java - Why would my samba connection fail after an upgrade to windows 2012? -

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i have jsp running on tomcat 6.0.26 (windows server 2008 r2 sp1) has samba (jcifs-1.3.17.jar) connection list files found on remote server.

this worked without problems until ad controller updated windows 2012 (fully patched).

now, can't list files on samba share anymore. 

smbfile sffile = new smbfile("smb://myserver.com/share/", "subfolder", new ntlmpasswordauthentication("mydom", session.getattribute("userid").tostring(), session.getattribute("usercode").tostring())); smbfile[] asfdirectorylist = sffile.listfiles("webversion" + session.getattribute("plcode").tostring().substring(0,3) + "*.xls");

the second line returns following exception:

    org.apache.jasper.jasperexception: jcifs.smb.smbexception: network name cannot found.     org.apache.jasper.servlet.jspservletwrapper.handlejspexception(jspservletwrapper.java:491)     org.apache.jasper.servlet.jspservletwrapper.service(jspservletwrapper.java:407)     org.apache.jasper.servlet.jspservlet.servicejspfile(jspservlet.java:313)     org.apache.jasper.servlet.jspservlet.service(jspservlet.java:260)     javax.servlet.http.httpservlet.service(httpservlet.java:717)   root cause       jcifs.smb.smbexception: network name cannot found.     jcifs.smb.smbtransport.checkstatus(smbtransport.java:563)     jcifs.smb.smbtransport.send(smbtransport.java:663)     jcifs.smb.smbsession.send(smbsession.java:238)     jcifs.smb.smbtree.treeconnect(smbtree.java:176)     jcifs.smb.smbfile.doconnect(smbfile.java:911)     jcifs.smb.smbfile.connect(smbfile.java:954)     jcifs.smb.smbfile.connect0(smbfile.java:880)     jcifs.smb.smbfile.resolvedfs(smbfile.java:669)     jcifs.smb.smbfile.send(smbfile.java:773)     jcifs.smb.smbfile.dofindfirstnext(smbfile.java:1986)     jcifs.smb.smbfile.doenum(smbfile.java:1738)     jcifs.smb.smbfile.listfiles(smbfile.java:1715)     jcifs.smb.smbfile.listfiles(smbfile.java:1681)     org.apache.jsp.financials.frfinancialsfilelisting_jsp._jspservice(frfinancialsfilelisting_jsp.java:220)     org.apache.jasper.runtime.httpjspbase.service(httpjspbase.java:70)     javax.servlet.http.httpservlet.service(httpservlet.java:717)     org.apache.jasper.servlet.jspservletwrapper.service(jspservletwrapper.java:377)     org.apache.jasper.servlet.jspservlet.servicejspfile(jspservlet.java:313)     org.apache.jasper.servlet.jspservlet.service(jspservlet.java:260)     javax.servlet.http.httpservlet.service(httpservlet.java:717)

does know why happen , how fix it?

[edit] mystery: updating ad controller windows 2012 should not have effect on webserver accessing share on fileserver (both of running windows 2008 r2 sp1). cannot understand that.

with windows server 2012 r2 smb 1.0 has been disabled default. therefore need activate smb 1.0 again in windows server 2012 r2.

  1. open add roles , features wizard of windows , check if smb 1.0/cifs file shareing support activated: enter image description here
  2. enable smb 1.0 support opening registry editor. go hkey_local_machine\system\currentcontrolset\services\lanmanserver , change value of dependonservice samss srv2 samss srv enter image description here
  3. restart windows

you can verify if support activated checking properties of system service server (lanmanserver) in tab dependencies smb 1.xxx activated: enter image description here

source: http://woshub.com/smb-1-0-support-in-windows-server-2012-r2/#!prettyphoto


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