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20150607
Network interfaces - RHCSA
Description
Mind Map on Network interfaces - RHCSA, created by Luiz Eduardo on 12/11/2019.
Mind Map by
Luiz Eduardo
, updated more than 1 year ago
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Created by
Luiz Eduardo
almost 5 years ago
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Resource summary
Network interfaces - RHCSA
nmcli
nmcli dev status
nmcli dev show
nmcli con show
nmcli con add type Ethernet ifname eth0 con-name eth1 ip4 192.168.15.6/24 \ gw4 192.168.15.1
nmcli con reload
nmcli con up eth0
nmcli con down eth0
nmcli device wifi list
nmcli con add con-name my-con-em1 ifname em1 type ethernet \ ip4 192.168.100.100/24 gw4 192.168.100.1 ip4 1.2.3.4 ip6 abbe::cafe
nmcli con mod my-con-em1 ipv4.dns "8.8.8.8 8.8.4.4"
nmcli -g ip4.address connection show my-con-eth0
Annotations:
Convenient field values retrieval for scripting
nmcli general permissions
nmcli con modify enp0s3 ipv4.address 192.168.15.11
man nmcli-examples
ip
ip addr
ip addr add 192.168.15.7/24 broadcast 192.168.0.255 dev eth1
ifdown eth1
ifup eth1
nmcli general permissions
Annotations:
Listing NetworkManager polkit permissions
Network
systemctl restart network
systemctl status network
/etc/sysconfig/network-scripts
Annotations:
Arquivos chave de configuração de rede
/etc/sysconfig/network-scripts/ifcfg-lo
ifcfg-enp0s3
Annotations:
ifcfg-enp0s3 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no DEFROUTE=yes IPV4_FAILURE_FATAL=no IPADDR=192.168.15.50 GATEWAY=192.168.15.1 DNS1=8.8.8.8 DNS2=8.4.4.4 IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no IPV6_ADDR_GEN_MODE=stable-privacy NAME=enp0s3 UUID=c9c33a6b-3581-4db8-923c-525d6b6348a2 DEVICE=enp0s3 ONBOOT=yes
ping -c3 192.168.15.7
ntp
yum install ntp system-config-date
Annotations:
instalar ntp
/etc/ntp.conf
Annotations:
arquivo de configuração
ntpq -p
Annotations:
lista servidores ntp
LDAP
Annotations:
https://www.certdepot.net/rhel7-configure-system-use-existing-ldap-directory-service-user-group-information/
Cliente
yum install openldap openldap-clients nss-pam-ldap sssd authconfig
#authconfig --enableldap --enableldapauth --ldapserver=ldap://server1.rhcsa.local --enablesssd --ldapbasedn="dc=rhcsa,dc=local" --update
Servidor
yum install ipa-server bind-dyndb-ldap ipa-server-dns -y
firewall-cmd --permanent --add-services={ldap,ldaps,kerberos,kpasswd,dns,ntp,http,https}
kinit admin
ipa user-add luizep
SELinux
Management Commands
Context management
chcon
matchpathcon
restorecon
semanage
Mode management
geenforce
sestatus
setenforce
Policy Management
seinfo
sesearch
Boolean management
getsebool
setsebool
Troubleshooting
sealert
Graphical management
system-config-selinux
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