6736ee2251
Depends-On: https://review.opendev.org/940561 Change-Id: I691fafc25b377d812d002fae34aef2e0bc8e552a
47 lines
1.7 KiB
Bash
Executable File
47 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (C) 2011-2013 OpenStack Foundation
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# Copyright 2016 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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#
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# See the License for the specific language governing permissions and
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# limitations under the License.
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if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
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set -x
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fi
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set -eu
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set -o pipefail
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# NOTE(pabelanger): Glean configures access for root user, so allow us to
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# properly login.
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sed -i -e'/PermitRootLogin/d' /etc/ssh/sshd_config \
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&& echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
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# NOTE(clarkb): Glean configures ssh keys only and not passwords. Disable
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# unnecessary password auth.
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sed -i -e '/PasswordAuthentication/d' /etc/ssh/sshd_config \
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&& echo "PasswordAuthentication no" >> /etc/ssh/sshd_config
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# NOTE(clarkb): SSH scanners may be affecting Zuul ssh connectivity
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# Default LoginGraceTime is 120. Reduce that to 30 to cycle connections more
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# quickly.
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sed -i -e '/LoginGraceTime/d' /etc/ssh/sshd_config \
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&& echo "LoginGraceTime 30" >> /etc/ssh/sshd_config
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# NOTE(clarkb): SSH scanners may be affecting Zuul ssh connectivity
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# Default MaxStartups is 10:30:100 which means after 10 unauthenticated
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# connections randomly drop 30% of connections with an increasing
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# percentage until 100 connections is reached.
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sed -i -e '/MaxStartups/d' /etc/ssh/sshd_config \
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&& echo "MaxStartups 30:10:100" >> /etc/ssh/sshd_config
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