Networking Blog

Posts Tagged ‘network monitoring’

Wayzata, Minnesota – June 2, 2010 – Dotcom-Monitor, a leading provider of network monitoring and analysis solutions, today announced the immediate availability of the most cost-effective, advanced web application monitoring tool on the market – UserView Monitoring™.

UserView Monitoring™ is a proactive, regular browser-based web application monitoring tool, providing real-time monitoring, alerts, and reports on a user’s experience of web application performance and component connectivity. This regular browser-based monitoring tool for web applications/online transaction deployments continues Dotcom-Monitor’s focus on providing cost-effective, external monitoring solutions to administrators for online retailers, interactive agencies, and other industries focused on providing the highest quality of user experience.

Dotcom-Monitor browser-based UserView Monitoring™ solution utilizes a proprietary EveryStep™ Macro Recorder technology. EveryStep™ is a no-hassle macro recorder application, which automatically records “every step” in a user’s experience of a web application. UserView Monitoring™ is used to monitor the user’s experience of online shopping carts, login processes, etc… essentially every step in a user’s experience of a website or web application.

“As more organizations rely on interactive systems, it is important for user experience monitoring to proactively mimic the external end-user’s perspective, rather than only relying on passive internal statistical systems,” said Vadim Mazo, founder and chief technical officer of Dotcom-Monitor. “Moreover, much of the marketplace for “user experience” monitoring has been asking for an advanced, but cost-effective alternative. Vendors currently offering browser-based monitoring have a high price point, complicated evaluation/sales requirements, pre-payment pricing, and demand long-term contracts. UserView Monitoring™ offers a simplified, on-demand, and cost-effective approach.”

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StaffCop 3.0 software by AtomPark Software now supports Windows Vista. StaffCop 3.0 is multi-purpose solution to prevent private leak. Since market slaes StaffCop has recommended as powerfull solution for local networks.

The main tasks of StaffCop:

1. providing the high security level by collecting information about users’ activity: analysing web-traffic, corporative emails, opened applications, usb devices, monitor screenshots;
2. generating report for analysis

StaffCop 3.0 includes many changes in new version:

1. Supports Windows Vista, Windows Server 2003/2008;
2. Monitoring of all corporative emails;
3. New improved user’s interface;
4. Remote closing of applications;

The programme is very easy to install and configure. It has understandable interface and can be applied on huge variety of networks.

The Transmission Control Protocol (TCP) provides fairly reliable transfers and it attempts to deliver the packets in order at their destination. This makes it very suitable for any application which would like to transfer a sequence of bytes (e.g., a file transfer, an e-mail or the Web) to its destination in a somewhat reliable and sequential fashion. TCP is the most ubiquitous protocol on today’s Internet and is used by many of the Internet applications that we use on an everyday basis. The Web is built on TCP/IP as HTTP uses TCP to manage the individual conversations between Web clients and Web servers by dividing the HTTP messages into smaller pieces and delivering them in order at the destination.

TCP employs the use of a number of events and controls to implement its behaviour and it is therefore far more complicated an implementation than UDP. Briefly, TCP therefore includes the following features:

1. Connection Oriented: When a TCP connection is created, the underlying protocol implemented a handshake mechanism in order to establish a TCP connection. TCP connections therefore have state and have a lifetime until they are disconnected. The procedure is broadly as follows. A client sends a SYN packet to the desired location, the TCP server, which is a minimal 40-byte packet which contains the sender’s and destination addresses. When the server receives this packet it will respond with an ACK packet, which is an acknowledgement of the server’s willingness to accept the connection.

2. Multiple TCP Connections: The connection request at the server is implemented using an accept() method. A TCP server can block an accept call or use an asynchronous event to indicate that the server should accept the connection. Once accepted, the server typically spawns a new thread and creates a socket to manage this new connection. A server therefore generally acts as a listener and multi-plexor for managing multiple TCP connections and brokers these requests to actual TCP sockets that create a one-to-one TCP relationship with the client.

3. Data Control Mechanisms: attempt to deliver data in a reliable in-order fashion and therefore employ the use of ACKs to acknowledge delivery of packets as and when they arrive. The TCP receiver also implements a buffer that is used to slot the packets in the correct order before data is delivered to the application. Therefore, even though data might arrive in the incorrect order in the first instance, the packets are re-ordered before being passed to the application.

4. TCP Events: Most C++ TCP implementations allow an application to attach itself as a listener to a socket.4 Since sockets can be senders and/or receivers of information, clients and servers receive events based on their role in the TCP connection. A client TCP socket (or the socket that is brokered to deal with the incoming connection at the server) therefore can receive Connect, Send, Receive and Disconnected events. Briefly, a client is notifed of a Connect event, when it receives an ACK back from the server indicating that the server has accepted the connection request. A Send event is passed to the client when the data has been sent to the server (either using edge- or level-trigger mechanisms) and after a connect event has been received. A Receive event is received by the client when data has arrived and is ready for collection (for asynchronous notifcation) and a Disconnected event means that the connection has been terminated. A server in the TCP implementation generally acts as a broker to create new sockets for dealing with new connections and therefore it is typically only interested in receiving Accept and Receive events. When a client has requested a connection (by sending a SYN packet), the server passes an Accept event to the listener for server connections. The application can use this event in order to call the accept() socket method in order to accept this connection (however, in Java this behaviour is implemented through a blocking call to the ServerSocket accept method). Thereafter, a server socket can be notifed with a Receive event when data has arrived and is ready for collection.

Dear readers, I’m happy to introduce, the best on my opinion, service to monitor your websites or entire network. It is network monitoring tools from Dotcom Monitor. I’m sure that almost of us someday realize that monitoring service can be really very important and helpful way to be online or back online in time. Inspite of hosters’ declaration that they provide 99% uptime it is not adsolute true. Approximately 4 day in a year server is down and your business can lose your potential clients.

So why i do recommend network monitoring service from Dotcom Monitor? You know, i have tested Zenoss open source network monitoring software to monitor my VPS before. Yes, that software is superb one but you have to have an experience to set it up, some administrative skills should be very useful. But when i came across Dotcom Monitor i found a very powerful, flexible and stable service to monitor my network without experienced network knowledge.

And they offer:

1. Video Streaming Monitoring
2. E-Mail Servers (SMTP/POP3)
3. Domain name servers (DNS)
4. File Transfer Protocol (FTP) Servers
5. Telnet (Port Availability)
6. Ping (ICMP) — Routers/Firewalls
7. UDP
8. Web Service (SOAP/HTTP)
9. Media Streaming (Video and Audio)
10. DNS Blacklist Monitoring

This is not complete list of services you will get with Dotcom Monitor. Please refer to their home page to read more http://www.dotcom-monitor.com

Dotcom-Monitor provides a lot of ways of notification, including: Email, Wireless Email, Regular Phone, SMS, Numeric Pager.

Being a member you will get different types of report such as real-time online overall summary report, real-time online detailed report,  real-time drilldown report, uptime/downtime charts and so on.

Dotcom-Monitor has a huge list of datacenters to monitor your network. Some of them are in: Netherlands, USA, Canada, China, Germany, Australia.

30-day trial subscription is available as well as free (but limited). The paid packages start from $79.99 per month.

Hope you will get the powerful tool to monitor you websites and networks.

Visit Dotcom Monitor now http://www.dotcom-monitor.com

Alchemy Eye Pro – very useful software for network monitoring. It controls network server and performance continuously. In cases of faults it can notify network administrator by SMS or email. It also helps to protect and to improve network performance. It includes ICMP network monitoring, NT Event log monitoring, HTTP(S)/FTP URL internet monitoring, NT Service State server monitoring, Oracle server monitoring, MS SQL server monitoring, SQL monitoring, external monitoring, file existence monitoring, NetBios Lan monitoring, SMTP/POP3 mail monitoring, IPX/SPX file monitoring, VBScript monitoring, Telnet Server monitoring, NNTP Server monitoring, IMAP mail server monitoring, BDE server monitoring, LDAP server monitoring, TCP/IP monitoring.