- apg - generates several random passwords
- corkscrew - tunelling
- http://cntlm.sourceforge.net/ - NTLM/NTLM Session Response/NTLMv2 authenticating HTTP proxy
sudo update-rc.d -f postgresql remove
How to update alternatives for Linux Default Editor
sudo update-alternatives --config editor
CompizConfig Settings Manager call it as ccsm then choose:
Desktop->Ubuntu Unity Plugin
->Key to show the HUD when tapped
<DISABLED>
hostnamectl --static set-hostname oel7
systemctl restart systemd-hostnamed
Get familiar with Network Manager CLI:
nmcli -p g
nmcli connection
nmcli c show *connection-id*
nmcli device show
http://www.certdepot.net/rhel7-get-started-nmcli/
Modify /etc/sysconfig/network-scripts/ifcfg* with DOMAIN="domain.com sub.domain.com"
You've been told that working with RPMs needs system administrator privileges? You've been misled.
/etc/gdm/custom.conf
[daemon]
AutomaticLoginEnable=True
AutomaticLogin=john
/etc/profile.d/colorls.sh
/etc/DIR_COLORS
https://lists.ubuntu.com/archives/kubuntu-users/2006-June/006626.html
in /etc/yum.conf:
proxy=http://myproxy:80/
proxy_username=myuser
proxy_password=mypassword
yum group list
yum group install 'Server with GUI'
yum group install 'Development Tools'
rpm --httpproxy=user:pass@proxyhost --httpport=80 -Uvh \
http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
rpm --httpproxy=user:pass@proxyhost --httpport=80 -Uvh \
http://rpms.famillecollet.com/enterprise/remi-release-7.rpm
yum install oracle-rdbms-server-12cR1-preinstall
systemctl get-default
systemctl set-default graphical.target
systemctl list-unit-files
systemctl disable microcode.service
[root@oel7 ~]# grub2-set-default 3
[root@oel7 ~]# cat /boot/grub2/grubenv
Note that the position of a menu entry in the list is denoted by a number starting with zero; therefore, in the example above, the third entry will be loaded. This value will be overwritten by the name of the next kernel to be installed.
To force a system to always use a particular menu entry, use the menu entry name as the key to the GRUB_DEFAULT directive in the /etc/default/grub file. To list the available menu entries, run the following command as root:
awk -F\' '$1=="menuentry " {print $2}' /etc/grub2.cfg
The standard svn included in RHEL7 does not support http and https schemes. There is another svn from Wandisco prepared so the solution is to remove Redhat delivered svn, exclude it from the repository and pick that one from Wandisco. An extra repository (EPEL) is required to fully satisfy dependencies. The story is mentioned in two following articles:
GIT missess SVN support with an error of "Can't locate SVN/Core.pm in @INC". The missing
part is present in WandiscoSVN repository:
yum --enablerepo=* install subversion-perl
chattr +C on directory to disable Copy-On-Write (COW).
Later lsattr file shows if it works correctly, the 'C'
attribute means we have NOCOW.