Telnet IP/sybase Central tool cannot connect to database

Problem Description: client Sybase Central tool cannot connect to database

service-side operating system: rhel5.8_x64, install sybase-ase15.7, port number 4112 ip:192.168.1.220 hostname:rhel5.8-ase.com Client for Windows system.

After the installation is complete, use the isql tool on the server to log in to the database normally. The firewall is down.

[Email protected] ~]$ Isql-usa-pzxcvbnm-srhel5
1>

Netstat view 4112 ports in listening state:

The client Sybase Central tool cannot connect to the database using IP and host names.

CMD window test: Telnet 192.168.1.220 4112 does not pass

Telnet rhel5.8-ase.com 4112 does not pass

Ping host name and IP are connected

Workaround:

Modify the Hosts file, delete or comment on this line: 127.0.0.1 rhel5. 8-ase.com rhel5. 8-ase

[[email protected] ~]$ vi/etc/hosts# do not remove the following line, or various programs# that require network func Tionality would fail. 192.168. 1.220   Rhel5. 8-ase.com rhel5. 8-ase
#127.0.0.1 rhel5.  8-ase.com rhel5. 8-ase  

After removing the IP port from the client telnet is OK.

Sybase Central uses IP to connect to the database properly.

Telnet IP/sybase Central tool cannot connect to database