|
 |
d7fdbd |
From 3d02ef3be17f37baf729e786a8f36af4982f70ad Mon Sep 17 00:00:00 2001
|
|
|
d7fdbd |
From: Martin Sehnoutka <msehnout@redhat.com>
|
|
|
d7fdbd |
Date: Thu, 17 Nov 2016 10:52:16 +0100
|
|
|
d7fdbd |
Subject: [PATCH 23/59] Add documentation for isolate_* options. Correct
|
|
|
d7fdbd |
default
|
|
|
d7fdbd |
|
|
|
d7fdbd |
values of max_clients, max_per_ip.
|
|
|
d7fdbd |
---
|
|
|
d7fdbd |
vsftpd.conf.5 | 22 +++++++++++++++++++---
|
|
|
d7fdbd |
1 file changed, 19 insertions(+), 3 deletions(-)
|
|
|
d7fdbd |
|
|
|
d7fdbd |
diff --git a/vsftpd.conf.5 b/vsftpd.conf.5
|
|
|
d7fdbd |
index e242873..31d317f 100644
|
|
|
d7fdbd |
--- a/vsftpd.conf.5
|
|
|
d7fdbd |
+++ b/vsftpd.conf.5
|
|
|
d7fdbd |
@@ -652,6 +652,21 @@ change it with the setting
|
|
|
d7fdbd |
.BR xferlog_file .
|
|
|
d7fdbd |
|
|
|
d7fdbd |
Default: NO
|
|
|
d7fdbd |
+.TP
|
|
|
d7fdbd |
+.B isolate_network
|
|
|
d7fdbd |
+If enabled, use CLONE_NEWNET to isolate the untrusted processes so that
|
|
|
d7fdbd |
+they can't do arbitrary connect() and instead have to ask the privileged
|
|
|
d7fdbd |
+process for sockets (
|
|
|
d7fdbd |
+.BR port_promiscuous
|
|
|
d7fdbd |
+have to be disabled).
|
|
|
d7fdbd |
+
|
|
|
d7fdbd |
+Default: YES
|
|
|
d7fdbd |
+.TP
|
|
|
d7fdbd |
+.B isolate
|
|
|
d7fdbd |
+If enabled, use CLONE_NEWPID and CLONE_NEWIPC to isolate processes to their
|
|
|
d7fdbd |
+ipc and pid namespaces. So separated processes can not interact with each other.
|
|
|
d7fdbd |
+
|
|
|
d7fdbd |
+Default: YES
|
|
|
d7fdbd |
|
|
|
d7fdbd |
.SH NUMERIC OPTIONS
|
|
|
d7fdbd |
Below is a list of numeric options. A numeric option must be set to a non
|
|
|
d7fdbd |
@@ -749,8 +764,9 @@ Default: 077
|
|
|
d7fdbd |
.B max_clients
|
|
|
d7fdbd |
If vsftpd is in standalone mode, this is the maximum number of clients which
|
|
|
d7fdbd |
may be connected. Any additional clients connecting will get an error message.
|
|
|
d7fdbd |
+The value 0 switches off the limit.
|
|
|
d7fdbd |
|
|
|
d7fdbd |
-Default: 0 (unlimited)
|
|
|
d7fdbd |
+Default: 2000
|
|
|
d7fdbd |
.TP
|
|
|
d7fdbd |
.B max_login_fails
|
|
|
d7fdbd |
After this many login failures, the session is killed.
|
|
|
d7fdbd |
@@ -760,9 +776,9 @@ Default: 3
|
|
|
d7fdbd |
.B max_per_ip
|
|
|
d7fdbd |
If vsftpd is in standalone mode, this is the maximum number of clients which
|
|
|
d7fdbd |
may be connected from the same source internet address. A client will get an
|
|
|
d7fdbd |
-error message if they go over this limit.
|
|
|
d7fdbd |
+error message if they go over this limit. The value 0 switches off the limit.
|
|
|
d7fdbd |
|
|
|
d7fdbd |
-Default: 0 (unlimited)
|
|
|
d7fdbd |
+Default: 50
|
|
|
d7fdbd |
.TP
|
|
|
d7fdbd |
.B pasv_max_port
|
|
|
d7fdbd |
The maximum port to allocate for PASV style data connections. Can be used to
|
|
|
d7fdbd |
--
|
|
|
d7fdbd |
2.14.4
|
|
|
d7fdbd |
|