rhcsa_labs

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systemd.target=emergency.target rd.break

sudo systemctl set-default multi-user.target

dd if=/dev/zero of=/dev/null &

find /etc -type f -size -1000c -exec cp {} /tmp/files/pictures ;

date -d "+90 days" +%F

[root@server1 ~]# cat /etc/sudoers.d/consultants %consultants ALL=(ALL) ALL

getfacl /data/students setfacl -m d:g:profs:rx /data/students/

tuned-adm profile balanced

sudo systemctl edit httpd.service [httpd] Restart=always RestartSec=60s

man journald.conf mkdir /var/log/journal

[root@server1 ~]# vim /etc/rsyslog.d/auth-errors.conf authpriv.alert /var/log/auth-errors

logger -p authpriv.alert "TEST MESSAGE"

cat /etc/logrotate.d/samba vi /etc/logrotate.d/error /var/log/error { montly rotate 12 create }

sysctl -a | grep forward vi /etc/sysctl.conf - net.ipv4.ip_forward = 1

getenforce vi /etc/sysconfig/selinux semanage fcontext -l - типы контекста semanage port -l - разрешённые порты restorecon -vR /var/www/html/ - восстановить контекст semanage fcontext -a -t httpd_sys_content_t '/webserver(/.*)?' - назначить контекст less /var/log/messages - поиском найти /sealert getsebool -a | grep home setsebool -P httpd_enable_homedirs on grep 'type=AVC' /var/log/audit/audit.log

firewall-cmd --list-all firewall-cmd --add-service http firewall-cmd --add-service http --permanent firewall-cmd --add-port=8080/tcp firewall-cmd --add-port=8080/tcp --permanent

rpm -qa - установленные пакеты rpm -qd - документация rpm -qc - конфиги

/etc/yum.repos.d/

[rht-updates] name=rht updates baseurl=http://content.example.com/rhel8.2/x86_64/rhcsa-practice/errata enabled=1 gpgcheck=0

yum module list sudo yum module install python36:3.6/common

sudo yum module remove python36 sudo yum module reset python36

parted /dev/sdb mklabel gpt mkpart backup xfs 2048s 2GiB

yum install -y stratisd stratis-cli yum install -y vdo kmod-kvdo systemctl enable --now stratisd

x-systemd.requires=stratisd.service x-systemd.requires=vdo.service

vdo create --name labvdo --device /dev/sdd --vdoLogicalSize 50G mkfs.xfs -K /dev/mapper/labvdo

stratis filesystem create labpool labfs

cat /etc/crontab

showmount -e server2

yum install -y autofs systemctl enable --now autofs

sudo vim /etc/auto.master.d/demo.autofs /shares /etc/auto.demo

sudo vim /etc/auto.demo work -rw,sync serverb:/shares/work

```
     -rw,sync    serverb:/shares/&
```

nmcli connection add con-name lab type ethernet ipv4.method manual ipv4.address 192.168.10.110/24 ipv4.gateway 192.168.10.9 ipv4.dns 192.168.10.9 autoconnect yes nmcli connection up lab

2.6 KiB Raw Blame History

2.6 KiB

Raw Blame History