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May 28, 2026

Global Acceptance and Proposal Policies Defined in Horizon LDAP

You can edit the Horizon LDAP attributes that define global acceptance and proposal policies. Security-related settings are provided in Horizon LDAP under the object path cn=common,ou=global,ou=properties,dc=vdi,dc=horizon,dc=internal.

Global Acceptance Policies

AttributeDescription
pae-ServerSSLSecureProtocolsLists security protocols. You must order the list by placing the latest protocol first. For example:
pae-ServerSSLSecureProtocols = \LIST:TLSv1.3,TLSv1.2,TLSv1.1,TLSv1
pae-ServerSSLCipherSuitesLists cipher suites. This example shows an abbreviated list:
pae-ServerSSLCipherSuites = \LIST:TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA
pae-ServerSSLHonorClientOrderControls the precedence of cipher suites. Normally, the server's ordering of cipher suites is unimportant and the client's ordering is used. To use the server's ordering of cipher suites instead, set the following attribute:
pae-ServerSSLHonorClientOrder = 0
pae-SSLServerSignatureSchemesLists certificate signature schemes. This example shows an abbreviated list:
pae-SSLServerSignatureSchemes = \LIST:rsa_pss_rsae_sha256,rsa_pkcs1_sha512,rsa_pkcs1_sha1

Global Proposal Policies

AttributeDescription
pae-ClientSSLSecureProtocolsLists security protocols. You must order the list by placing the latest protocol first:
pae-ClientSSLSecureProtocols = \LIST:TLSv1.3,TLSv1.2,TLSv1.1,TLSv1
pae-ClientSSLCipherSuitesLists cipher suites. This list should be in order of preference. Place the most preferred cipher suite first, the second-most preferred suite next, and so on. This example shows an abbreviated list:
pae-ClientSSLCipherSuites = \LIST:TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA
pae-SSLClientSignatureSchemesLists certificate signature schemes. This example shows an abbreviated list:
pae-SSLClientSignatureSchemes = \LIST:rsa_pss_rsae_sha256,rsa_pkcs1_sha512,rsa_pkcs1_sha1

Global Common Policies

AttributeDescription
pae-SSLNamedGroupsLists named groups (elliptic curves and Diffie-Hellman groups), both proposed and accepted. This example shows an abbreviated list:
pae-SSLNamedGroups = \LIST:secp384r1,secp256r1,ffdhe2048

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