Renewing a Self-Signed Web Certificate (CTPView Server Menu)

date_range 24-Jul-24

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Before you begin, log in to the CTPView server and access the CTPView Configuration Menu. See Accessing the CTPView Server Configuration Menu (CTPView Server Menu).

To renew a self-signed Web certificate:

Verify that the existing certificate has expired by running the command openssl x509 -noout -text -in <your_cert.crt> | grep -i -A2 validity.
[juniper_sa@ctpview /tmp 29]$ openssl x509 -noout -text -in <your_cert.crt> | grep -i -A2 validity
```
        Validity
            Not Before: May 30 05:57:02 2024 GMT
            Not After : May 30 05:57:02 2025 GMT
[juniper_sa@ctpview /tmp 30]$
```
Renew the certificate for 10 years by running the command openssl x509 -req -in <your_cert.csr> -days 3650 -signkey <your_cert.key> -out <your_cert.crt>.
[juniper_sa@ctpview /tmp 59]$ openssl x509 -req -in <your_cert.csr> -days 3650 -signkey <your_cert.key> -out <your_cert.crt>
```
Certificate request self-signature ok
subject=CN = <your_cert>, O = CG, OU = " ", OU = " ", OU = " ", C = IN, ST = " ", L = " "
```

Verify the modulus of the original server key by running the command openssl rsa -noout -modulus -in <your_cert.key> and the modulus of renewed certificate by running the command openssl x509 -noout -modulus -in <your_cert.crt>. They must match.

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[juniper_sa@ctpview /tmp 60]$ openssl x509 -noout-modulus -in your_cert.crt
Modulus=94BEF7C734FC8F63C3B792AB383884CBB9BFDC0023BB6525BA94D59CF621315CE8D8F44
07EB5558E89C9D0AA1FD3088D7F00524EAE4B455529D52A500E80F5F153B4A76F92A411334A587A
CE1EB7060D61B7A9287627DE88FA6E3C616A233972A7EFBF61E3DAEEF701DE820DAE2089988ADCE
5851FED022D306271DFB83264CBCA9F46F8A3FA2E975BA346F10F60A22BFBECAE68B49435E8908F
28A59EBF02194121AD8918ABB4D7B8DF1B719F3FF57CD137CCA51CC9E4AED1A3F4D1592943D1754
39E151C84524F56669A0888002D0B8A01A63A5CA409D718321DDD25DAB8CC68A54E805038A47F67
D7B7A4516525889F3A55196475EF3FBEC63E814DEF899A534C7212DED1173B022B029E4C9AB8C86
911093BD27E88D9E187FE483F305825D02083B28FD2ABC910513FBABD8C204010BAC7A7AA3DE093
61B634C961A2C4F0CAC547AE31A35CFBDBBBB2C934F1E055098C50161AC95769EC4AD257577A4A5
0D8058DB44185A359E8964B4EC701C3D52B83F1ED4E4DD3DB634CBA6A95FDE0A60859F132680B51
02C5D32864EEE1C6FC121A6DFC160984F5A6E49612D77A5AF3560CA43083B12CB97448941CDD40A
950E7D58D628D53E2A160388BF47AC8CE4F4D577CFDA6495E9CFC13F4E3D0B87B57DB099501269A
6F3C871D2844B46E631548BC5D8534A22C254AB8C85416D94871BA33B8B9DACDE3384EE82BA6C18
1F7DB

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[juniper_sa@ctpview /tmp 62]$ openssl rsa -noout -modulus -in your_cert.key
Modulus=94BEF7C734FC8F63C3B792AB383884CBB9BFDC0023BB6525BA94D59CF621315CE8D8F44
07EB5558E89C9D0AA1FD3088D7F00524EAE4B455529D52A500E80F5F153B4A76F92A411334A587A
CE1EB7060D61B7A9287627DE88FA6E3C616A233972A7EFBF61E3DAEEF701DE820DAE2089988ADCE
5851FED022D306271DFB83264CBCA9F46F8A3FA2E975BA346F10F60A22BFBECAE68B49435E8908F
28A59EBF02194121AD8918ABB4D7B8DF1B719F3FF57CD137CCA51CC9E4AED1A3F4D1592943D1754
39E151C84524F56669A0888002D0B8A01A63A5CA409D718321DDD25DAB8CC68A54E805038A47F67
D7B7A4516525889F3A55196475EF3FBEC63E814DEF899A534C7212DED1173B022B029E4C9AB8C86
911093BD27E88D9E187FE483F305825D02083B28FD2ABC910513FBABD8C204010BAC7A7AA3DE093
61B634C961A2C4F0CAC547AE31A35CFBDBBBB2C934F1E055098C50161AC95769EC4AD257577A4A5
0D8058DB44185A359E8964B4EC701C3D52B83F1ED4E4DD3DB634CBA6A95FDE0A60859F132680B51
02C5D32864EEE1C6FC121A6DFC160984F5A6E49612D77A5AF3560CA43083B12CB97448941CDD40A
950E7D58D628D53E2A160388BF47AC8CE4F4D577CFDA6495E9CFC13F4E3D0B87B57DB099501269A
6F3C871D2844B46E631548BC5D8534A22C254AB8C85416D94871BA33B8B9DACDE3384EE82BA6C18
1F7DB

Verify the validity of the renewed certificate by running the command openssl x509 -noout -text -in <your_cert.crt> | grep -i -A2 validity.

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[juniper_sa@ctpview /tmp 63]$ openssl x509 -noout -text -in <your_cert.crt> | grep -i -A2 validity
        Validity
            Not Before: May 31 06:30:54 2025 GMT
            Not After : May 29 06:30:54 2035 GMT

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