Excluding one port from a tcpdump output is easy. Use the below syntax to make sure the port is excluded as both a source and destination in the tcpdump output. bash tcpdump -n not dst port 22 and not src port 22 You might issue the above command if you are connected to the server…
You can use yum to gain more information about a package by using the below command.
- yum info <em>package_name</em>
Using the “info” option will provide details about the package including what version is installed, what versions are available, the yum repo it is available from, the size of the installed package, the size of the new package, the version, the release, a summary about the package, and a detailed description of the package. An example using postgresql-server is below.
Installing nmap on CentOS Linux is very easy using the yum utility. Just issue the below command from the CLI and nmap will be installed.
- [root@server ~]# yum install nmap
Using nmap is easy. The below performs the default scan on an IP address.
- [root@server ~]# nmap IPADDRESS
Currently I am working on a layout of an office using Microsoft Visio and needed to change the size of units on the page soI could fit more feet per block of the drawing. Follow the steps below to change the ratio of units on the page.
- Open Visio: Select start, then Program Files, and select Microsoft Office Visio.
- Open Visio Options: Once your project is open select Tools from the top menu and then select Options from the menu drop down.
This is just a brief howto about installing and configuring NTPD (Network Time Protocol Daemon) on a Linux server which in this case is specifically NTPD. First we will install ntpd, then update the current time on the server, configure ntpd to restart on server boot, and then start ntpd.
- Install NTPD: Run the below command to install ntpd via yum.
- [root@server ~]# yum install ntp