/usr/local/mysql/bin/mysqldump -hlocalhost -uroot test >test.sql

🧑‍🌾‍🧥✒😰🖕

tar czf test.sql.tar.gz test.sql



rm -f test.sql

iptables -P INPUT ACCEPT



iptables -P OUTPUT ACCEPT



iptables -P FORWARD ACCEPT

✊🚂🥚♀🦬‏


iptables -F



iptables -X



✊🌡🍊♻🦉‌
iptables -A INPUT -i eth0 -p tcp –dport 80 -j ACCEPT



iptables -P INPUT DROP

awk   ‘{a[$1]++}END{for (j in a) print a[j],j}’ /home/logs/nginx/default/access.log|sort -nr|head -10

（1）MaxKeepAliveRequests    100

🧒‎👗⚔🙄💅

（2）Options FollowSymLinks



               Order Deny Allow



               Deny from all

🤟🗼™🐮‎


        Allow from 192.168.1.1