 |
Dependency package: cifs-utils
Mounting an SMB/CIFS share on Linux indirectly calls the mount.cifs utility, that is included within the cifs-utils package.
mount.cifs accepts various options passed a... |
|
|
Problem: By default Centos 7 assigns a clumsy device name to the Ethernet interface
Resolution: Assign a different device name to the interface
Update: June 2018
CentOS 7.5 build 1804. A further fi... |
|
|
Download Centos 7 netinstall iso
Install Centos selecting minimal packages
Add useful packages
> yum -y install nano net-utils
Add epel repo
> yum install epel-release
Update Centos
|
|
|
Default console font too small
The default console font used by CentOS may be uncomfortably small when viewed on a modern HD screen.
To increase the font size of sytemd based Linux distributions use t... |
|
|
Install Webmin on Centos 7
yum -y install perl perl-Net-SSLeay openssl perl-IO-Tty perl-Encode-Detect
yum -y install nano
wget http://www.webmin.com/jcameron-key.asc
rpm --import jcameron-key.asc... |
|
|
Problem: complete install of webmin suggested perl modules
Install perl-modules and package dependencies command: yum install gcc -y ... |
|
|
The Garmin Connecct IQ Simulator shipped with Version 3.1 of the Connect IQ SDK may fail to launch on a vanilla install of CentOS 7. The simulator has been compiled with linked dependence to sha... |
|
|
To list files with numeric file permissions use the following command
stat -c "%a %n"
|
|
|
find <path_to_search> -name "filespec" -exec rm -rf {} \; e.g remove all files and folders names temp from home folder find ~/ -name "temp" -exec rm -rf {} \; remove only files prefixed ._ fi... |
|
|
Basic steps for installing FastCGI support on Apache2 under Centos 5 yum install httpd-devel wget http://www.fastcgi.com/dist/mod_fastcgi-current.tar.gz tar xzf mod_fastcgi-current.tar.gz cd mod_fast... |
|
|
Change ownership of a file chown user:group filespec Change ownership of directory and contents chown -R user:group filespec Change ownership of a symlink chown -h user:group symlink |
|
|
rsync is a command line file synchronisation application, which is available for
Natively for almost all Linux distributions
As a statically linked binary for ESXi server
Most versions of Windows by w... |
|
|
The default Linux video mode is 640x480, 8 bit, which produces a text console of 80 x 25 characters The text console dimensions may be increased by setting the video mode used by the kernel during boo... |
|
|
Problem: VMWare virtual interfaces can not be captured directly using WiresharkSolution: The vmnet-sniff command is capable or writing libpcap files which can be read by Wireshark. To capture in realt... |
|
|
A Ram disk is can be useful for many purposes.
In particular when creating a root fs during the building of a boot image.
To create a 4MB Ext2 Ram disk
1. Check that /dev/ram0 exists, or cre... |
|
|
When using parted to create disk partions you may recieve the following warning message
Warning: The resulting partition is not properly aligned for best performance
Th parameters required to align ... |
|
|
Bind9 / named logging skeleton template.
Various channel definitions which can be C&Pd to named.conf at the global level. On redhat the log files should be created before starting bind wit... |
|
|
General
FirewallD is the zone based netfilter configuration tool shipped with CentOS / RHEL 7. Various standard service definitions are distributed with FirewallD, in the lib/firewalld/services... |
|
|
Postfix error on Debian 8 Jessie
Jun 16 13:45:44 mail01 postfix/postscreen[6086]: close database /var/lib/postfix/postscreen_cache.db: No such file or directory (possible Berkeley DB bug)
&n... |
|
|
Problem: report the number of errors produced by individual clients
This may be useful for tracking down attacks.
cat error_log | awk '{print $11}' | awk -F: '{print $1}' | sort | uniq -c
&n... |
|
|
Avahi mdns is similar to Apple Bonjour and allows hosts to be referenced using the hostname on the the local network (LAN), without adding a DNS record.
#Install the avahi mdns, start the service and ... |
|
|
Let's encrypt automatic renewal fails at first expiry date after modoboa install
Environment: CentOS 7.9.2009, Modoboa V1.17
Issue webroot not set in /etc/letsencrypt/renewal/domain.name.conf
Add the ... |
|
|
Creat a bootable USB stick from an iso file using dd.
'of' points to the device and not the partition
dd bs=4M if=./parth/to/image.iso of=/dev/sdFlash status=progress oflag=sync
|
|
|
SMBNetFS is a user land smbclient that is used to mount Windows network shares (cifs/smb) to a Linux file system on demand. Unlike the mount command smbnetfs doew not require root privilege
An smbne... |
|
|
Debian cheat sheet
To install a new desktop environment use
sudo tasksel
To select desktop environment
sudo update-alternatives --config x-session-manager
Add network browsing to desktop fileman... |
|
|
SSH Public & Private key generation
RSA and DSA keys are deprecated and may not be supported on all Mac and Linux versions.
bbThe recommendation at time of writing is to use ecdsa 521[sic] for a b... |
|
|
DDRescue
DDRescue is an alternative to the DD partition imaging tool.
DDRescue is optimised for data recovery.
DD rescue may target individual
Use the DDRescueview GUI tool to examine ddrescue map f... |
|
|
CentOS 7 is no longer supported and the official update mirrorlist has been retired.
To bring CentOS to the latest released version and allow 3rd party repos to continue to be used the CentOS-Base rep... |
|
Loading knowledgebase suggestions...
