Red Hat Linux Password reset ( ethical hacking Password Breakage )

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Initial setup:

password break:
restart system
> press esc key
    linux
 > press e
> fi ( line not enter)
> linux16  /boot/vmliuz  > go to end of the line and enter below the command
     rd.break console=tty1
>ctrl+X
switch_root:# mount -o remount,rw /sysroot
switch_root:# ch root /sysroot
sh-4.2# passwd
newpasswd:
retypepasswd:
sh-4.2# exit
switch_root:#exit


[root@server6 ~]# nmtui
 > Edit a connection
 >  system eth0
 > Edit
>Profile name:system eth0
> ipv4 configuration -->show(click)--Enter
        ( IP address,gateway,dns,search domain give in EXAM u can enter below)
        Addressed:172.25.20.11
        Gateway  :172.25.254.254
        DNS server:172.25.254.254
        search Domain: example.com
>  ok
> quit

[root@server6 ~]# nmtui
   > Activate connection
   > system eth0 ----> Deactivate(show)--Enter--> Activate ---> Enter
   > quit

now check IP address:

[root@server6 ~]# ip a
[root@server6 ~]# ping 172.25.254.254

[root@server6 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0
BOOTPROTO=static
ONBOOT=yes

[root@server6 ~]#hostnamectl set-hostname server6.example.com
                   or
[root@server6 ~]#vim /etc/hostname
                  server6.example.com



[root@server6 ~]# systemctl mask iptables
[root@server6 ~]# systemctl mask ip6tables
[root@server6 ~]# systemctl mask ebtables
[root@server6 ~]# hostnamectl set-hostname server6.example.com
[root@server6 ~]# hostname

[root@server6 yum.repos.d]# vim admin.repo

[admin]
name=adminrepo
baseurl=http://content.example.com/rhel7.0/x86_64/dvd
gpgcheck=0
enabled=1
[root@server6 yum.repos.d]# yum clean all
[root@server6 yum.repos.d]# yum clean dbcache
[root@server6 yum.repos.d]# yum repolist


[root@server6 ~]# init 6

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