firewall

[Kyriazopoulos G. Ioannis]

ÐáéäéÜ ãåéá ÷áñÜ óå üëïõò.

Ôï ôåëåõôáßï êáéñü ìå
áðáó÷ïëåß ôï èÝìá áóöÜëåéáò
ôïõ äéêôýïõ óôç íÝá
ìïõ äïõëåßá. Öáíôáóôåßôå
Ýíá Üíáñ÷á óôçìÝíï äßêôõï
ìå ðÜíù áðü 100 Pc,
20 ÔåñìáôéêÜ (Telnet), 3 Nt Server, 2 GpUx ( Unix
ôïõ 1980), 1 Sun
enterprise Server 2500 êáé Ýíá Sun Ultra 2. Ïé
åöáñìïãÝò ðïõ Ýôñå÷áí
ìÝ÷ñé ôþñá ïé õðÜëëçëïé
Þôáí êëåéóôÝò. Ôþñá üìùò, óôç
æùÞ ôïõò ìðÞêå ôï
internet êáé üëïé Ý÷ïõí ðñüóâáóç
óå áõôü, üðùò êáé ôï ßäéï óå
áõôïýò

êáé áõôü åßíáé ðïõ ìå
áíçóõ÷åß
 Ïé åöáñìïãÝò ðïõ
ôñÝ÷ïõí åßíáé ðïëý
êñßóéìåò, (ìéóèïäïóßåò, databases,
ê.ô.ë.). èá Þèåëá ëïéðüí üëïé
ïé
Server íá ìçí åßíáé ïñáôïß áðü ôï
õðüëïéðï internet äßêôõï.
Ðáëáéüôåñá
üôáí ìå åß÷å áðáó÷ïëÞóåé ôï
ßäéï ðñüâëçìá ìå Ýíá Macintosh Server
ôïõ
åãêáôÝóôçóá Ýíá êáôÜëëçëï
ðñüãñáììá DoorStop www.opendoc.com êáé ï
õðïëïãéóôÞò ãßíïíôáí
ïñáôüò Þ ü÷é êáèþò êáé ïé
ðüñôåò ôïõ Tcp ðïõ Þèåëá
åãþ. Ð.÷ 195.÷÷÷.÷÷÷:25

Ôþñá üìùò ïé õðïëïãéóôÝò
åßíáé ðåñéóóüôåñïé êáé
áñêåôÜ áóýìâáôïé ìåôáîý
ôïõò. Èá Þèåëá ëïéðüí ìéá
ïëïêëçñùìÝíç ëýóç. ¸÷åé
êáíåßò áíôéìåôùðßóåé
êÜôé ðáñüìïéï; ÐñÝðåé ð.÷ íá
âÜëù Ýíá linux ìå 2 ethernet interfaces Þ
íá øÜîù ðåñéóóüôåñï ôï router (Cisco
2500), üëï ôï äßêôõï Ý÷åé
ðñüóâáóç
ìÝóï ôïõ äñïìïëïãçôÞ óôï
internet, frame relay 256K.

Åðßóçò ãéá dial up ÷ñÞóôåò
õðÜñ÷ïõí 2 modems ðÜíù óå Ýíá digiboard,
ðùò
èá ìðïñïýóá íá ôï êÜíù íá
åßíáé call back, ãéá íá ìçí
áðïôåëÝóåé ìéá
êåñêüðïñôá óôï äßêôõï;

ÄåêôÝò üëåò ïé ðñïôÜóåéò,
êáèþò êáé ç ðåñáéôÝñù
ðáñáðïìðÞ óå ó÷åôéêÜ
sites ìå ôï èÝìá.

Åõ÷áñéóôþ.

 

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