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Operating Systems Linux Red Hat What is the best tools for performance data gathering and analysis? Post 302557466 by solaris_user on Wednesday 21st of September 2011 09:16:00 AM
Old 09-21-2011
Use top, vmstat command for the start point, for network you can use wireshark or tcpdump command, or even if you want to examine network security nmap command.
 

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rcinet(8)						      System Manager's Manual							 rcinet(8)

NAME
rcinet - Restarts, starts, or stops Internet network services on the system SYNOPSIS
/usr/sbin/rcinet option OPTIONS
You must specify one of the following options with the rcinet command: Restarts the network on the system. Starts the network on the sys- tem. Stops the network on the system. You can restrict the restart, start, or stop operation to either IPv4 or IPv6 networks by specifying inet or inet6, respectively, as the second parameter. By default, the script assumes both IPv4 and IPv6. DESCRIPTION
The rcinet script allows system administrators to restart, start, or stop the Internet network services on the system while it is running in multiuser mode by using one of the options. RESTRICTIONS
Superuser privilege is required. Warn users that the system is being removed from the network. File systems that were not mounted using the /etc/fstab file or the automount command must be unmounted with the umount command. You must remount these file systems using the mount command after the network is started on your system. ERRORS
The rcinet script prints an error message to stderr if the network is not configured on the system. FILES
The network shell scripts are located in /sbin/init.d with symbolic links in /sbin/rc0.d and /sbin/rc3.d. SEE ALSO
Commands: mount(8) Network Administration rcinet(8)
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