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Description of problem:
We've started upgrading our 8.0 test systems to 8.1, and have hit the same issue on all of them with sshd crashing out with the error
command-line: line 0: Bad configuration option: CASignatureAlgorithms
In most cases, that's left systems which are being upgraded without ability to ssh for ~20 minutes while the number of packages being updated in 8.1.
While tried to ssh its reporting following error for 'casignaturealgorithms' option
[root@rhel8 ~]# ssh rhel8
/etc/crypto-policies/back-ends/openssh.config: line 6: Bad configuration option: casignaturealgorithms
/etc/crypto-policies/back-ends/openssh.config: terminating, 1 bad configuration options
Service was running but was not able to perform ssh.
[root@rhel8 ~]# systemctl status sshd
● sshd.service - OpenSSH server daemon
Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2019-11-20 01:53:46 IST; 1min 48s ago
Docs: man:sshd(8)
man:sshd_config(5)
Main PID: 2909 (sshd)
This is critical issue, as users should be allowed to perform ssh while the upgrade is in progress.
That keeps happening until both libssh and crypto-policies have been updated (libssh presumably removed a CASignatureAlgorithm that crypto-policies is specifying in /etc/crypto-policies/back-ends/opensshserver.config).
Version-Release number of selected component (if applicable):
20181217-6.git9a35207.el8.noarch
How reproducible:
Start upgrade from RHEL 8.0 to 8.1
# yum update -y
Then try doing ssh from the same system to any other machine
# ssh <server-ip>
Steps to Reproduce:
1. Login to RHEL 8.0
2. Upgrade from RHEL 8.0 to 8.1
3. Try to perform ssh
Actual results:
sshd crashes with below output
/etc/crypto-policies/back-ends/openssh.config: line 6: Bad configuration option: casignaturealgorithms
/etc/crypto-policies/back-ends/openssh.config: terminating, 1 bad configuration options
Expected results:
SSHD should work fine.
Additional info:
Service was running but failed due to bad configuration option error for ' CASignatureAlgorithms'
After sometime was able to ssh again when both packages libssh and crypto-policies were updated.
Description of problem: We've started upgrading our 8.0 test systems to 8.1, and have hit the same issue on all of them with sshd crashing out with the error command-line: line 0: Bad configuration option: CASignatureAlgorithms In most cases, that's left systems which are being upgraded without ability to ssh for ~20 minutes while the number of packages being updated in 8.1. While tried to ssh its reporting following error for 'casignaturealgorithms' option [root@rhel8 ~]# ssh rhel8 /etc/crypto-policies/back-ends/openssh.config: line 6: Bad configuration option: casignaturealgorithms /etc/crypto-policies/back-ends/openssh.config: terminating, 1 bad configuration options Service was running but was not able to perform ssh. [root@rhel8 ~]# systemctl status sshd ● sshd.service - OpenSSH server daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; enabled; vendor preset: enabled) Active: active (running) since Wed 2019-11-20 01:53:46 IST; 1min 48s ago Docs: man:sshd(8) man:sshd_config(5) Main PID: 2909 (sshd) This is critical issue, as users should be allowed to perform ssh while the upgrade is in progress. That keeps happening until both libssh and crypto-policies have been updated (libssh presumably removed a CASignatureAlgorithm that crypto-policies is specifying in /etc/crypto-policies/back-ends/opensshserver.config). Version-Release number of selected component (if applicable): 20181217-6.git9a35207.el8.noarch How reproducible: Start upgrade from RHEL 8.0 to 8.1 # yum update -y Then try doing ssh from the same system to any other machine # ssh <server-ip> Steps to Reproduce: 1. Login to RHEL 8.0 2. Upgrade from RHEL 8.0 to 8.1 3. Try to perform ssh Actual results: sshd crashes with below output /etc/crypto-policies/back-ends/openssh.config: line 6: Bad configuration option: casignaturealgorithms /etc/crypto-policies/back-ends/openssh.config: terminating, 1 bad configuration options Expected results: SSHD should work fine. Additional info: Service was running but failed due to bad configuration option error for ' CASignatureAlgorithms' After sometime was able to ssh again when both packages libssh and crypto-policies were updated.