Web Server(Apache),

Web Server(Apache), Proxy Server(Squid) & Server Logs By Sanjay Kumar Malik Lecturer University School of IT GGS Indraprastha University Kashmere Gate, Delhi -110403

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Webserver & it’s types ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Apache Web Server ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Requirement for Hosting WebServer(WebSite). ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How Webserver works ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.yahoo.com ISP Domain Proxy server www.yahoo.com Note:-For Home users, request will go directly to ISP since home users don’t use proxy servers .

Web Server Security ,[object Object],[object Object],[object Object],[object Object],[object Object]

Proxy Server,Advantages & Types(Squid & Others) ,[object Object],[object Object],[object Object],[object Object],[object Object],Clients Proxy Server WAN Link LAN Cables

Networking Devices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Switches 1. A Network device. Provides connectivity to all machines. Basically a centralize device with intelligence to forward data. Generally , superior than hubs. It maintains a table by which it takes decision to forward data. It has speed of upto 1000 mbps. It comes with 8port,16port,24port,48port,72port and so on) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Linux Introduction & features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A few Linux commands Commands Description touch create new file mkdir create new dir. vi to edit file. cd change dir. cp copy file/dir. mv move file/dir rm remove file. rmdir remove dir. date view date. cal view calendar. bc view calculator. Init -0 shutdown the machine.

Server Logs ,[object Object],[object Object],[object Object],[object Object],[object Object], Squid logs 1209105932.207 3 172.16.78.42 TCP_IMS_HIT/304 303 GET http://www.ncbi.nlm.nih.gov/blast/js/utils.js - NONE/- application/x-javascript 1209105931.658 7 172.16.1.148 TCP_MEM_HIT/200 1212 GET http://www.relbio.com/images/careers_hover.jpg - NONE/- image/jpeg1208855587.146 5561 172.16.16.12 TCP_MISS/302 553 GET http://mail.yahoo.com / - DIRECT/202.86.7.110 text/html1208855687.590 712 172.16.1.1 TCP_MISS/302 572 GET http://orkut.com/ - DIRECT/72.14.209.85 text/html Apache Logs(mail.ipu.edu) 202.159.218.122 - - [22/Apr/2008:09:47:21 +0530] "GET /webmail/src/style.php?themeid=default_theme&templateid=default HTTP/1.1" 200 5627 " http://mail.ipu.edu/webmail/src/login.php " "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14" 59.90.72.161 - - [22/Apr/2008:09:12:14 +0530] "GET /webmail/src/style.php?themeid=default_theme&templateid=default HTTP/1.1" 200 5627 " http://mail.ipu.edu/webmail/src/login.php " "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Embedded Web Browser from: http://bsalsa.com/)" 202.159.218.122 - - [22/Apr/2008:09:47:21 +0530] "GET /webmail/src/login.php HTTP/1.1" 200 2363 "http://mail.ipu.edu /" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14"

Network Security ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Securing Networks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Anti-X ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A few NetworkingTools ,[object Object],[object Object],[object Object],[object Object],OPManager - OPManager is a network monitoring software that can automatically discover our network, group your devices into intuitive maps, monitor devices in real-time and alert instantaneously on failure. http://manageengine.adventnet.com/products/opmanager/ IPAudit IPAudit can be used to monitor network activity for a variety of purposes. It has proved useful for monitoring intrusion detection, bandwith consumption and denial of service attacks. . For more informations visit:http://ipaudit.sourceforge.net/ Ethereal (Packet sniffer ) http://www.ethereal.com WireShark (packet sniffer) http://www.wireshark.org NMAP (port scanner) http://nmap.org MRTG ( Multi-route traffic generator) http://www.mrtg.com Spamassassin (Mail Filter) http://www.spamassassin.apache.org VNC (Remote desktop) http://www.realvnc.com

Malicious Software Is a software that is intentionally included or inserted in a system for a harmful purpose. Virus :-Computer viruses are small software programs that are designed to spread from one computer to another and to interfere with computer operation. Effects of Virus :- 1.A virus might corrupt or delete data on your computer. 2.Due to virus drives are not opened. 3.Slows down the speed of the system. 4.Taskmanager is Disabled.

Threats other than virus ,[object Object],[object Object],[object Object]

Antivirus ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How to use antivirus ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Symantec Antivirus Corporate Edition ,[object Object],[object Object],[object Object],[object Object],[object Object]

Management of Symantec Antivirus in Indraprastha University ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GGSIPU Website Updating through VPN ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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