fedora28/29 ipmi 登录解决

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最近更新了 fedora 到 28，使用到了 ipmi

登录时会报:

The viewer has terminated.

Reason: The network connection has been dropped.

解决方案:

sed -i 's/ 3DES_EDE_CBC,//g' /etc/crypto-policies/back-ends/java.config

fedora29 上还需要:

sed -i 's/, RSA keySize < 2048//g' /etc/crypto-policies/back-ends/java.config

出现这个问题，初步发现与 fedora 28 上的 openssl cipehrs 有关:

fedora 28:
# openssl ciphers -s
ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM8:ECDHE-ECDSA-AES256-CCM:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM8:ECDHE-ECDSA-AES128-CCM:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:AES256-GCM-SHA384:AES256-CCM8:AES256-CCM:AES128-GCM-SHA256:AES128-CCM8:AES128-CCM:AES256-SHA256:CAMELLIA256-SHA256:AES128-SHA256:CAMELLIA128-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-SHA:CAMELLIA128-SHA:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES256-CCM8:DHE-RSA-AES256-CCM:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-CCM8:DHE-RSA-AES128-CCM:DHE-RSA-AES256-SHA256:DHE-RSA-CAMELLIA256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-CAMELLIA128-SHA

fedora 27:
# openssl ciphers -s
ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM8:ECDHE-ECDSA-AES256-CCM:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM8:ECDHE-ECDSA-AES128-CCM:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES256-CCM8:AES256-CCM:AES128-GCM-SHA256:AES128-CCM8:AES128-CCM:AES256-SHA256:CAMELLIA256-SHA256:AES128-SHA256:CAMELLIA128-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-SHA:CAMELLIA128-SHA:DES-CBC3-SHA:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES256-CCM8:DHE-RSA-AES256-CCM:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-CCM8:DHE-RSA-AES128-CCM:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:DHE-RSA-DES-CBC3-SHA:DHE-DSS-DES-CBC3-SHA