.TH "EFS" "8"
.SH "NAME"
\fBmount\&.efs\fR \- Mount helper for using Amazon EFS file systems\&.
.SH "SYNOPSIS"
.sp
\fBmount\&.efs\fR \fIfile\-system\-id\fR \fImount-point\fR [\fB\-o\fR \fIoptions\fR]
.SH "DESCRIPTION"
.sp
\fBmount\&.efs\fR is part of the \fBamazon\-efs\-utils\fR \
package, which simplifies using EFS file systems\&.
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\fBmount\&.efs\fR is meant to be used through the \
\fBmount\fR(8) command for mounting EFS file systems\&.
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\fIfile\-system\-id\fR is an EFS file system ID in the \
form of "fs\-abcd1234", generated when the file system \
is created\&. \fImount-point\fR is the local directory \
on which the file system will be mounted\&.
.sp
\fBmount\&.efs\fR automatically applies the following NFS options:
.sp
.if n \{\
.RS 4
.\}
.nf
nfsvers=4\&.1
rsize=1048576
wsize=1048576
hard
timeo=600
retrans=2
noresvport
.fi
.if n \{\
.RE
.\}
.sp
By default, when using the Amazon EFS mount helper with Transport \
Layer Security (TLS), the mount helper enforces the use of Online \
Certificate Status Protocol (OCSP) and certificate hostname checking\&. \
These options can be configured in the config file located at \
\fI/etc/amazon/efs/efs\-utils\&.conf\&\fR.
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Additionally, the Amazon EFS mount helper has built\-in logging for \
troubleshooting purposes\&. These logs are located at \fI/var/log/amazon/efs\fR\&.
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It is possible to configure your Amazon EC2 instance to automatically \
remount your Amazon EFS file system when it reboots. For more information, \
see the online documentation at: \
\fIhttps://docs\&.aws\&.amazon\&.com/efs/latest/ug/mount\-fs\-auto\-mount\-onreboot\&.html\fR\&.
.SH "OPTIONS"
.sp
\fB\-o\fR, Options are specified with a \fB\-o\fR flag followed by a \
comma separated string of options\&. All of the options specified in \
\fBnfs(5)\fR are available, in addition to the following EFS-specific \
options:
.if n \{\
.RS 4
.\}
.TP
\fBtls\fR
Mounts the EFS file system over TLS\&.
.TP
\fBtlsport=\fR\fIn\fR
Configure the TLS relay to listen on the specified port\&.
.TP
\fBverify=\fR\fIn\fR
Verify TLS certificates using the specified stunnel verify level\&. For \
more information, see \fBstunnel(8)\fR\&.
.if n \{\
.RE
.\}
.SH "EXAMPLES"
.TP
sudo mount -t efs fs-abcd1234 /mnt/efs
Mount an EFS file system with file system ID "fs-abcd1234" at mount point \
"/mnt/efs" without encryption of data in transit\&.
.TP
sudo mount -t efs fs-abcd1234:/child /mnt/efs
Mount a non-root directory of an EFS file system with file system ID \
"fs-abcd1234" at mount point "/mnt/efs" without encryption of data in transit\&.
.TP
sudo mount -t efs -o tls fs-abcd1234 /mnt/efs
Mount an EFS file system with file system ID "fs-abcd1234" at mount point \
"/mnt/efs" using encryption of data in transit\&.
.TP
sudo mount -t efs -o tls,verify=0 fs-abcd1234 /mnt/efs
Mount an EFS file system with file system ID "fs-abcd1234" at mount point \
"/mnt/efs" using encryption of data in transit and a verify level of 0\&.
.SH "FILES"
.TP
\fI/sbin/mount.efs\fR
The executable for the Amazon EFS mount helper\&.
.TP
\fI/usr/bin/amazon-efs-mount-watchdog\fR
The executable for the supervisor process that monitors the network relay\&.
.TP
\fI/etc/amazon/efs/efs-utils.conf\fR
The configuration file for the Amazon EFS mount helper\&.
.TP
\fI/etc/amazon/efs/efs-utils.crt\fR
The default Certificate Authority file used by the Amazon EFS mount helper\&.
.TP
\fI/etc/init/amazon-efs-mount-watchdog.conf\fR
The configuration file for the supervisor process\&.
.TP
\fI/var/log/amazon/efs/\fR
The directory where logs for the Amazon EFS mount helper, the stunnel network \
relay, and the supervisor process are stored\&.
.TP
\fI/usr/share/man/man8/mount.efs.8\fR
The man page for the Amazon EFS mount helper\&.
.SH "NOTES"
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For more information on using the \fBamazon\-efs\-utils\fR package, see \
\fIhttps://docs\&.aws\&.amazon\&.com/efs/latest/ug/using\-amazon\-efs\-utils\&.html\fR \
in the Amazon EFS User Guide\&.
.SH "SEE ALSO"
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\fBnfs(8)\fR, \fBstunnel(8)\fR, \fBfstab(5)\fR
.SH "COPYING"
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Copyright 2017\-2018 Amazon\&.com, Inc\&. and its affiliates\&. All Rights Reserved\&.