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2.2.4. 實​​​施​​​伺​​​服​​​器​​​容​​​錯​​​移​​​轉​​​

從​​​ up2date-4.2.38 開​​​始​​​,Red Hat Update Agent 能​​​被​​​配​​​置​​​來​​​從​​​一​​​系​​​列​​​的​​​ RHN 伺​​​服​​​器​​​搜​​​尋​​​更​​​新​​​。​​​這​​​對​​​於​​​在​​​您​​​的​​​主​​​要​​​ RHN Proxy Server 或​​​ RHN Satellite Server 可​​​能​​​離​​​線​​​並​​​需​​​進​​​行​​​持​​​久​​​性​​​固​​​定​​​更​​​新​​​的​​​情​​​況​​​下​​​相​​​當​​​有​​​幫​​​助​​​。​​​
若​​​要​​​使​​​用​​​此​​​功​​​能​​​,請​​​先​​​確​​​認​​​您​​​是​​​否​​​執​​​行​​​正​​​確​​​的​​​ up2date 版​​​本​​​。​​​接​​​著​​​請​​​(以​​​ root 身​​​份​​​)手​​​動​​​式​​​地​​​將​​​次​​​要​​​伺​​​服​​​器​​​新​​​增​​​至​​​ /etc/sysconfig/rhn/up2date 配​​​置​​​檔​​​案​​​中​​​的​​​ serverURL 與​​​ noSSLServerURL 設​​​定​​​中​​​。​​​請​​​在​​​緊​​​接​​​著​​​主​​​要​​​伺​​​服​​​器​​​的​​​位​​​置​​​為​​​ Proxy 或​​​衛​​​星​​​伺​​​服​​​器​​​新​​​增​​​完​​​整​​​的​​​網​​​域​​​名​​​稱​​​(FQDN),並​​​以​​​分​​​號​​​(;)區​​​隔​​​開​​​來​​​。​​​就​​​像​​​是​​​:
serverURL[comment]=Remote server URL
serverURL=https://your_primary.your_domain.com/XMLRPC; 
https://your_secondary.your_domain.com/XMLRPC;

noSSLServerURL[comment]=Remote server URL without SSL
noSSLServerURL=http://your_primary.your_domain.com/XMLRPC; 
https://your_secondary.your_domain.com/XMLRPC;
這​​​裡​​​提​​​供​​​了​​​嘗​​​試​​​連​​​結​​​至​​​伺​​​服​​​器​​​的​​​順​​​序​​​。​​​您​​​能​​​夠​​​依​​​照​​​您​​​的​​​喜​​​好​​​加​​​入​​​任​​​何​​​數​​​量​​​的​​​伺​​​服​​​器​​​。​​​您​​​也​​​能​​​將​​​中​​​央​​​ RHN 伺​​​服​​​器​​​列​​​出​​​。​​​這​​​是​​​合​​​理​​​的​​​,不​​​過​​​卻​​​是​​​只​​​有​​​在​​​客​​​戶​​​端​​​系​​​統​​​能​​​夠​​​連​​​結​​​至​​​網​​​路​​​的​​​情​​​況​​​下​​​。​​​