Installing Open VPN On CentOS

Nov 11, 2008

I followed a combination of this tutorial:[URL]and this tutorial [URL] (I had to use a combination since following each individually brought up errors along the way).

Anyhow, installing OpenVPN was a breeze but I think I am getting hung up on the configuration part. Basically after generating all of the certificate files and stuff, when i try to "service openvpn start" i just get the message "FAILED".

Where do I look to see what the reason for the failed start could be?

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Installing CentOS

Jul 9, 2008

I'm testing out the old version of CentOS which is CentOS 2.1 on Virtual PC and I'm running into some problems. After installation of CentOS, it asks me to reboot the system so then I reboot it. Then it prompts me for the login and password.

I type in "root" and my password. Then I'm stuck inside this command prompt that says:

[root@localhost root]#

Now, how exactly do I get into CentOS graphical user interface, or is this it?

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Installing VNC On CentOS 4.5

Aug 12, 2007

Ive gotten all of it to work.. but instead of using SSH (caus I really dont understand it) Am I able to install VNC? And just connect + use the desktop like that?

my question is pretty much can I install VNC on CentOS 4.5 using SSH?

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Installing ImageMagick On CentOS

Aug 20, 2007

I'm trying to install imagemagick on centos using yum... I did the yum update, then tried 'yum install ImageMagick', but that didn't work - "Nothing to do". I also tried the i386 RPM, which also did not work, I'm missing a bunch of dependencies, has anyone installed this on CentOS know of a specific rpm or another way to install? Ideally, without installing through source.

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Installing CentOS 5.2 On New Server

Jul 4, 2008

I decided to go with Cent OS after reading about it in the forums here, but I've had nothing but problems trying to install it. I first tried to do a net install but the installation took nearly an entire day because it would keep popping up messages about corrupt files when downloading the package files. Eventually it just gave up or rebooted because I came in in the morning to find it at a message saying "No OS installed". I then burned all 7 installation disks and tried that way, still got a few of the corrupt file messages (but far fewer than the previous time) and made it through the installation only to still have it say "no os installed" again after the reboot. I thought maybe it had something to do with the fact that I was not installing a boot loader (there is no other OS installed anyways) but when I tried to reinstall a third time, this time with the boot loader, it now says that the CD drive (USB) is already mounted on tty2 and I can't even start the installation? WTH!

The server is a Dell PowerEdge R300 with two Intel Core 2 Duo 64-bit processors. I'm using the x86_64 ISOs from the mirrors.

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Installing Xen On CentOS With SATA

Feb 16, 2008

I've got a 'virgin' machine from Nocster running CentOS 5, including a SATA drive (shows up as "SCSI").

It looks like it'll be a straight-forward install [url], but I wondered if anyone has had this exact combination before and if there are any problems I should expect? Given that it's a dedicated machine I don't have physical access to, I'm slightly paranoid about screwing up.

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Installing CentOS Manually

Jul 8, 2008

how to install CentOS by not using the installer. This guide should be great when installing over networks, don't have a graphical console available (for installing over serial), when you're not content with the installer's job, installing CentOS from another distro, or plainly want to learn more about how CentOS works.

* Have a host OS that has the "rpm" package manager available. Some distributions have it in their repositories (even if the package manager for the distro itself is not rpm), and knoppix (a linux live/rescue CD) has it aboard too. You can use the first CentOS ISO CD too (use linux rescue at boot), and it has all the necessairy packages aboard
* Access to the CentOS base repository. It's on the first CentOS ISO CD
* Use your BRAIN. This guide is ment to be interpreted, not copy/pasted

# First, setup your disks to your liking. You can use whatever you want here,
# RAID, LVM, etc... Remember your disk configuration because you'll need it
# to configure grub, menu.lst and fstab. Using RAID, LVM, or others will require
# more configuration than this guide covers. To keep it simple I'm using a
# single disk. An example:

$ fdisk /dev/sda
$ mount /dev/sda3 /target
$ mkdir /target/boot
$ mount /dev/sda1 /target/boot

# Depending on the host OS you're using, you may need to initialize the rpm db
# on the host OS
$ rpm --initdb

# Use the following command to install the packages. I'll be addressing this
# command as $rpm.

$ rpm --root /target -i

# Use your shell's tab completion to complete the package filenames. I
# deliberatly left out the versions so these instructions apply to a wide range
# of versions

# Let's install some basics
$rpm setup basesystem filesystem

# Install bash first, this is needed for post-install scripts
$rpm bash glibc glibc-common termcap libgcc tzdata mktemp libtermcap

# Install some dependencies (this is mainly to keep the next command smaller)
$rpm grep pcre libstdc++ info ncurses zlib gawk sed ethtool

# Install the bulk of the system
$rpm coreutils libselinux libacl libattr pam audit-libs cracklib-dicts
cracklib libsepol mcstrans libcap chkconfig python db4 openssl readline
bzip2-libs gdbm findutils krb5-libs initscripts util-linux popt udev MAKEDEV
centos-release shadow-utils keyutils-libs iproute sysfsutils SysVinit
net-tools module-init-tools e2fsprogs e2fsprogs-libs glib2 mingetty
device-mapper sysklogd psmisc centos-release-notes procps libsysfs iputils

# Install package manager
$rpm rpm beecrypt elfutils-libelf rpm-libs sqlite

# Install YUM
$rpm yum python-elementtree rpm-python yum-metadata-parser python-sqlite
expat libxml2 python-urlgrabber m2crypto python-iniparse

# You may also want to install your favorite editor
$rpm nano

# This provides /root with some defaults, like color highlighting on `ls`
$rpm rootfiles

# Right now you have system which you can chroot to, so we can start setting up
# the basics

# Mount directories for chroot operation
$ mount --bind /dev /target/dev
$ mount -t proc none /target/proc
$ mount -t sysfs none /target/sysfs
$ chroot /target

# This constructs /etc/shadow
$ pwconv

# Configure fstab
$ nano -w /etc/fstab

# Installing the kernel. Do this back outside the chroot in the host OS system
$ exit
$rpm kernel mkinitrd cpio device-mapper-multipath dmraid gzip kpartx lvm2 nash
tar less device-mapper-event

# Install the bootloader, grub.
$rpm grub diffutils redhat-logos

# Let's chroot again to configure our bootloader
$ chroot /target

# We start by configuring the bootloader. Open /boot/grub/menu.lst, and put the
# following there

timeout 5
default 0

# (0) CentOS
title CentOS
root (hd0,0)
kernel /vmlinuz-2.6.18-92.el5 root=/dev/sda3 ro
initrd /initrd-2.6.18-92.el5.img

# If this command gives an error, you can safely ignore this because it's not
# of importance. What is important is that grub-install copied the right files
# to /boot/grub that we need for booting.
$ /sbin/grub-install /dev/sda

# Manually install grub if the previous step failed. - means type it in the grub
# shell
$ grub
$- root (hd0,0)
$- setup (hd0)

# Optional packages
# You may want to install passwd so you can set passwords ;-)
$rpm passwd libuser openldap cyrus-sasl-lib

# These are used to set the keyboard language (loadkeys)
$rpm kbd usermode

# ** Right now you should have a bootable system! Here are some tips to help you
# through your 1st boot ***

# Most of the system configuration happens in /etc/sysconfig. See


for full documentation.

Some quick post-install tips:
* Configure your keyboard in
using the KEYTABLE variable

* Configure networking
Take a look at /etc/sysconfig/network-scripts. See ifcfg-lo for an example.

# This recreates the RPM database. If the host OS you used has a different
# version of db, rpm will complain with
# rpmdb: unable to lock mutex: Invalid argument
$ rpmdb --rebuilddb

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Installing CentOS 4.4 From A Floppy

Apr 27, 2007

Apparently on of my colo customers sent the server without the OS or CD drive, and wants us to install CentOS 4.4 64 bit.

Any way to get "download" version of it, put it on a floppy, put it in the server and let the server download the rest from the internet (after we enter the IP info, so it can connect)?

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Installing HyperVM On CentOS- W/ YUM

Nov 4, 2007

I'm trying to install HyperVM like the following:

[root@server ~]# sh ./ --virtualization-type=openvz
Here is the output it's returning to me (From log file)

Installing packages which lxlighttpd zip unzip lxphp lxzend curl mysql mysql-server mysqlclient10...
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
Excluding Packages in global exclude list
Parsing package install arguments
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package lxphp.i386 0:5.2.1-90 set to be updated
---> Package lxzend.i386 0:3.3-lxa set to be updated
---> Package lxlighttpd.i386 0:1.4.13-1 set to be updated
--> Running transaction check
--> Processing Dependency: for package: lxphp
--> Processing Dependency: for package: lxphp
--> Finished Dependency Resolution
Up2date Gave Error... Trying Again...

This continues to loop

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Installing Yum On CentOS + Plesk (Virtuozzo) VPS

Jul 21, 2008

I found this tutorial on how to install yum. The only issue is, we have CentOS 5. Is there a more recent article with the latest files needed to install yum on CentOS5 / Plesk VPS?


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CentOS 5 - Problem Installing OpenVZ Kernel

Jun 22, 2008

Just to make things clear, i am not new at setting up VPS nodes, i have set up all of my servers with the HyperVM/OpenVZ setup and they work perfectly, but im having a problem with a new server.

Just received my new server, installed HyperVM-Slave, rebooted but the OpenVZ kernel was not installed for some reason, so i manually installed the OpenVZ Kernel using the RPM as yum seemed to install the wrong kernel.

I then installed the kernel using RPM and got this error at the end of installation:

grubby: unable to open /dev/hda: No such file or directory
grubby: unable to open /boot/boot.b: No such file or directory
grubby fatal error: unable to find a suitable template

I have never encountered this error with any of my other servers before...

Also after installation everything seems to be correct. /etc/grub.conf has the new OpenVZ kernel displayed, and default is set to 0, so upon startup it should be booting the correct kernel, but the thing is, when i reboot the machine the default kernel is loaded even though the grub.conf is configured to load the OpenVZ Kernel.

Im thinking that this may be due to the error i got when installing the kernel.

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Installing GPAC On Cpanel Based Centos

Apr 28, 2009

Anybody have successfully installed GPAC in Centos system?

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Plesk 12.x / Linux :: Installing Magento (Centos 7)

Oct 11, 2014

I am trying to install a magento on Plesk Version 12.0.18 Update #19 / CentOS Linux 7.0.1406 (Core).

Plesk is reporting that it cant install magento because php-mcrypt is missing. So I tried the following:


1) rpm -ivh [URL] ....
2) yum update
3) yum install php-mcrypt

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base:
* epel:
* extras:
* updates:

[Code] ......

What can i do to install mcrypt without breaking other dependencies ?

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Plesk 12.x / Linux :: Installing Mcrypt On Linux Centos 5.5 PHP 5.3.3

Jun 20, 2014

I am trying to install Magento on my apache server. I am running into the dreaded mcrypt issue as Magento needs it to run. I have now been googling for the past few hours and have gotten nowhere.

Here are my details:

Centos 5.5
PHP 5.3.3
Plesk 12

I have tried installing all sorts of different repos and it just isn't working.

When I try to install using # yum install php-mcrypt I get the following:

Loaded plugins: fastestmirror
Package php-mysql is obsoleted by php-mysqlnd, trying to install php-mysqlnd-5.5.13-3.el5.remi.x86_64 instead
--> Processing Dependency: php53-gd for package: psa-php53-configurator
--> Processing Dependency: php53-imap for package: psa-php53-configurator


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Difference Between CentOs 5.0 And Centos 4.5? Both With Plesk

Oct 1, 2007

What is the difference between CentOs 5.0 and Centos 4.5? (Both contains Plesk)

Would CentOS 5 contain more updates and fixes? CentOS 4.5 be more stable?

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Open SSL

Oct 4, 2007

Is there a way to exploit openssl? someone came to me asking me for a job on and i said no. They then uploaded a remote view script to exploit perl and gain access. I patched that. Then he again said that he can exploit through openssl. I thaught open ssl was security itself? He then told me that he can gain access through php sites to root? Is that possible? We have phpsafemode set to off because we run whmcs and it requires it to be off. He said he can hack us through that aswell. Is this guy just bluffing or can this seriously be done? Like i said this is why i have 2 server admins...

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Open Relay

Mar 8, 2007

Somehow I've opened up my postfix server to act as an open relay and it's already being taken advantage of. The following is my postconf

2bounce_notice_recipient = postmaster
access_map_reject_code = 554
address_verify_default_transport = $default_transport
address_verify_local_transport = $local_transport
address_verify_map =
address_verify_negative_cache = yes
address_verify_negative_expire_time = 3d
address_verify_negative_refresh_time = 3h
address_verify_poll_count = 3
address_verify_poll_delay = 3s
address_verify_positive_expire_time = 31d
address_verify_positive_refresh_time = 7d
address_verify_relay_transport = $relay_transport
address_verify_relayhost = $relayhost
address_verify_sender = postmaster
address_verify_sender_dependent_relayhost_maps = $sender_dependent_relayhost_maps
address_verify_service_name = verify
address_verify_transport_maps = $transport_maps
address_verify_virtual_transport = $virtual_transport
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
allow_mail_to_commands = alias, forward
allow_mail_to_files = alias, forward
allow_min_user = no
allow_percent_hack = yes
allow_untrusted_routing = no
alternate_config_directories =
always_bcc =
anvil_rate_time_unit = 60s
anvil_status_update_time = 600s
append_at_myorigin = yes
append_dot_mydomain = yes
application_event_drain_time = 100s
authorized_flush_users = static:anyone
authorized_mailq_users = static:anyone
authorized_submit_users = static:anyone
backwards_bounce_logfile_compatibility = yes
berkeley_db_create_buffer_size = 16777216
berkeley_db_read_buffer_size = 131072
best_mx_transport =
biff = yes
body_checks =
body_checks_size_limit = 51200
bounce_notice_recipient = postmaster
bounce_queue_lifetime = 5d
bounce_service_name = bounce
bounce_size_limit = 50000
bounce_template_file =
broken_sasl_auth_clients = yes
canonical_classes = envelope_sender, envelope_recipient, header_sender, header_recipient
canonical_maps = hash:/etc/postfix/canonical
cleanup_service_name = cleanup
command_directory = /usr/sbin
command_execution_directory =
command_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
command_time_limit = 1000s
config_directory = /etc/postfix
connection_cache_protocol_timeout = 5s
connection_cache_service_name = scache
connection_cache_status_update_time = 600s
connection_cache_ttl_limit = 2s
content_filter =
daemon_directory = /usr/libexec/postfix
daemon_timeout = 18000s
debug_peer_level = 2
debug_peer_list =
default_database_type = hash
default_delivery_slot_cost = 5
default_delivery_slot_discount = 50
default_delivery_slot_loan = 3
default_destination_concurrency_limit = 20
default_destination_recipient_limit = 50
default_extra_recipient_limit = 1000
default_minimum_delivery_slots = 3
default_privs = nobody
default_process_limit = 100
default_rbl_reply = $rbl_code Service unavailable; $rbl_class [$rbl_what] blocked using $rbl_domain${rbl_reason?; $rbl_reason}
default_recipient_limit = 10000
default_transport = smtp
default_verp_delimiters = +=
defer_code = 450
defer_service_name = defer
defer_transports =
delay_logging_resolution_limit = 2
delay_notice_recipient = postmaster
delay_warning_time = 0h
deliver_lock_attempts = 20
deliver_lock_delay = 1s
disable_dns_lookups = no
disable_mime_input_processing = no
disable_mime_output_conversion = no
disable_verp_bounces = no
disable_vrfy_command = no
dont_remove = 0
double_bounce_sender = double-bounce
duplicate_filter_limit = 1000
empty_address_recipient = MAILER-DAEMON
enable_original_recipient = yes
error_notice_recipient = postmaster
error_service_name = error
execution_directory_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
expand_owner_alias = no
export_environment = TZ MAIL_CONFIG LANG
fallback_transport =
fallback_transport_maps =
fast_flush_domains = $relay_domains
fast_flush_purge_time = 7d
fast_flush_refresh_time = 12h
fault_injection_code = 0
flush_service_name = flush
fork_attempts = 5
fork_delay = 1s
forward_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
forward_path = $home/.forward${recipient_delimiter}${extension}, $home/.forward
frozen_delivered_to = yes
hash_queue_depth = 1
hash_queue_names = deferred, defer
header_address_token_limit = 10240
header_checks =
header_size_limit = 102400
helpful_warnings = yes
home_mailbox =
hopcount_limit = 50
html_directory = no
ignore_mx_lookup_error = no
in_flow_delay = 1s
inet_interfaces = all
inet_protocols = ipv4
initial_destination_concurrency = 5
internal_mail_filter_classes =
invalid_hostname_reject_code = 501
ipc_idle = 100s
ipc_timeout = 3600s
ipc_ttl = 1000s
line_length_limit = 2048
lmtp_bind_address =
lmtp_bind_address6 =
lmtp_cname_overrides_servername = no
lmtp_connect_timeout = 0s
lmtp_connection_cache_destinations =
lmtp_connection_cache_on_demand = yes
lmtp_connection_cache_time_limit = 2s
lmtp_connection_reuse_time_limit = 300s
lmtp_data_done_timeout = 600s
lmtp_data_init_timeout = 120s
lmtp_data_xfer_timeout = 180s
lmtp_defer_if_no_mx_address_found = no
lmtp_destination_concurrency_limit = $default_destination_concurrency_limit
lmtp_destination_recipient_limit = $default_destination_recipient_limit
lmtp_discard_lhlo_keyword_address_maps =
lmtp_discard_lhlo_keywords =
lmtp_enforce_tls = no
lmtp_generic_maps =
lmtp_host_lookup = dns
lmtp_lhlo_name = $myhostname
lmtp_lhlo_timeout = 300s
lmtp_line_length_limit = 990
lmtp_mail_timeout = 300s
lmtp_mx_address_limit = 5
lmtp_mx_session_limit = 2
lmtp_pix_workaround_delay_time = 10s
lmtp_pix_workaround_threshold_time = 500s
lmtp_quit_timeout = 300s
lmtp_quote_rfc821_envelope = yes
lmtp_randomize_addresses = yes
lmtp_rcpt_timeout = 300s
lmtp_rset_timeout = 20s
lmtp_sasl_auth_enable = no
lmtp_sasl_mechanism_filter =
lmtp_sasl_password_maps =
lmtp_sasl_path =
lmtp_sasl_security_options = noplaintext, noanonymous
lmtp_sasl_tls_security_options = $lmtp_sasl_security_options
lmtp_sasl_tls_verified_security_options = $lmtp_sasl_tls_security_options
lmtp_sasl_type = cyrus
lmtp_send_xforward_command = no
lmtp_sender_dependent_authentication = no
lmtp_skip_5xx_greeting = yes
lmtp_starttls_timeout = 300s
lmtp_tcp_port = 24
lmtp_tls_CAfile =
lmtp_tls_CApath =
lmtp_tls_cert_file =
lmtp_tls_dcert_file =
lmtp_tls_dkey_file = $lmtp_tls_dcert_file
lmtp_tls_enforce_peername = yes
lmtp_tls_exclude_ciphers =
lmtp_tls_key_file = $lmtp_tls_cert_file
lmtp_tls_loglevel = 0
lmtp_tls_mandatory_ciphers = medium
lmtp_tls_mandatory_exclude_ciphers =
lmtp_tls_mandatory_protocols = SSLv3, TLSv1
lmtp_tls_note_starttls_offer = no
lmtp_tls_per_site =
lmtp_tls_policy_maps =
lmtp_tls_scert_verifydepth = 5
lmtp_tls_secure_cert_match = nexthop
lmtp_tls_security_level =
lmtp_tls_session_cache_database =
lmtp_tls_session_cache_timeout = 3600s
lmtp_tls_verify_cert_match = hostname
lmtp_use_tls = no
lmtp_xforward_timeout = 300s
local_command_shell =
local_destination_concurrency_limit = 2
local_destination_recipient_limit = 1
local_header_rewrite_clients = permit_inet_interfaces
local_recipient_maps = proxy:unix:passwd.byname $alias_maps
local_transport = local:$myhostname
luser_relay =
mail_name = Postfix
mail_owner = postfix
mail_release_date = 200600825
mail_spool_directory = /var/mail
mail_version = 2.3.3
mailbox_command =
mailbox_command_maps =
mailbox_delivery_lock = fcntl, dotlock
mailbox_size_limit = 51200000
mailbox_transport =
mailbox_transport_maps =
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
maps_rbl_domains =
maps_rbl_reject_code = 554
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_domains =
masquerade_exceptions =
max_idle = 100s
max_use = 100
maximal_backoff_time = 4000s
maximal_queue_lifetime = 5d
message_reject_characters =
message_size_limit = 10240000
message_strip_characters =
milter_command_timeout = 30s
milter_connect_macros = j {daemon_name} v
milter_connect_timeout = 30s
milter_content_timeout = 300s
milter_data_macros = i
milter_default_action = tempfail
milter_end_of_data_macros = i
milter_helo_macros = {tls_version} {cipher} {cipher_bits} {cert_subject} {cert_issuer}
milter_macro_daemon_name = $myhostname
milter_macro_v = $mail_name $mail_version
milter_mail_macros = i {auth_type} {auth_authen} {auth_author} {mail_addr}
milter_protocol = 2
milter_rcpt_macros = i {rcpt_addr}
milter_unknown_command_macros =
mime_boundary_length_limit = 2048
mime_header_checks = $header_checks
mime_nesting_limit = 100
minimal_backoff_time = 1000s
multi_recipient_bounce_reject_code = 550
mydestination = localhost.$mydomain, localhost, $mydomain, $myhostname
mydomain =
myhostname =
mynetworks =
mynetworks_style = subnet
myorigin = $myhostname
nested_header_checks = $header_checks
newaliases_path = /usr/bin/newaliases.postfix
non_fqdn_reject_code = 504
non_smtpd_milters =
notify_classes = resource, software
owner_request_special = yes
parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains,smtpd_access_maps
permit_mx_backup_networks =
pickup_service_name = pickup
plaintext_reject_code = 450
prepend_delivered_header = command, file, forward
process_id_directory = pid
propagate_unmatched_extensions = canonical, virtual
proxy_interfaces =
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks
qmgr_clog_warn_time = 300s
qmgr_fudge_factor = 100
qmgr_message_active_limit = 20000
qmgr_message_recipient_limit = 20000
qmgr_message_recipient_minimum = 10
qmqpd_authorized_clients =
qmqpd_error_delay = 1s
qmqpd_timeout = 300s
queue_directory = /var/spool/postfix
queue_file_attribute_count_limit = 100
queue_minfree = 0
queue_run_delay = 1000s
queue_service_name = qmgr
rbl_reply_maps =
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
receive_override_options =
recipient_bcc_maps =
recipient_canonical_classes = envelope_recipient, header_recipient
recipient_canonical_maps =
recipient_delimiter =
reject_code = 554
relay_clientcerts =
relay_destination_concurrency_limit = $default_destination_concurrency_limit
relay_destination_recipient_limit = $default_destination_recipient_limit
relay_domains = $mydestination
relay_domains_reject_code = 554
relay_recipient_maps =
relay_transport = relay
relayhost =
relocated_maps =
remote_header_rewrite_domain =
require_home_directory = no
resolve_dequoted_address = yes
resolve_null_domain = no
resolve_numeric_domain = no
rewrite_service_name = rewrite
sample_directory = /usr/share/doc/postfix-2.3.3/samples
sender_bcc_maps =
sender_canonical_classes = envelope_sender, header_sender
sender_canonical_maps = hash:/etc/postfix/canonical
sender_dependent_relayhost_maps =
sendmail_path = /usr/sbin/sendmail.postfix
service_throttle_time = 60s
setgid_group = postdrop
show_user_unknown_table_name = yes
showq_service_name = showq
smtp_always_send_ehlo = yes
smtp_bind_address =
smtp_bind_address6 =
smtp_cname_overrides_servername = no
smtp_connect_timeout = 30s
smtp_connection_cache_destinations =
smtp_connection_cache_on_demand = yes
smtp_connection_cache_time_limit = 2s
smtp_connection_reuse_time_limit = 300s
smtp_data_done_timeout = 600s
smtp_data_init_timeout = 120s
smtp_data_xfer_timeout = 180s
smtp_defer_if_no_mx_address_found = no
smtp_destination_concurrency_limit = $default_destination_concurrency_limit
smtp_destination_recipient_limit = $default_destination_recipient_limit
smtp_discard_ehlo_keyword_address_maps =
smtp_discard_ehlo_keywords =
smtp_enforce_tls = no
smtp_fallback_relay = $fallback_relay
smtp_generic_maps =
smtp_helo_name = $myhostname
smtp_helo_timeout = 300s
smtp_host_lookup = dns
smtp_line_length_limit = 990
smtp_mail_timeout = 300s
smtp_mx_address_limit = 5
smtp_mx_session_limit = 2
smtp_never_send_ehlo = no
smtp_pix_workaround_delay_time = 10s
smtp_pix_workaround_threshold_time = 500s
smtp_quit_timeout = 300s
smtp_quote_rfc821_envelope = yes
smtp_randomize_addresses = yes
smtp_rcpt_timeout = 300s
smtp_rset_timeout = 20s
smtp_sasl_auth_enable = no
smtp_sasl_mechanism_filter =
smtp_sasl_password_maps =
smtp_sasl_path =
smtp_sasl_security_options = noplaintext, noanonymous
smtp_sasl_tls_security_options = $smtp_sasl_security_options
smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options
smtp_sasl_type = cyrus
smtp_send_xforward_command = no
smtp_sender_dependent_authentication = no
smtp_skip_5xx_greeting = yes
smtp_skip_quit_response = yes
smtp_starttls_timeout = 300s
smtp_tls_CAfile =
smtp_tls_CApath =
smtp_tls_cert_file =
smtp_tls_dcert_file =
smtp_tls_dkey_file = $smtp_tls_dcert_file
smtp_tls_enforce_peername = yes
smtp_tls_exclude_ciphers =
smtp_tls_key_file = $smtp_tls_cert_file
smtp_tls_loglevel = 0
smtp_tls_mandatory_ciphers = medium
smtp_tls_mandatory_exclude_ciphers =
smtp_tls_mandatory_protocols = SSLv3, TLSv1
smtp_tls_note_starttls_offer = no
smtp_tls_per_site =
smtp_tls_policy_maps =
smtp_tls_scert_verifydepth = 5
smtp_tls_secure_cert_match = nexthop, dot-nexthop
smtp_tls_security_level =
smtp_tls_session_cache_database =
smtp_tls_session_cache_timeout = 3600s
smtp_tls_verify_cert_match = hostname
smtp_use_tls = no
smtp_xforward_timeout = 300s
smtpd_authorized_verp_clients = $authorized_verp_clients
smtpd_authorized_xclient_hosts =
smtpd_authorized_xforward_hosts =
smtpd_banner = $myhostname ESMTP $mail_name
smtpd_client_connection_count_limit = 50
smtpd_client_connection_rate_limit = 0
smtpd_client_event_limit_exceptions = ${smtpd_client_connection_limit_exceptions:$mynetworks}
smtpd_client_message_rate_limit = 0
smtpd_client_new_tls_session_rate_limit = 0
smtpd_client_recipient_rate_limit = 0
smtpd_client_restrictions =
smtpd_data_restrictions =
smtpd_delay_open_until_valid_rcpt = yes
smtpd_delay_reject = yes
smtpd_discard_ehlo_keyword_address_maps =
smtpd_discard_ehlo_keywords =
smtpd_end_of_data_restrictions =
smtpd_enforce_tls = no
smtpd_error_sleep_time = 1s
smtpd_etrn_restrictions =
smtpd_expansion_filter = 40!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwxyz{|}~
smtpd_forbidden_commands = CONNECT GET POST
smtpd_hard_error_limit = 20
smtpd_helo_required = no
smtpd_helo_restrictions =
smtpd_history_flush_threshold = 100
smtpd_junk_command_limit = 100
smtpd_milters =
smtpd_noop_commands =
smtpd_null_access_lookup_key = <>
smtpd_peername_lookup = yes
smtpd_policy_service_max_idle = 300s
smtpd_policy_service_max_ttl = 1000s
smtpd_policy_service_timeout = 100s
smtpd_proxy_ehlo = $myhostname
smtpd_proxy_filter =
smtpd_proxy_timeout = 100s
smtpd_recipient_limit = 1000
smtpd_recipient_overshoot_limit = 1000
smtpd_recipient_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination
smtpd_reject_unlisted_recipient = yes
smtpd_reject_unlisted_sender = no
smtpd_restriction_classes =
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = no
smtpd_sasl_exceptions_networks =
smtpd_sasl_local_domain =
smtpd_sasl_path = smtpd
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
smtpd_sasl_type = cyrus
smtpd_sender_login_maps =
smtpd_sender_restrictions =
smtpd_soft_error_limit = 10
smtpd_starttls_timeout = 300s
smtpd_timeout = 300s
smtpd_tls_CAfile =
smtpd_tls_CApath =
smtpd_tls_always_issue_session_ids = yes
smtpd_tls_ask_ccert = no
smtpd_tls_auth_only = no
smtpd_tls_ccert_verifydepth = 5
smtpd_tls_cert_file =
smtpd_tls_dcert_file =
smtpd_tls_dh1024_param_file =
smtpd_tls_dh512_param_file =
smtpd_tls_dkey_file = $smtpd_tls_dcert_file
smtpd_tls_exclude_ciphers =
smtpd_tls_key_file = $smtpd_tls_cert_file
smtpd_tls_loglevel = 0
smtpd_tls_mandatory_ciphers = medium
smtpd_tls_mandatory_exclude_ciphers =
smtpd_tls_mandatory_protocols = SSLv3, TLSv1
smtpd_tls_received_header = no
smtpd_tls_req_ccert = no
smtpd_tls_security_level =
smtpd_tls_session_cache_database =
smtpd_tls_session_cache_timeout = 3600s
smtpd_tls_wrappermode = no
smtpd_use_tls = no
soft_bounce = no
stale_lock_time = 500s
strict_7bit_headers = no
strict_8bitmime = no
strict_8bitmime_body = no
strict_mime_encoding_domain = no
strict_rfc821_envelopes = no
sun_mailtool_compatibility = no
swap_bangpath = yes
syslog_facility = mail
syslog_name = postfix
tls_daemon_random_bytes = 32
tls_export_cipherlist = ALL:+RC4:@STRENGTH
tls_high_cipherlist = !EXPORT:!LOW:!MEDIUM:ALL:+RC4:@STRENGTH
tls_low_cipherlist = !EXPORT:ALL:+RC4:@STRENGTH
tls_medium_cipherlist = !EXPORT:!LOW:ALL:+RC4:@STRENGTH
tls_null_cipherlist = !aNULL:eNULL+kRSA
tls_random_bytes = 32
tls_random_exchange_name = ${config_directory}/prng_exch
tls_random_prng_update_period = 3600s
tls_random_reseed_period = 3600s
tls_random_source = dev:/dev/urandom
trace_service_name = trace
transport_maps =
transport_retry_time = 60s
trigger_timeout = 10s
undisclosed_recipients_header = To: undisclosed-recipients:;
unknown_address_reject_code = 450
unknown_client_reject_code = 450
unknown_hostname_reject_code = 450
unknown_local_recipient_reject_code = 550
unknown_relay_recipient_reject_code = 550
unknown_virtual_alias_reject_code = 550
unknown_virtual_mailbox_reject_code = 550
unverified_recipient_reject_code = 450
unverified_sender_reject_code = 450
verp_delimiter_filter = -=+
virtual_alias_domains = $virtual_alias_maps
virtual_alias_expansion_limit = 1000
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_alias_recursion_limit = 1000
virtual_destination_concurrency_limit = $default_destination_concurrency_limit
virtual_destination_recipient_limit = $default_destination_recipient_limit
virtual_gid_maps =
virtual_mailbox_base =
virtual_mailbox_domains = $virtual_mailbox_maps
virtual_mailbox_limit = 51200000
virtual_mailbox_lock = fcntl
virtual_mailbox_maps =
virtual_minimum_uid = 100
virtual_transport = virtual
virtual_uid_maps =

Any help is very much appreciated.

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