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CDP

Sep 1, 2011 · 3 min read · ccna 2 gns3 configure basic cisco cdp commands info

Cisco Discovery Protocol - bun pentru obtinerea informatiilor de la alte routere sau swtich-uri direct conectate. - se trimit mesaje periodice (60s) - default pornit - contin informatii de genul: - tipul de device - interfetele cu care au legaturi - versiuni ale IOS - modelul device-ului Poate fi folosit ca un tool pe…

Configurare topologie simpla GNS3 partea a 2-a

Aug 31, 2011 · 6 min read · wireshark routes ccna 2 gns3 routing protocol configure basic protocols cisco part 2 commands

Continuarea configurarilor din topologia anterioara Obiective: Salvarea configuratilor (Topologie, Routere, PC-uri) Configurarea interfetei seriale de pe R2 Configurarea interfetei ethernet de pe R2 Altele Captura traficului prin Wireshark Salvarea configuratiilor Preambul: Routere/Switch-uri #copy running-confi…

Configurare topologie simpla GNS3

Aug 30, 2011 · 6 min read · routes ccna 2 linux routing protocol router hardware configure basic cisco commands

Topologie CCNA 2 3 routere 2 switch-uri simple 3 PC-uri Configurare adrese IP pentru host-uri sudo suhostname [nume]ifconfig eth0ifconfig eth0 <IP> netmask <NM> uproute add default gw <GW> eth0 Configurarea consolei si a liniilor virtuale VTY R1(config)#line console 0R1(config-line)#password ciscoR1(…

Apache2

Jul 13, 2011 · 1 min read · linux

In httpd.conf (/etc/httpd/conf/httpd.conf) este bine ca apache sa nu porneasca prea multe servere sau sa aibe prea multe servere care stau degeaba.StartServers 1 MinSpareServers 1 MaxSpareServers 5 ServerLimit 50 MaxClients 50 MaxRequestsPerChild 5000

Network Security

Jul 10, 2011 · 6 min read · ccna 4 security SSH basic cisco commands info

Why is security important ? If the security of the network is compromised there could be seroious consequences such as: loss of privacy theft of information legal liabity As time went on, and attackers' methods and tools improved, attackers no longer required the same level of sophisticated knowledge. Common terms for…

Frame Relay

Jul 4, 2011 · 2 min read · ccna 4 protocols info

Definition Frame relay este un protocol de comunicare de inalta viteza pentru retele WAN. Beneficii: Latime de banda mai mare la un cost mai scazut Surplus de latime de banda pentru o perioada limitata (burst) Mai putin overhead Viteze intre 1,544 Mbps si 44,376 Mbps Functioneaza atat la layer fizic cat si la data lin…

HDLC, PPP

Jun 27, 2011 · 9 min read · protocols ccna 4

Leased Line: HDLC, PPP Comutare circuite: HDLC, PPPComutare pachete X.25, Frame Relay, ATM HDLC High Level Data Link Control Standardizat ISO 13239 Poate encapsula decat trafic IPv4 cHDLC Poate multiplexa mai multe protocale de Layer 3 Structura Frame cHDLC Default pe toate routere-le CISCO (c-if)#encapsulation hdlc(c…

WLAN

Apr 8, 2011 · 10 min read · ccna 3 wlan

PAN LAN MAN WAN Standards Bluetooth802.15.3 802.11 802.11802.16802.20 GSM, CDMA, Satellite Speed < 1 Mbps 11 to 54 Mbps 10-100+ Mbps 10 Kbps-2 Mbps Range Short Medium Medium-Long Long Applications Peer-to-PeerDevice-to-Device EnterpriseNetworks Last Mile Access Mobile DataDevices Comparing a WLAN to L…