JLab Offsite Login Portal IP Addresses Change Sept. 16, 2008
On Tuesday, Sept. 16, the hosts that are used for offsite connection to JLab (login1.jlab.org and login2.jlab.org) will have their IP addresses changed. It may take several hours for these new IP addresses to propagate to all offsite users. Additionally, some offsite users may be using computers that have cached the old IP addresses. These changes will be made during the scheduled maintenance period on Tuesday, Sept. 16, 5-10 p.m. Therefore, if after 10 p.m. EDT on Sept. 16 you cannot connect to login1.jlab.org or login2.jlab.org, please reboot the system you are trying to connect from. If you continue to encounter problems connecting after a system reboot, please contact the Computer Center HelpDesk at x7155 or email@example.com.
These IP address changes may also affect the ssh program that is being used at remote sites. Some versions of ssh store the IP addresses of the machines that have been connected to. Once JLab login servers change their IP addresses, users may get warnings to that effect from their ssh software. Each offsite user will need to accept the changes and/or change the configuration of their ssh client to remove references to the old IP addresses.
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