Sommario

Introduzione

Prerequisiti

Requisiti

Componenti usati

Script di configurazione di Azure AD per Cisco Email Security

Informazioni correlate

Introduzione

In questo documento viene fornito uno script che può essere eseguito da un ambiente UNIX/Linux per semplificare il processo utilizzato per creare un certificato autofirmato e sono richiesti i passaggi di Microsoft Azure quando necessari per configurare Cisco Email Security. Questo script può essere utilizzato per Mailbox Auto Remediation (MAR), Microsoft Office 365 LDAP Connector o Cisco Threat Analyzer per Office 365. È indipendente e può essere utilizzato con tutte le versioni di AsyncOS for Email Security Appliance (ESA).

Nota: Questo articolo è una prova di concetto e fornito come base di esempio. Benché questi passaggi siano stati testati con successo, questo articolo è destinato principalmente a scopi dimostrativi e illustrativi. Gli script personalizzati non rientrano nell'ambito e nella supportabilità di Cisco. In qualsiasi momento, Cisco Technical Assistance Center (TAC) non scrive, non aggiorna né non esegue la risoluzione dei problemi relativi agli script esterni. Prima di provare a creare uno script, accertatevi di disporre delle conoscenze necessarie per creare lo script finale.

Nota: Il supporto Cisco TAC e Cisco non sono autorizzati a risolvere i problemi del lato cliente con Microsoft Exchange, Microsoft Azure AD o Office 365.

Prerequisiti

Requisiti

Cisco consiglia di leggere e comprendere le procedure per configurare le impostazioni delle cassette postali di Azure AD e Office 365 per ESA.

Componenti usati

Il documento può essere consultato per tutte le versioni software o hardware.

Per lo scopo e l'esecuzione di questo script, si presuppone che sia installato OpenSSL. Dal prompt del terminale, eseguire la versione openssl o openssl per verificare l'installazione.

Ai fini di questo articolo, lo script verrà chiamato ed eseguito come my_azure.sh. Assegnare al testo il nome desiderato.

Le informazioni discusse in questo documento fanno riferimento a dispositivi usati in uno specifico ambiente di emulazione. Su tutti i dispositivi menzionati nel documento la configurazione è stata ripristinata ai valori predefiniti. Se la rete è operativa, valutare attentamente eventuali conseguenze derivanti dall'uso dei comandi.

Script di configurazione di Azure AD per Cisco Email Security

Da un host esterno (UNIX/Linux), creare uno script e copiare e incollare il seguente testo:

clear

echo "#####################################################################################

my_azure.sh by Robert Sherwin (robsherw@cisco.com)  ©2018 Cisco .:|:.:|:.

Using openssl, this script will create a self-signed certificate for you to use in

order to complete the Mailbox Settings configuration for Cisco Email Security.

Please respond to the following prompts:

#####################################################################################

"

if which openssl >/dev/null; then

echo "openssl check passed: openssl is installed!" & openssl version

else

echo "You do not appear to have openssl installed." && exit

fi

echo "

Please enter a name for your cert: "

read my_cert

while [ -f $my_cert.key ];

do

echo "File exists, please enter a name for your cert: " && read my_cert

done

echo "

Thank you.  The files that will be generated for your cert are: "

crt=$my_cert.crt

key=$my_cert.key

pem=$my_cert.pem

echo $crt

echo $key

echo $pem

echo ""

while true; do

read -p "Are you ready to proceed and generate these files for your configuration? $(tput smso)(y/n)$(tput sgr0) " yn

case $yn in

[Yy]* ) openssl req -x509 -sha256 -nodes -days 1825 -newkey rsa:2048 -keyout $key -out $crt

openssl rsa -in $key -out $key

cat $key $crt > $pem

echo ""

base64Thumbprint=`openssl x509 -outform der -in $crt | openssl dgst -binary -sha1 | openssl base64`

base64Value=`openssl x509 -outform der -in $crt | openssl base64 -A`

keyid=`python -c "import uuid; print(uuid.uuid4())"`

echo "

##########################################################################

Next, $(tput smul)copy$(tput rmul) the following to Azure for your manifest:

##########################################################################

"

echo "\"keyCredentials\": [

{

\"customKeyIdentifier\": \"$base64Thumbprint\",

\"keyId\": \"$keyid\",

\"type\": \"AsymmetricX509Cert\",

\"usage\": \"Verify\",

\"value\": \"$base64Value\"

}

],"

echo "

##########################################################################

Then $(tput smul)complete$(tput rmul) the Azure configuration to get the $(tput smso)Client ID$(tput sgr0) and $(tput smso)Tenant ID$(tput sgr0).

##########################################################################

"

echo "This is the $(tput smso)Thumbprint$(tput sgr0) for your ESA configuration: $base64Thumbprint"

echo "This is the $(tput smso)Certificate Private Key$(tput sgr0) for your ESA configuration: $pem

"; break;;

[Nn]* ) exit;;

* ) echo "Please answer yes or no.";;

esac

done

while true; do

read -p "Do you wish to review this certificate in detail? $(tput smso)(y/n)$(tput sgr0) " yn

case $yn in

[Yy]* ) openssl x509 -in $crt -text; echo "

Thank you!" && break;;

[Nn]* ) echo "Thank you!" && exit;;

* ) echo "Please answer yes or no.";;

esac

done

Suggerimento: Una volta scritto lo script, immettere chmod u+x <nome_script> per renderlo eseguibile.

Un esempio completo dello script in azione dovrebbe produrre:

my_host$ ./my_azure

#####################################################################################

my_azure.sh by Robert Sherwin (robsherw@cisco.com)  ©2018 Cisco .:|:.:|:.

Using openssl, this script will create a self-signed certificate for you to use in

order to complete the Mailbox Settings configuration for Cisco Email Security.

Please respond to the following prompts:

#####################################################################################

openssl check passed: openssl is installed!

LibreSSL 2.2.7

Please enter a name for your cert:

technote_example

Thank you.  The files that will be generated for your cert are:

technote_example.crt

technote_example.key

technote_example.pem

Are you ready to proceed and generate these files for your configuration? (y/n) y

Generating a 2048 bit RSA private key

..............................................................+++

.............................................+++

writing new private key to 'technote_example.key'

-----

You are about to be asked to enter information that will be incorporated

into your certificate request.

What you are about to enter is what is called a Distinguished Name or a DN.

There are quite a few fields but you can leave some blank

For some fields there will be a default value,

If you enter '.', the field will be left blank.

-----

Country Name (2 letter code) []:US

State or Province Name (full name) []:North Carolina

Locality Name (eg, city) []:RTP

Organization Name (eg, company) []:Cisco

Organizational Unit Name (eg, section) []:Example Dept.

Common Name (eg, fully qualified host name) []:example.local

Email Address []:joe.user@example.local

writing RSA key

##########################################################################

Next, copy the following to Azure for your manifest:

##########################################################################

"keyCredentials": [

{

"customKeyIdentifier": "wWHhkWEfuhDHTXPzzmHoSEnjbNM=",

"keyId": "338836b8-fc8d-4e1b-9a3f-b252f8368d34",

"type": "AsymmetricX509Cert",

"usage": "Verify",

"value": "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"

}

],

##########################################################################

Then complete the Azure configuration to get the Client ID and Tenant ID.

##########################################################################

This is the Thumbprint for your ESA configuration: wWHhkWEfuhDHTXPzzmHoSEnjbNM=

This is the Certificate Private Key for your ESA configuration: technote_example.pem

Lo script richiederà di esaminare il certificato in dettaglio. Per completare lo script, immettere y o n.

Do you wish to review this certificate in detail? (y/n) y

Certificate:

Data:

Version: 1 (0x0)

Serial Number: 15410674582220606938 (0xd5ddb6e21e668dda)

Signature Algorithm: sha256WithRSAEncryption

Issuer: C=US, ST=North Carolina, L=RTP, O=Cisco, OU=Example Dept., CN=example.local/emailAddress=joe.user@example.local

Validity

Not Before: Oct 18 02:00:49 2018 GMT

Not After : Oct 17 02:00:49 2023 GMT

Subject: C=US, ST=North Carolina, L=RTP, O=Cisco, OU=Example Dept., CN=example.local/emailAddress=joe.user@example.local

Subject Public Key Info:

Public Key Algorithm: rsaEncryption

Public-Key: (2048 bit)

Modulus:

00:a9:58:99:6e:c3:37:e0:31:71:94:1c:a5:cf:21:

66:19:af:f7:2a:8c:1e:e9:76:72:35:77:1b:4f:3c:

9a:41:ad:45:95:39:29:45:4d:29:96:52:98:c9:67:

cb:79:4e:2a:0e:9c:4e:ee:04:cf:85:2e:8a:0c:c2:

ff:62:57:11:fd:fe:c0:e8:fd:60:28:4a:f7:66:c4:

61:68:d8:b0:a7:99:b5:b2:28:a9:84:5f:1c:4f:92:

93:e6:ec:25:be:46:a6:2c:d7:80:f7:18:64:68:de:

f3:57:9c:81:a9:a1:0e:b8:3b:35:9a:ed:84:f4:d2:

29:ae:19:c6:66:30:a5:09:7a:c4:60:eb:32:2a:68:

94:6a:04:35:ff:9e:c8:d0:a8:e5:5c:80:5e:5c:6e:

60:7f:26:ea:dd:06:74:fc:3e:54:a1:c9:ee:4f:b8:

c0:8f:4a:4d:4c:38:2c:00:68:39:6b:3c:85:49:c3:

8b:4c:b3:da:4f:66:a8:db:d3:1b:eb:bb:e4:45:14:

32:07:13:59:cf:c8:4a:c5:e3:0b:c9:29:6c:eb:31:

b5:e6:48:89:4e:31:52:fa:8d:77:5b:7d:ea:27:1c:

8d:a7:75:f6:7e:b5:25:db:30:19:7f:82:0b:53:e5:

f9:96:4c:93:cf:c8:40:43:ed:6c:fa:ac:ff:8a:77:

72:61

Exponent: 65537 (0x10001)

Signature Algorithm: sha256WithRSAEncryption

42:aa:bb:8b:10:5b:b5:f8:68:ae:b5:a4:ef:7b:82:a1:85:0f:

46:a5:99:2c:a1:e5:82:cd:54:a4:49:e6:3e:3b:cb:66:22:26:

63:e3:ba:92:24:7d:89:c0:d5:8c:50:f8:ec:05:be:d2:f6:20:

de:91:ed:ea:92:96:97:b4:d4:66:98:a5:cf:88:4d:a7:4a:18:

73:fa:a3:77:a6:82:03:c0:76:28:c9:9b:7e:1d:83:56:19:a9:

61:65:bc:3f:bc:1b:34:ff:e2:9b:7d:75:e0:5f:f3:26:f0:55:

9c:78:de:69:8f:4a:b2:e4:d4:53:9e:16:6f:c5:57:d8:51:57:

e3:4f:d8:16:6f:c7:4c:7a:d7:70:71:f2:5b:2e:57:05:4f:4c:

15:59:84:bb:e6:2f:e8:92:31:09:a1:20:8f:92:7b:8d:5e:2a:

19:03:3e:f9:f9:fe:12:94:4f:91:51:e7:f3:8e:07:ce:0c:66:

e3:46:d1:5b:be:3b:ae:31:ae:c8:ab:2c:f8:4d:ad:8d:62:53:

e8:e9:83:27:8a:ee:1c:21:5d:be:19:19:be:fc:d5:27:25:67:

d0:f5:4d:f9:cc:28:27:48:0b:33:ba:76:a1:ae:c9:dc:87:4d:

67:7a:76:08:c5:ef:15:d6:6c:46:21:45:52:90:48:6c:ad:d5:

62:51:51:ae

-----BEGIN CERTIFICATE-----

MIIDtDCCApwCCQDV3bbiHmaN2jANBgkqhkiG9w0BAQsFADCBmzELMAkGA1UEBhMC

VVMxFzAVBgNVBAgMDk5vcnRoIENhcm9saW5hMQwwCgYDVQQHDANSVFAxDjAMBgNV

BAoMBUNpc2NvMRYwFAYDVQQLDA1FeGFtcGxlIERlcHQuMRYwFAYDVQQDDA1leGFt

cGxlLmxvY2FsMSUwIwYJKoZIhvcNAQkBFhZqb2UudXNlckBleGFtcGxlLmxvY2Fs

MB4XDTE4MTAxODAyMDA0OVoXDTIzMTAxNzAyMDA0OVowgZsxCzAJBgNVBAYTAlVT

MRcwFQYDVQQIDA5Ob3J0aCBDYXJvbGluYTEMMAoGA1UEBwwDUlRQMQ4wDAYDVQQK

DAVDaXNjbzEWMBQGA1UECwwNRXhhbXBsZSBEZXB0LjEWMBQGA1UEAwwNZXhhbXBs

ZS5sb2NhbDElMCMGCSqGSIb3DQEJARYWam9lLnVzZXJAZXhhbXBsZS5sb2NhbDCC

ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKlYmW7DN+AxcZQcpc8hZhmv

9yqMHul2cjV3G088mkGtRZU5KUVNKZZSmMlny3lOKg6cTu4Ez4UuigzC/2JXEf3+

wOj9YChK92bEYWjYsKeZtbIoqYRfHE+Sk+bsJb5GpizXgPcYZGje81ecgamhDrg7

NZrthPTSKa4ZxmYwpQl6xGDrMipolGoENf+eyNCo5VyAXlxuYH8m6t0GdPw+VKHJ

7k+4wI9KTUw4LABoOWs8hUnDi0yz2k9mqNvTG+u75EUUMgcTWc/ISsXjC8kpbOsx

teZIiU4xUvqNd1t96iccjad19n61JdswGX+CC1Pl+ZZMk8/IQEPtbPqs/4p3cmEC

AwEAATANBgkqhkiG9w0BAQsFAAOCAQEAQqq7ixBbtfhorrWk73uCoYUPRqWZLKHl

gs1UpEnmPjvLZiImY+O6kiR9icDVjFD47AW+0vYg3pHt6pKWl7TUZpilz4hNp0oY

c/qjd6aCA8B2KMmbfh2DVhmpYWW8P7wbNP/im3114F/zJvBVnHjeaY9KsuTUU54W

b8VX2FFX40/YFm/HTHrXcHHyWy5XBU9MFVmEu+Yv6JIxCaEgj5J7jV4qGQM++fn+

EpRPkVHn844Hzgxm40bRW747rjGuyKss+E2tjWJT6OmDJ4ruHCFdvhkZvvzVJyVn

0PVN+cwoJ0gLM7p2oa7J3IdNZ3p2CMXvFdZsRiFFUpBIbK3VYlFRrg==

-----END CERTIFICATE-----

Thank you!

Al momento, sono disponibili tre file: crt, key e pem.

Usare l'output keyCredentials come indicato e copiarlo in Azure quando si configura la registrazione dell'app. L'output Thumbprint e la chiave privata del certificato (.pem) sono necessari quando si eseguono i passaggi di configurazione su Cisco Email Security.

Informazioni correlate

- Cisco Email Security Appliance - Guide per l'utente

- Documentazione e supporto tecnico – Cisco Systems