freeware network monitoring tools

Network monitoring is the most complex of all Linux subsystems, there are too many factors in the inside, such as: delay, blocking, conflict, packet loss, and worse, the router connected to the Linux host, switch, wireless signal will affect the overall network and it is difficult to determine because the Linux The problem of

Network monitoring is the most complex of all Linux subsystems, there are too many factors in the inside, such as: delay, blocking, conflict, packet loss, and worse, the router connected to the Linux host, switch, wireless signal will affect the overall network and it is difficult to determine because the Linux The problem of

Command iftop to check bandwidth usage, netstat to view interface statistics reports, and other tools BANDWIDTHD, speedometer, nethogs, Darkstat, Jnettop, Ifstat, Iptraf, Nload and ntop and so on. But these tools are statistical card access data, if you want to find a like 360 security guard on Windows, can be in real-time statistics per program network bandwidth

Iptraf is a ncurses based IP LAN monitoring tool that generates a variety of network statistics, including TCP information, UDP statistics, ICMP and OSPF information, Ethernet load information, node statistics, IP checksum errors, and other information. Its ncurses user interface also saves users from the Dream nightmare of command line options. Function An IP traffic monitor for displaying IP traffic in

box is gray, And the default user is guest.Workaround: This is a security policy setting issue (Security options, network access: Local account sharing and security mode, administrative tools, local security policy, and so on). By default, XP is accessed by the "Guest only" way, if you access it, of course, fixed for guest access, and the Guest account does not have the right to monitor, so to change the a

Programming | network Talking about socket programming, we may think of QQ and IE, yes. There are many network tools such as Peer-to-peer, NetMeeting and other applications implemented in the application layer, but also with the socket to achieve. The socket is a network programming interface that is implemented at the

Telecom Network management need module library, he can know I wait every day to face Odf/ddf/mdf/shelf/card/port these telecom business model pain point. See this video The important thing about using HIGHTOPO is that HT provides a HTML5-based visual designer without the use of professional 3D design tools such as 3ds Max and Maya, and direct HT 3D Designer can model 3D on a page, While the dynamic da

to its characteristics and the relationship between the time stamp, to determine the network data flow is no problem, which layer of the problem, how serious. The expert system is not only limited to decoding, but also helps the maintenance personnel to analyze the network fault, the expert system will give the suggestion and the solution. The third stage is to develop

In a class Linux system, you can use top to view information such as system resources, processes, memory consumption, and so on. View network status You can use Netstat, nmap and other tools. To see real-time network traffic, monitor TCP/IP connectivity, and so on, you can use Iftop.First, Iftop What is it? The iftop is a real-time traffic

Although network monitoring seems omnipotent, it also has a fatal weakness, that is only as a second wave of attacks, hackers must have invaded a host to put network monitoring tools. And only in the network segment will have broa

of the invasion process, at the end of each case to put forward a precautionary approach to such attacks and remedial measures, the focus is to tell the reader how to conduct system and network forensics, find and repair various loopholes, so as to effectively defend.There are 14 chapters in the book, which can be divided into three articles.The First Log Analysis Foundation (1th to 3rd chapter), is the foundation of the book, for IT operations perso

it discards packets that should not be received. The sniffer tool enables the host's network device to receive all incoming packets, thus achieving the network monitoring effect. Linux as a network server, especially as routers and gateways, data acquisition and analysis is essential. So today we're going to look at

Talking about socket programming, we may think of QQ and IE, yes. There are many network tools such as Peer-to-peer, NetMeeting and other applications implemented in the application layer, but also with the socket to achieve. The socket is a network programming interface that is implemented at the network application l

When talking about socket programming, you may think of QQ and IE. That's right. Many other network tools, such as P2P and NetMeeting, are implemented at the application layer using socket. Socket is a network programming interface that is implemented on the network application layer. Windows Socket includes a set of s

Linux host network traffic monitoring ifstatIfstat is used in this monitoring program. Installation Method reference:Http://man.linuxde.net/ifstat1. DownloadHttp://gael.roualland.free.fr/ifstat/ (Official Website) wget http://gael.roualland.free.fr/ifstat/ifstat-1.1.tar.gzFrom: http://man.linuxde.net/ifstatYou can also download the file in a browser and use secur

the most time-consuming pages (more than 60 seconds) and the number of corresponding page occurrencesCat Access.log |awk ' ($NF > $7~/\.php/) {print $7} ' |sort-n|uniq-c|sort-nr|head-1007. List files that have been transmitted for longer than 30 secondsCat Access.log |awk ' ($NF >) {print $7} ' |sort-n|uniq-c|sort-nr|head-208. Statistics website Traffic (G)Cat Access.log |awk ' {sum+=$10} END {print sum/1024/1024/1024} '9. Statistics 404 of the Connectionawk ' ($9 ~/404/) ' Access.log | awk '

When talking about socket programming, you may think of QQ and IE. That's right. Many other network tools, such as P2P and NetMeeting, are implemented at the application layer using socket. Socket is a network programming interface that is implemented on the network application layer. Windows Socket includes a set of s

Cacti is a set of graphical analysis tools for network traffic monitoring based on PHP,MYSQL,SNMP and RRDtool development.Mysqlreport is the most commonly used tool for MySQL performance monitoring, and it helps to understand MySQL running status and configuration tuning.Mysqlsla is a MySQL log analysis tool launched b

Nethogs, the latest network monitoring tool in CentOS Nethogs is a network traffic monitoring tool on a terminal. It displays the bandwidth usage of each process, so that the network usage can be obtained more intuitively. It supports IPv4 and IPv6 protocols, local NICs, and

Article title: Configure SmokePing network monitoring. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. RHEL-5.3 ========================================================== ================================ [Actual needs] As a website company, we usually require the IT depa