Excellent network tools for linux

nload

nload can monitor the inbound and outbound traffic of each network adapter.

How to install nload?

yum install nload

iftop

iftop can monitor incoming and outcoming traffic of ip which connected to localhost.

How to install iftop?

yum install iftop

fping

fping can detect the reachable to remote host, and it also can detect reachable to every hosts

in whole netwok

Download url: http://www.fping.org/dist/

compile and install

./configure –prefix=/usr/local/fping/

make && make isntall

axel
Axel is A light download Accelerator for Linux, which makes the download faster by creating multiple connections, so I often use this command to open and download large files, which is much faster than WGET, and supports breakpoint downloads by default.
The method to install in RHEL/CentOS:
yum install axel -y
Usage: axel [options] url1 [url2] [url…]
–max-speed=x -s x Specify maximum speed (bytes per second)
–num-connections=x -n x Specify maximum number of connections
–output=f -o f Specify local output file
–search[=x] -S [x] Search for mirrors and download from x servers
–header=x -H x Add header string
–user-agent=x -U x Set user agent
–no-proxy -N Just don’t use any proxy server
–quiet -q Leave stdout alone
–verbose -v More status information
–alternate -a Alternate progress indicator
–help -h This information
–version -V Version information
Visit http://axel.alioth.debian.org/ to report bugs
Example:
axel -n 10 -o /tmp http:/../path/../package.tar.gz