Zusammenfassung der Ressource
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
Anmerkungen:
- 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
Anmerkungen:
- Listing NetworkManager polkit permissions
- Network
- systemctl restart network
- systemctl status network
- /etc/sysconfig/network-scripts
Anmerkungen:
- Arquivos chave de configuração de rede
- /etc/sysconfig/network-scripts/ifcfg-lo
- ifcfg-enp0s3
Anmerkungen:
- 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
Anmerkungen:
- /etc/ntp.conf
Anmerkungen:
- ntpq -p
Anmerkungen:
- LDAP
Anmerkungen:
- 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