ip:
i=`(nmcli c s eth0 | grep IP4.A |awk {'print $2'})`
nmcli c m eth0 ipv4.me m ipv4.a $i ipv4.g 10.10.70.254 ipv4.dns 10.10.70.101 && nmcli c u eth0
nmcli c a type Ether ifname eth1 con-name eth1 &&nmcli c u eth1
i=`( nmcli c s eth1 | grep IP4.A|awk {'print $2'})`
nmcli c m eth1 ipv4.me m ipv4.a $i &&nmcli c u eth1
nmcli c a type Ether ifname eth2 con-name eth2 && nmcli c u eth2
nmcli c m eth1 ipv4.me m ipv4.a $i && nmcli c u eth2
yum:
mount //192.168.100.22/iso /mnt -o username=root,password=Qwer1234
mount -t cifs //ip/share /yourname
mkdir -p /media/CentOS/
mount /mnt/CentOS-8.3.2011-x86_64-dvd1.iso /media/CentOS
yum config-manager --disable "*"
yum config-manager --enable "me*"
yum install -y net-tools
firewalld:
firewall-cmd --add-service=named
firewall-cmd --add-port=53/tcp
iptables:
snat
iptables -t nat -A POSTROUTING -s LANip/24 -j snat --to WANip
dnat
iptables -t nat -A PREROUTING -d WANip/24 -p tcp -m tcp -j DNAT --dport port --to-destination LANip:
port
system:
echo "server 10.10.70.101">>/etc/chrony.conf
echo "- - -">/sys/class/scsi_host/host2/scan
systemctl restart chronyd
systemctl enable chronyd
chronyc sources -v
ssh-copy-id 10.10.70.101
systemctl stop firewalld
systemctl start firewalld
yum install -y dhcp*
find / -name yourname
systemctl list-util-files |grep enable
dns:
forwarders {ip;}
blackhole {denyip;}
if you want forward must:
dnssec-enable yes;
dnssec-validation yes;
rpm:
rpm -ivh 1.rpm --nodeps
ca:
openssl req -new -nodes -keyout server.key -out server.csr
openssl ca -keyfile /etc/pki/CA/cakey.pem -cert /etc/pki/CA/cacert.pem -in server.csr -out server.cr
t -days 3650
openssl req -new -nodes -keyout server.key -out server.csr
openssl x509 -req -in server.csr -signkey server.key -out server.crt
cat server.key server.crt>a.pem
openssl genrsa -out server.key
openssl req -new -x509 -key server.key -out server.cer
openssl pkcs12 -export -in server.cer -inkey server.key -out tomcat.pfx
keytool -genkeypair -keyalg RSA
openssl req -new -x509 -nodes -keyout server.key -out server.crt
openssl req -new -x509 -nodes -keyout server.key -out server.csr
iscsi:
pvcreate /dev/sdb{1,2,3} /dev/sdc{1,2,3}
vgcreate vg1 /dev/sdb1
lvcreate -l 50%VG -n lv1 vg1
lvcreate -L 2.5G -n lv1 vg1
ssm:
ssm list
ssm create -s size -n name --fstype type -p PullName /dev/sdb /mountMulu
ssm resize -s +size /mulu
ssm add -p PullName /dev/sdb
httpd:
mkdir -p /www/netdj/
echo "hallo the world">/www/netdj/index.html
systemctl restart httpd
deny ip:
<virtualhost *:80>
oder allow,deny
allow from all
</virtualhost>
must https:
rewriteengine on
rewirtecond %{https} !=on
rewriterule ^(.*) https://%{SERVER_NAME}/$1 [R,L]
web user:
htpasswd -c -b /yourmulu/password username password
htpasswd -b /yourmulu/password username2 password
config:
authtype "basic"
authusername "your name"
authuserfile /yourmulu/password
virtual mulu:
alias /virtualname "/yourmulu"
mysql:
yum install -y mariadb*
systemctl start mariadb
create database userdb;
create table userinfo(username varchar(20),password char(20));
insert into userinfo(username,password)values ('user1','123');
desc userinfo;
select * from userinfo;
show variables like "%general_log%"
set global general_log=on;
set global general_log_file="logfile";
squid:
dns_nameservers Your DNS IP
cache_mem 512000
cache_dir ufs /cache
cache_log /your log File
visible_hostname SquidName
cache_mgr admin@qq.com
squid user auth:
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/password
auth_param basic realm Your auth name
auth param basic children 5
acl user1 proxy_auth REQURED
http_access allow user1
java:
tar -xzvf /1.tar.gz /mulu
java_home=/mulu
path=$path:$java_home/bin
export path java_home
java -version