Script to ask Network configuration via kickstart

%pre
#!/bin/bash
echo -n "Enter FQDN Hostname: " > /dev/tty1
read HOSTN
echo -n "Enter IP Address:" > /dev/tty1
read IP
echo -n "Enter the Netmask:" > /dev/tty1
read MASK
echo -n "Enter Gateway:" > /dev/tty1
read GW
echo -n "Enter Nameserver:" > /dev/tty1
read DNS
echo "network --device eth0 --bootproto=static --ip=${IP} --netmask=${MASK} --gateway=${GW} --nameserver=${DNS} --hostname=${HOSTN}" > /tmp/network.txt

%post --noroot
#!/bin/bash
# bring in hostname collected from %pre, then source it
######
cp -Rvf /etc/sysconfig/network /mnt/sysimage/etc/sysconfig/network
cp -Rvf /etc/sysconfig/resolv.conf /mnt/sysimage/etc/resolv.conf
# Set-up eth0 with hostname
cp /etc/sysconfig/network-scripts/ifcfg-eth0  /mnt/sysimage/etc/sysconfig/network-scripts/ifcfg-eth0



# force hostname change
/mnt/sysimage/bin/hostname $HOSTNAME
rhn-profile-sync

Comments

Post a Comment

Popular posts from this blog

How to clean all the foreman task and locked task

1.- First make su to postgres user su -s /bin/bash - postgres  2.-Execute psql psql  3.- connect to the foreman database \c foreman;  4.- Delete all the foreman task and foreman task locks delete from foreman_tasks_tasks;  delete from foreman_tasks_locks;  5.- Quit from postgres and exit \q  exit  6. Restart all the services for s in {qpidd,pulp_celerybeat,pulp_ resource_manager,pulp_workers, httpd}; do sudo service $s restart; done  Update in todays foreman you can clean the task using the following command: foreman-rake foreman_tasks:cleanup
Read more

CentOS 7 Server Hardening Guide

CentOS 7 Server Hardening Guide 1. System Settings – Disk Partitioning and Post installation 1.1 Disk Encryption with Kickstart The easiest way to encrypt a partition is during Kickstart installation. This can be achieved by adding the –encrypted and –passphrase= options to the definition of a physical LVM volume. Our Kickstart template is provided below. Note that the template requires a 32GB disk. #version=CentOS7.5 # System authorisation information auth --enableshadow --passalgo=sha512 # Use CDROM installation media cdrom ignoredisk --only-use=sda # Keyboard layouts keyboard --vckeymap=gb --xlayouts='gb' # System language lang en_GB.UTF-8 # SELinux selinux --enforcing # Network information network --bootproto=dhcp --device=eth0 --onboot=on --activate network --hostname=ks-c7.example.com # Plaintext root password: PleaseChangeMe rootpw --iscrypted $6$nS0mBJyS$q/QgCof5unWrT9W3qngTISueSDhDHVNntDqd8sOcgmHp2lq4f/niUbjCmoEzaf3EWQ2x3z/k0eIZa
Read more

How to restrict users to send only mail to the local domain in Zimbra

How to restrict users to send only mail to the local domain in Zimbra 1. Open file /opt/zimbra/conf/zmconfigd/smtpd_recipient_restrictions.cf and add this line below reject_non_fqdn_recipient. This is example on my system permit_sasl_authenticated check_sender_access lmdb:/opt/zimbra/postfix/conf/restricted_senders permit_mynetworks 2. Open file /opt/zimbra/conf/zmconfigd.cf and add those lines before RESTART mta. This is example on my system POSTCONF smtpd_restriction_classes local_only POSTCONF local_only FILE postfix_check_recipient_access.cf RESTART mta 3. Create a file /opt/zimbra/conf/postfix_check_recipient_access.cf and add the following line.  check_recipient_access lmdb:/opt/zimbra/postfix/conf/local_domains, reject 4. Create a file "/opt/zimbra/postfix/conf/restricted_senders" and list all the users, whom you want to restrict. Follow this syntax: user@yourdomain.com local_only 5. Create a file "/opt/zimbra/postfix/con
Read more