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From 3d02ef3be17f37baf729e786a8f36af4982f70ad Mon Sep 17 00:00:00 2001
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From: Martin Sehnoutka <msehnout@redhat.com>
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Date: Thu, 17 Nov 2016 10:52:16 +0100
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Subject: [PATCH 23/59] Add documentation for isolate_* options. Correct
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default
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values of max_clients, max_per_ip.
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---
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vsftpd.conf.5 | 22 +++++++++++++++++++---
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1 file changed, 19 insertions(+), 3 deletions(-)
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diff --git a/vsftpd.conf.5 b/vsftpd.conf.5
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index e242873..31d317f 100644
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--- a/vsftpd.conf.5
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+++ b/vsftpd.conf.5
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@@ -652,6 +652,21 @@ change it with the setting
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.BR xferlog_file .
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Default: NO
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+.TP
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+.B isolate_network
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+If enabled, use CLONE_NEWNET to isolate the untrusted processes so that
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+they can't do arbitrary connect() and instead have to ask the privileged
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+process for sockets (
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+.BR port_promiscuous
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+have to be disabled).
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+
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+Default: YES
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+.TP
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+.B isolate
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+If enabled, use CLONE_NEWPID and CLONE_NEWIPC to isolate processes to their
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+ipc and pid namespaces. So separated processes can not interact with each other.
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+
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+Default: YES
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.SH NUMERIC OPTIONS
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Below is a list of numeric options. A numeric option must be set to a non
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@@ -749,8 +764,9 @@ Default: 077
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.B max_clients
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If vsftpd is in standalone mode, this is the maximum number of clients which
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may be connected. Any additional clients connecting will get an error message.
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+The value 0 switches off the limit.
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-Default: 0 (unlimited)
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+Default: 2000
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.TP
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.B max_login_fails
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After this many login failures, the session is killed.
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@@ -760,9 +776,9 @@ Default: 3
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.B max_per_ip
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If vsftpd is in standalone mode, this is the maximum number of clients which
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may be connected from the same source internet address. A client will get an
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-error message if they go over this limit.
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+error message if they go over this limit. The value 0 switches off the limit.
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-Default: 0 (unlimited)
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+Default: 50
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.TP
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.B pasv_max_port
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The maximum port to allocate for PASV style data connections. Can be used to
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--
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2.14.4
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