Ability of slave to announce arbitrary ip/port to master.

This feature is useful, especially in deployments using Sentinel in
order to setup Redis HA, where the slave is executed with NAT or port
fo

Ability of slave to announce arbitrary ip/port to master.

This feature is useful, especially in deployments using Sentinel in
order to setup Redis HA, where the slave is executed with NAT or port
forwarding, so that the auto-detected port/ip addresses, as listed in
the "INFO replication" output of the master, or as provided by the
"ROLE" command, don't match the real addresses at which the slave is
reachable for connections.

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Enable tcp-keepalive by default.

fix pidfile in redis.conf

New security feature: Redis protected mode.

An exposed Redis instance on the internet can be cause of serious
issues. Since Redis, by default, binds to all the interfaces, it is easy
to forget an in

New security feature: Redis protected mode.

An exposed Redis instance on the internet can be cause of serious
issues. Since Redis, by default, binds to all the interfaces, it is easy
to forget an instance without any protection layer, for error.

Protected mode try to address this feature in a soft way, providing a
layer of protection, but giving clues to Redis users about why the
server is not accepting connections.

When protected mode is enabeld (the default), and if there are no
minumum hints about the fact the server is properly configured (no
"bind" directive is used in order to restrict the server to certain
interfaces, nor a password is set), clients connecting from external
intefaces are refused with an error explaining what to do in order to
fix the issue.

Clients connecting from the IPv4 and IPv6 lookback interfaces are still
accepted normally, similarly Unix domain socket connections are not
restricted in any way.

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Fix typo UNCOMMENT -> COMMENT in example redis.conf.

Redis.conf example: make clear user must pass its path as argument.

Example redis.conf doc about pidfile fixed.

An user changed the behavior via a PR without upgrading the doc.

Added reference to IANA ticket for port 6379

Just so it's extra official :smile:

Give obvious instructions on how to bind all interfaces.

Example redis.conf binds just to 127.0.0.1.

It's hard to pick a good approach here. A few arguments:

1) There are many exposed instances on the internet.
2) Changing the default when "bind" is not

Example redis.conf binds just to 127.0.0.1.

It's hard to pick a good approach here. A few arguments:

1) There are many exposed instances on the internet.
2) Changing the default when "bind" is not given is very dangerous,
after an upgrade the server changes a fundamental behavior.
3) Usually Redis, when used in a proper way, will be protected *and*
accessed often from other computers, so this new default is likely
not what most people want.
4) However if users end with this default, they are using the example
redis.conf: likely they are reading what is inside, and they'll see
the warning.

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Unify to uppercase the headline

Supervise redis processes only if configured

Adds configuration option 'supervised [no | upstart | systemd | auto]'

Also removed 'bzero' from the previous implementation because it's 2015.
(We coul

Supervise redis processes only if configured

Adds configuration option 'supervised [no | upstart | systemd | auto]'

Also removed 'bzero' from the previous implementation because it's 2015.
(We could actually statically initialize those structs, but clang
throws an invalid warning when we try, so it looks bad even though it
isn't bad.)

Fixes #2264

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Advertise Redis Cluster as experimental in redis.conf.

Config: Add quicklist, remove old list options

This removes:
- list-max-ziplist-entries
- list-max-ziplist-value

This adds:
- list-max-ziplist-size
- list-compress-depth

Also updates confi

Config: Add quicklist, remove old list options

This removes:
- list-max-ziplist-entries
- list-max-ziplist-value

This adds:
- list-max-ziplist-size
- list-compress-depth

Also updates config file with new sections and updates
tests to use quicklist settings instead of old list settings.

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Mark diskless replication as experimental in redis.conf.

Typo fixes in redis.conf

Fix two typos in redis.conf:

- "trnasfers" --> "transfers"
- "enalbed" --> "enabled"

Document repl-diskless-sync-delay in redis.conf.

Diskless replication documented inside example redis.conf.

redis.conf small grammar fix

:smile:

Closes #2034

Clean up text throughout project

- Remove trailing newlines from redis.conf
- Fix comment misspelling
- Clarifies zipEncodeLength usage and a C API mention (#1243, #1242)
- Fix cluster typos

Clean up text throughout project

- Remove trailing newlines from redis.conf
- Fix comment misspelling
- Clarifies zipEncodeLength usage and a C API mention (#1243, #1242)
- Fix cluster typos (inspired by @papanikge #1507)
- Fix rewite -> rewrite in a few places (inspired by #682)

Closes #1243, #1242, #1507

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Grammar and typo fixes in redis.conf

Closes #1441

Fix typo in redis.conf

Closes #1713

Improve disable save comment in redis.conf

Closes #1897

Cluster: new option to work with partial slots coverage.

Make aof-load-truncated option actually configurable.