68 lines
1.9 KiB
Bash
68 lines
1.9 KiB
Bash
sudo truncate -s 0 /etc/sysctl.conf
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cat >> /etc/sysctl.conf <<EOF
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vm.swappiness=20
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net.ipv4.neigh.default.gc_stale_time = 120
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# see details in https://help.aliyun.com/knowledge_detail/39428.html
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net.ipv4.conf.all.rp_filter = 0
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net.ipv4.conf.default.rp_filter = 0
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net.ipv4.conf.default.arp_announce = 2
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net.ipv4.conf.lo.arp_announce = 2
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net.ipv4.conf.all.arp_announce = 2
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# see details in https://help.aliyun.com/knowledge_detail/41334.html
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net.ipv4.tcp_max_tw_buckets = 5000
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net.ipv4.tcp_syncookies = 1
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net.ipv4.tcp_max_syn_backlog = 1024
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net.ipv4.tcp_synack_retries = 2
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net.ipv6.conf.all.disable_ipv6 = 1
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net.ipv6.conf.default.disable_ipv6 = 1
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net.ipv6.conf.lo.disable_ipv6 = 1
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kernel.sysrq = 1
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net.ipv4.tcp_window_scaling=0
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net.ipv4.ip_default_ttl=128
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net.ipv4.tcp_timestamps=0
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net.ipv4.tcp_window_scaling=0
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net.ipv4.ip_default_ttl=128
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net.ipv4.tcp_timestamps=0
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net.core.rmem_default = 31457280
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net.core.wmem_default = 31457280
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net.core.rmem_max = 67108864
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net.core.wmem_max = 67108864
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net.ipv4.tcp_rmem = 4096 87380 67108864
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net.ipv4.tcp_wmem = 4096 87380 67108864
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net.core.default_qdisc = fq
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net.ipv4.tcp_congestion_control = bbr
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net.core.somaxconn=65535
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net.ipv4.tcp_max_syn_backlog=65535
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fs.file-max=100000
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EOF
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sudo sysctl -p
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rm -rf /var/log/boot.log-*
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rm -rf /var/log/btmp-*
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rm -rf /var/log/cron-*
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rm -rf /var/log/dnf.librepo.log-*
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rm -rf /var/log/hawkey.log-*
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rm -rf /var/log/dnf.log.*
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rm -rf /var/log/maillog-*
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rm -rf /var/log/secure-*
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rm -rf /var/log/spooler-*
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rm -rf /var/log/wtmp-*
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rm -rf /var/log/messages-*
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sudo truncate -s 0 /var/log/syslog
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sudo truncate -s 0 /var/log/auth.log
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sudo truncate -s 0 /var/log/kern.log
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sudo truncate -s 0 /var/log/boot.log
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sudo truncate -s 0 /var/log/messages
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sudo truncate -s 0 /var/log/v2ray/access.log
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sudo journalctl --vacuum-size=50M
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free -l
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sudo sync; echo 3 > /proc/sys/vm/drop_caches
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free -l
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netstat -tunap
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killall sendmail
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sudo ethtool -K eth0 tso on
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ifconfig eth0 mtu 1484
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