This is not a generic question: telnet/rlogin from the same machine to itself fails, but ftp/ping work on HP-UX11i.I have hosts.equiv, .rhosts files set. In /etc/nsswitch.conf for the hosts field i have "files nis" as the lookup. nslookup looks up FILES and succeeds. /etc/hosts: 127.0.0.1 localho

Sep 12, 2012 · Unknown host means the hostname cannot be made into a valid IP. Does your domain still exist and does the domain hoster have any issues on their end? Are you using an IP or a domain? May 04, 2019 · If host is not specified, it defaults to the local host. Note that version 2 of the rpcbind protocol was previously known as the portmapper protocol.-t: Make an RPC call to procedure 0 of prognum on the specified host using TCP, and report whether a response was received. May 07, 2008 · PING - Unknown host 127.0.0.1, Unknown host localhost - Solaris 10 Hello, I have a problem - I created a chrooted jail for one user. When I'm logged in as root, everything work fine, but when I'm logged in as a chrooted user - I have many problems: 1. Windows version is Microsoft Windows XP Professional Version 2002 Service Pack 2 This is the first time trying to connect to sql developer. Unknown Host: An unknown host is an error message that generates when a destination computer or host server name cannot be resolved. The message indicates that the Constructs a new UnknownHostException with the specified detail message Thrown to indicate that the IP address of a host could not be determined. Since: JDK1.0 To connect user scott with password tiger to a database with SID (system identifier) orcl through port 1521 of host myhost, using the Thin driver, you would write : Connection conn = DriverManager.getConnection ("jdbc:oracle:thin:@myhost:1521:orcl", "scott", "tiger"); OCI Driver for client-side use with an Oracle client installation.

Windows version is Microsoft Windows XP Professional Version 2002 Service Pack 2 This is the first time trying to connect to sql developer.

Question: I was trying to connect to Oracle through SQL developer, and I see this error. io exception: the network adaptor could not establish the connection Vendor ping: unknown host google.com This means that resolving of the domain names to IP via DNS (Domain Name System) is not working. To fix this, simply type the following command: Aug 07, 2010 · Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Re: Unknown Host Specified OrionNet Feb 8, 2009 10:52 PM ( in response to 683900 ) Hello, I think you need to get database software installed either on your local machine or access where database is already installed and configured.

I have faced the exact same thing twice. 1. When I just downloaded SQL Developer 2. When I used it after a long time (having made various changes to my computer) For the first part, I was too juvenile to know that I'd have to download an Oracle X

Jul 23, 2010 · Invalid Oracle URL specified. 1. Verify that the JDBC URL specified meets the specifications described in this document. The Network Adapter could not establish the connection. 1. Verify that the database Listener is running. 2. Verify that port number provided in the JDBC URL is correct. Unknown host specified. 1. The Hadoop host resolver ensures hostnames are terminated with a trailing dot prior to lookup to avoid the security issue described in RFC 1535. Unknown Host Exception in HA HDFS. This exception surfaces when setting up HA HDFS.