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set PMTU starting value to 1024 according to RFC4821

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K4YT3X 2021-10-15 15:50:23 +00:00
parent 19916769ae
commit 713183509d
1 changed files with 2 additions and 1 deletions
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sysctl.conf
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@ -3,7 +3,7 @@
# Contributor: IceCodeNew # Contributor: IceCodeNew
# Contributor: HorlogeSkynet # Contributor: HorlogeSkynet
# Date Created: October 5, 2020 # Date Created: October 5, 2020
# Last Updated: October 12, 2021 # Last Updated: October 15, 2021
# Licensed under the GNU General Public License Version 3 (GNU GPL v3), # Licensed under the GNU General Public License Version 3 (GNU GPL v3),
# available at: https://www.gnu.org/licenses/gpl-3.0.txt # available at: https://www.gnu.org/licenses/gpl-3.0.txt
@ -232,6 +232,7 @@ net.ipv4.tcp_slow_start_after_idle = 0
# enabling MTU probing helps mitigating PMTU blackhole issues # enabling MTU probing helps mitigating PMTU blackhole issues
# this may not be desirable on congested networks # this may not be desirable on congested networks
net.ipv4.tcp_mtu_probing = 1 net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_base_mss = 1024
# increase memory thresholds to prevent packet dropping # increase memory thresholds to prevent packet dropping
net.ipv4.tcp_rmem = 4096 87380 8388608 net.ipv4.tcp_rmem = 4096 87380 8388608