BSD - Ferro's Gitbook

​TCP congestion control​
​relayd​
​PF​
​ipfw​
​ZFS​
​DTrace​
​CAM Target Layer(ctl)​
​HA cluster​
TCP congestion control
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sysctl net.inet.tcp.cc
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net.inet.tcp.cc.available: newreno
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net.inet.tcp.cc.algorithm: newreno
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​
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kldload cccubic
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kldload ccvegas
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kldload cccdg
Copied!
relayd
​https://man.openbsd.org/relayd.conf.5 layer 3 and/or layer 7 load-balancer, application layer gateway, or transparent proxy
PF
​https://man.openbsd.org/pf.conf​
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pass in all 
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pass in from any to any 
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pass in proto tcp from any port < 1024 to any 
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pass in proto tcp from any to any port 25 
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pass in proto tcp from 10.0.0.0/8 port >= 1024 \ 
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    to ! 10.1.2.3 port != ssh 
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pass in proto tcp from any os "OpenBSD" 
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pass in proto tcp from route "DTAG" 
Copied!
ipfw
1
sudo ipfw add fwd 127.0.0.1,12345 tcp from not me to any 80 in via en1
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sudo ipfw add fwd 127.0.0.1,12345 tcp from not me to any 443 in via en1
Copied!
ZFS
​https://www.freebsd.org/cgi/man.cgi?query=zpool​
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zpool create pool_name da0p3 da1p3
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zpool create pool_name \
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    mirror da0    da1 \
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    mirror da2 da3 \
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    log mirror da4 da5
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zpool add pool cache    da2 da3
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​
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zpool list
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zpool get all pool_name
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zpool status pool_name
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zpool iostat -v pool_name 5
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zpool list -v pool_name
Copied!
DTrace
​https://wiki.freebsd.org/DTrace/Tutorial​
CAM Target Layer(ctl)
The ctl subsystem provides SCSI target devices emulation
HA cluster
​https://bsdmag.org/nearly-online-zpool-switching-two-freebsd-machines/​

Storage(SW)

Mac

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Contents

TCP congestion control

CAM Target Layer(ctl)

HA cluster