{"id":242,"date":"2018-03-13T09:47:21","date_gmt":"2018-03-13T01:47:21","guid":{"rendered":"http:\/\/www.max-shu.com\/blog\/?p=242"},"modified":"2018-03-13T09:47:21","modified_gmt":"2018-03-13T01:47:21","slug":"%e4%bd%bf%e7%94%a8kerberos%e7%bb%99linux%e9%89%b4%e6%9d%83","status":"publish","type":"post","link":"http:\/\/www.max-shu.com\/blog\/?p=242","title":{"rendered":"\u4f7f\u7528Kerberos\u7ed9Linux\u9274\u6743"},"content":{"rendered":"
Kerberos\u548cLDAP\uff1a<\/b><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0Kerberos\uff1a\u9700\u8981\u5728linux\u548ckerberos\u4e0a\u540c\u65f6\u5177\u6709\u8be5\u7528\u6237\u624d\u80fd\u9274\u6743\uff0c\u76f8\u5f53\u4e8e\u8be5\u7528\u6237\u5177\u6709\u4e24\u4e2a\u5bc6\u7801\uff08linux\u4e0ashadow\u91cc\u9762\u4e00\u4e2a\uff0ckerberos\u91cc\u9762\u4e00\u4e2a\uff09\uff0c\u4e0d\u80fd\u4fdd\u5b58\u9664\u5bc6\u7801\u4e4b\u5916\u7684\u7528\u6237\u4fe1\u606f\uff0c\u4e0d\u8fc7\u9274\u6743\u6bd4\u8f83\u5b89\u5168\u3002<\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0LDAP\uff1a\u4e0d\u9700\u8981linux\u4e0a\u5177\u6709\u7528\u6237\uff0c\u5b83\u53ef\u4ee5\u7ba1\u7406\u7528\u6237\u7684\u5404\u79cd\u4fe1\u606f\uff08\u5305\u62ec\u7528\u6237\u7ec4\u7b49\uff09\uff0c\u8ddf\u7528\u6237\u76f8\u5173\u7684\u64cd\u4f5c\u5168\u90e8\u901a\u8fc7ldap\uff08\u5305\u62ecchown\u3001passwd\u7b49\u547d\u4ee4\uff0c\u5f53\u7136\u5ba2\u6237\u7aef\u5fc5\u987b\u9009\u62e9\u4f7f\u7528LDAP\u7ba1\u7406\u7528\u6237\u4fe1\u606f\u548c\u7528\u6237\u9274\u6743\uff09\u3002<\/div>\n
<\/div>\n
<\/div>\n
Kerberos\u9700\u8981\u4f60\u5728\u4e00\u4e2a\u5b89\u5168\u7684\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u4e24\u4e2a\u540e\u53f0\u8fdb\u7a0b\uff1a<\/b>
\n> \u5bc6\u94a5\u5206\u53d1\u4e2d\u5fc3\uff08KDC\uff09\u540e\u53f0\u8fdb\u7a0b\uff1a\u5904\u7406\u6240\u6709\u7684\u5bc6\u7801\u9a8c\u8bc1\u8bf7\u6c42\uff0c\u5e76\u751f\u6210Kerberos\u8bc1\u4e66\uff0c\u53eb\u505a\u51ed\u8bc1\u6388\u4e88\u51ed\u8bc1\uff08TGT\uff09\uff1b
\n> Kerberos\u7ba1\u7406\u8fdb\u7a0b\uff1a\u5141\u8bb8\u4f60\u8fdc\u7a0b\u6dfb\u52a0\u3001\u5220\u9664\u548c\u4fee\u6539\u8d26\u53f7\uff0c\u800c\u4e0d\u7528\u767b\u9646\u5230\u8fd0\u884cKerberos\u7ba1\u7406\u8fdb\u7a0b\u7684\u8ba1\u7b97\u673a\u4e0a\uff0c\u5b83\u4e5f\u5904\u7406\u6765\u81ea\u7528\u6237\u7684\u5bc6\u7801\u4fee\u6539\u8bf7\u6c42\u3002
\n\u4f7f\u7528Kerberos\uff0c\u53ea\u6709\u4e00\u4e2a\u5bc6\u7801\u4fee\u6539\u9700\u8981\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u4e00\u4e2a\u5f3a\u58ee\u7684\u52a0\u5bc6\u5bc6\u7801\u3002\u8ba4\u8bc1\u7528\u6237\u7684\u8fc7\u7a0b\u4e2d\uff0cKerberos KDC\u7ed9\u7528\u6237\u6388\u4e88\u4e00\u4e2a\u4e34\u65f6\u7684\u8bc1\u4e66\uff0cTGT\uff0c\u5178\u578b\u5730\uff0c\u8fd9\u4e9b\u8bc1\u4e66\u670910\u621624\u5c0f\u65f6\u7684\u6709\u6548\u671f\uff0c\u8fd9\u4e2a\u6709\u6548\u671f\u662f\u53ef\u4ee5\u914d\u7f6e\u7684\uff0c\u4f46\u662f\u4e0d\u80fd\u8d85\u8fc724\u5c0f\u65f6\u3002
\nrealm\uff08Kerberos\u533a\u57df\uff09\uff1a\u5b83\u662f\u4e00\u4e2a\u7ba1\u7406\u57df\uff0c\u5b83\u6709\u81ea\u5df1\u7684Kerberos\u6570\u636e\u5e93\uff0c\u6bcf\u4e2aKerberos\u533a\u57df\u90fd\u6709\u5b83\u81ea\u5df1\u7684\u4e00\u5957Kerberos\u670d\u52a1\u5458\uff0c\u4f60\u7684\u533a\u57df\u540d\u53ef\u4ee5\u662f\u4efb\u4f55\u5185\u5bb9\uff0c\u4f46\u662f\u5b83\u5e94\u8be5\u6620\u5c04\u5230\u4f60\u5728DNS\u4e2d\u7684\u533a\u57df\uff0c\u5982\u679c\u65b0Kerberos\u533a\u57df\u662f\u4e3a\u4f60\u7684\u6574\u4e2aDNS\u57dfexample.com\u51c6\u5907\u7684\uff0c\u4f60\u5e94\u8be5\u5c06\u4f60\u7684Kerberos\u533a\u57df\u53d6\u4e00\u4e2a\u76f8\u540c\u7684\u540d\u5b57\uff08\u6240\u6709\u5b57\u6bcd\u5927\u5199\uff0c\u8fd9\u662fKerberos\u7684\u60ef\u4f8b\uff09\uff1aEXAMPLE.COM\uff0c\u6216\u8005\uff0c\u5982\u679c\u4f60\u6b63\u5728example.com\u4e0b\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5de5\u7a0b\u90e8\u533a\u57df\uff0c\u4f60\u5e94\u8be5\u9009\u9879ENG.EXAMPLE.COM\u4f5c\u4e3a\u533a\u57df\u540d\u3002<\/p>\n

1. \u5b89\u88c5\uff1a<\/b>
\n# yum install krb5-server
\n\u914d\u7f6ekerberos\u96c6\u7fa4\u7684\u603b\u63a7\u6587\u4ef6\uff0ckerberos\u670d\u52a1\u53ef\u4ee5\u7531\u591a\u53f0\u670d\u52a1\u5668\u7ec4\u6210\uff0c\u5176\u4e2d\u6709\u4e14\u53ea\u6709\u4e00\u53f0\u4f5cmaster\uff0c\u7531admin_server\u51b3\u5b9a\u8be5master\u5728\u54ea\u91cc\u3002\uff1a
\n# vi \/etc\/krb5.conf
\n[logging]
\ndefault = FILE:\/var\/log\/krb5libs.log
\nkdc = FILE:\/var\/log\/krb5kdc.log
\nadmin_server = FILE:\/var\/log\/kadmind.log<\/p>\n

[libdefaults]
\ndefault_realm = HANBORQ.COM
\ndns_lookup_realm = false
\ndns_lookup_kdc = false
\nticket_lifetime = 24h
\nforwardable = yes<\/p>\n

[realms]
\nHANBORQ.COM = {
\nkdc = nd0-rack2-cloud:88
\nadmin_server = nd0-rack2-cloud:749
\ndefault_domain = hanborq.com
\n}<\/p>\n

[domain_realm]
\n.hanborq.com = HANBORQ.COM<\/p><\/div>\n

hanborq.com = HANBORQ.COM<\/p>\n

[appdefaults]
\npam = {
\ndebug = false
\nticket_lifetime = 36000
\nrenew_lifetime = 36000
\nforwardable = true
\nkrb4_convert = false
\n}
\n\u5176\u4e2d[libdefaults]\uff1a\u5b9a\u4e49\u6574\u4e2akerberos\u7684\u7f3a\u7701\u503c\uff0c\u3002
\n\u5176\u4e2d[realms]\uff1a\u5b9a\u4e49Kerberos\u533a\u57df\uff0c\u53ef\u4ee5\u5b9a\u4e49\u591a\u4e2a\uff0c\u5b83\u91cc\u9762\u7684kdc\u8868\u793akdc\u8fdb\u7a0b\u8fd0\u884c\u5728\u54ea\u91cc\uff0cadmin_server\u8868\u793a\u7ba1\u7406\u8fdb\u7a0b\u8fd0\u884c\u5728\u54ea\u91cc\uff0cdefault_domain\u8868\u793a\u7f3a\u7701\u5904\u7406\u54ea\u4e2aDNS\u57df\u540d\u3002
\n\u5176\u4e2d[domain_realm]\uff1a\u5b9a\u4e49\u4e3b\u673a\u6216DNS\u57df\u540d\u5230kerberos\u57df\u7684\u6620\u5c04\u5173\u7cfb\uff0c\u5c31\u662f\u90a3\u4e9bDNS\u57df\u540d\u6216\u4e3b\u673a\u7531\u54ea\u4e2akerberos\u57df\u5904\u7406\uff0c\u56e0\u4e3a\u524d\u9762\u7684default_domain\u53ea\u80fd\u5b9a\u4e49\u4e00\u4e2a\u57df\u540d\uff0c\u8fd9\u91cc\u53ef\u4ee5\u8ba9\u8be5\u57df\u5904\u7406\u66f4\u591a\u7684\u4e3b\u673a\u6216DNS\u57df\u540d\u3002<\/p>\n

\u914d\u7f6e\u5177\u4f53\u8be5\u96c6\u7fa4\u6bcf\u53f0\u673a\u5668\u7684kdc\u6587\u4ef6\uff1a
\n# vi \/var\/kerberos\/krb5kdc\/kdc.conf
\n[kdcdefaults]
\nv4_mode = nopreauth
\nkdc_tcp_ports = 88<\/p>\n

[realms]
\nHANBORQ.COM = {
\n#master_key_type = des3-hmac-sha1
\nacl_file = \/var\/kerberos\/krb5kdc\/kadm5.acl
\ndict_file = \/usr\/share\/dict\/words
\nadmin_keytab = \/var\/kerberos\/krb5kdc\/kadm5.keytab
\nsupported_enctypes = aes256-cts:normal aes128-cts:normal des3-hmac-sha1:normal arcfour-hmac:normal des-hmac-sha1:normal des-cbc-md5:normal des-cbc-crc:normal des-cbc-crc:v4 des-cbc-crc:afs3
\n}<\/p>\n

\u5efa\u7acbkerberos\u9274\u6743\u6570\u636e\u5e93\uff1a
\n# kdb5_util create -r HANBORQ.COM -s
\n\u4f1a\u8981\u6c42\u8f93\u5165\u6570\u636e\u5e93\u5bc6\u7801\uff0c\u5fc5\u987b\u8bb0\u4f4f\u8be5\u5bc6\u7801\u3002<\/p>\n

\u67e5\u770b\u90a3\u4e9bprincipal\u5df2\u7ecf\u5efa\u7acb\uff1a
\n# kadmin.local -q “listprincs”
\nAuthenticating as principal root\/admin@HANBORQ.COM with password.
\nK\/M@HANBORQ.COM
\nkadmin\/admin@HANBORQ.COM
\nkadmin\/changepw@HANBORQ.COM
\nkadmin\/history@HANBORQ.COM
\nkadmin\/nd0-rack2-cloud@HANBORQ.COM
\nkrbtgt\/HANBORQ.COM@HANBORQ.COM
\n\u5efa\u7acbkeytab\uff0c\u6ce8\u610fkeytab\u8ddf\u4e0a\u9762kdc.conf\u6587\u4ef6\u4e2d\u4e00\u81f4\uff1a
\n# kadmin.local -q “ktadd -k \/var\/kerberos\/krb5kdc\/kadm5.keytab kadmin\/admin”
\n# kadmin.local -q “ktadd -k \/var\/kerberos\/krb5kdc\/kadm5.keytab kadmin\/changepw”
\n\u589e\u52a0\u7528\u6237\uff0c\u9700\u8bb0\u4f4f\u5bc6\u7801\uff1a
\n# kadmin.local -q “addprinc krbadm@HANBORQ.COM”
\n# kadmin.local -q “addprinc ldapadm@HANBORQ.COM”
\n# kadmin.local -q “delprinc XXX@HANBORQ.COM”
\n\u4fee\u6539ACL\u89c4\u5219\uff0c\u6587\u4ef6\u4f4d\u7f6e\u5c31\u662fkdc.conf\u91cc\u9762\u5b9a\u4e49\u7684\uff1a
\n# vi \/var\/kerberos\/krb5kdc\/kadm5.acl
\nkrbadm@HANBORQ.COM\u00a0\u00a0\u00a0\u00a0\u00a0 *
\n*\/admin@HANBORQ.COM\u00a0\u00a0\u00a0\u00a0 *
\n*\/*@HANBORQ.COM\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 i
\n*@HANBORQ.COM\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 i<\/p>\n

\u542f\u52a8\uff1a<\/b>
\n# service krb5kdc start
\n# service krb524 start
\n# \/usr\/kerberos\/sbin\/kadmind
\n\u6d4b\u8bd5\u4e00\u4e0b\uff1a
\n# kadmin -p krbadm -q “listprincs”
\n# kadmin -p krbadm
\n# kadmin -p ldapadm -q “listprincs”
\n\u6700\u540e\u4e00\u4e2a\u4f1a\u63d0\u793a\u6ca1\u6709list\u6743\u9650\uff0c\u56e0\u4e3aACL\u89c4\u5219\u91cc\u9762\u6ca1\u6709\u6dfb\u52a0\u8be5\u7528\u6237\u3002
\n\u6d4b\u8bd5\u5ba2\u6237\u7aef\u80fd\u5426\u5f97\u5230ticket\uff1a
\n# kinit krbadm@HANBORQ.COM
\n# klist
\nklist\u547d\u4ee4\u80fd\u770b\u5230\u5df2\u7ecf\u5f97\u5230\u4e86ticket\u3002<\/p>\n

Linux SSH\u901a\u8fc7Kerberos\u767b\u5f55\uff0c\u5fc5\u987b\u5728kerberos\u548clinux\u540c\u65f6\u5b58\u5728\u8be5\u7528\u6237\u624d\u80fd\u4f7f\u7528kerberos\u9274\u6743\u767b\u5f55\uff0c\u56e0\u4e3akerberos\u53ea\u80fd\u4fdd\u5b58\u7528\u6237\u540d\u3001\u5bc6\u7801\uff0c\u4e0d\u80fd\u4fdd\u5b58\u5176\u5b83\u7528\u6237\u4fe1\u606f\uff0c\u9700\u8981\u4fdd\u5b58\u7684\u8bdd\uff0c\u5e94\u8be5\u4f7f\u7528LDAP\uff1a<\/b>
\n\u6253\u5f00Kerberos\u9274\u6743\uff1a<\/div>\n

# sed -i “\/USEKERBEROS=\/d” \/etc\/sysconfig\/authconfig && echo “USEKERBEROS=yes” >> \/etc\/sysconfig\/authconfig<\/div>\n
<\/div>\n
\u62f7\u8d1dkerberos\u670d\u52a1\u5668\u4e0a\u7684krb5.conf\u6587\u4ef6\u5230\u5ba2\u6237\u7aef\uff1a
\n# scp KERBEROS_SERVER:\/etc\/krb5.conf \/etc\/krb5.conf
\n\u4fee\u6539pam\u8bbe\u7f6e\uff0c\/etc\/pam.d\/system-auth\u6587\u4ef6\u589e\u52a0\u5185\u5bb9\uff0c\u6ce8\u610f\u653e\u7f6e\u7684\u4f4d\u7f6e\uff1a
\n# vi \/etc\/pam.d\/system-auth<\/div>\n
…<\/div>\n
auth\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 required\u00a0\u00a0\u00a0\u00a0\u00a0 pam_env.so
\nauth\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 sufficient\u00a0\u00a0 pam_krb5.so use_first_pass ignore_root forwardable
\nauth\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 required\u00a0\u00a0\u00a0\u00a0 pam_unix.so nullok_secure try_first_pass<\/span><\/div>\n
…<\/div>\n

session\u00a0\u00a0\u00a0 sufficient\u00a0\u00a0 pam_unix.so<\/p>\n

session\u00a0\u00a0\u00a0 sufficient\u00a0\u00a0 pam_krb5.so ignore_root<\/span><\/div>\n
…<\/div>\n
\u8fd9\u91cc\u7684use_first_pass\u548ctry_first_pass\u53ea\u80fd\u8bf7\u6c42\u4e00\u6b21\u53e3\u4ee4\uff0cignore_root\u8868\u793akerberos\u4e0d\u80fd\u7528\u4e8eroot\u767b\u5f55\uff08\u597d\u8c61\u65e0\u6548\uff09\uff0csufficient\u8868\u793a\u8be5\u6761\u6210\u529f\u5219\u8fd4\u56de\uff0c\u540e\u9762\u4e0d\u6267\u884c\u3002<\/p>\n<\/div>\n
\u4fee\u6539sshd\u914d\u7f6e\uff1a
\n# vi \/etc\/ssh\/sshd_config
\nKerberosAuthentication yes
\nKerberosOrLocalPasswd yes
\nKerberosTicketCleanup yes
\nUsePAM yes
\nAllowTcpForwarding yes
\nGSSAPIAuthentication yes
\nGSSAPICleanupCredentials yes
\nGssapiKeyExchange yes<\/p>\n<\/div>\n
\u4fee\u6539ssh\u914d\u7f6e\uff1a
\n# vi \/etc\/ssh\/ssh_config
\nHost *
\nGSSAPIAuthentication yes
\nGSSAPIDelegateCredentials yes<\/p>\n<\/div>\n
\u91cd\u542fsshd\u670d\u52a1\uff1a
\n# service sshd restart<\/p>\n<\/div>\n
\u589e\u52a0\u4e3b\u673akeytab\uff1a<\/b><\/div>\n
# kadmin -p krbadm -q “addprinc -randkey host\/vmw1@HANBORQ.COM”<\/div>\n
# kadmin -p krbadm -q “ktadd host\/vmw1@HANBORQ.COM”
\n\u8fd9\u91cc\u7684host\u56fa\u5b9a\u4e3a”host”\u56db\u4e2a\u5b57\u7b26\uff0cvmw1\u4e3a\u5ba2\u6237\u7aefhostnname\u6216DNS\u57df\u540d\uff0c-randkey\u4f7f\u7528\u968f\u673akey\u767b\u5f55\uff0c\u4e0d\u7528\u8f93\u5165\u5bc6\u7801\u3002<\/p>\n

\u5728\u5ba2\u6237\u7aef\u589e\u52a0\u7528\u6237\uff1a<\/b>
\n# useradd testUser
\nKerberos\u91cc\u9762\u6dfb\u52a0\u7528\u6237\uff0c\u6709\u8981\u6c42\u8f93\u5165krbadm\u7684\u5bc6\u7801\u548c\u65b0\u7528\u6237\u9700\u8981\u7684\u5bc6\u7801\uff1a
\n# kadmin -p krbadm -q “addprinc testUser@HANBORQ.COM”<\/p>\n

\u767b\u5f55\uff1a<\/b>
\n# ssh testUser@10.24.1.40
\n\u53ef\u4ee5\u4f7f\u7528kerberos\u91cc\u9762\u7684\u5bc6\u7801\u767b\u5f55\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u4f7f\u7528linux\u91cc\u9762\u7684\u5bc6\u7801\u767b\u5f55\u3002<\/div>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

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