Exim и Clamav

EXIM, sendmail, postfix, Dovecot и прочие. Решение проблем связанных с работой электронной почты

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Storoge
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Exim и Clamav

Непрочитанное сообщение Storoge » 2008-01-15 10:59:40

Настраивал локальную почтовую систему по статье на сайте exim+dovecot. Exim собран с поддержкой сканирования.
Возникла проблема с антивирусником Clamav. Если я его отключаю в настройках exim'а, все работает нормально, если включаю то в логах пишет следующее:

Код: Выделить всё

Jan 15 08:04:25 media exim[24230]: 1JEdyL-0006Io-LQ malware acl condition: clamd: ClamAV returned /var/spool/exim/scan/1JEdyL-0006Io-LQ: lstat() failed. ERROR
Jan 15 08:04:25 media exim[24230]: 1JEdyL-0006Io-LQ malware acl condition: clamd: ClamAV returned /var/spool/exim/scan/1JEdyL-0006Io-LQ: lstat() failed. ERROR
Jan 15 08:04:25 media exim[24230]: 1JEdyL-0006Io-LQ H=(asimin) [10.4.100.182] I=[10.4.100.80]:25 F=<test1@bgita2.ru> temporarily rejected after DATA
Jan 15 08:04:25 media exim[24230]: [1\22] 1JEdyL-0006Io-LQ H=(asimin) [10.4.100.182] I=[10.4.100.80]:25 F=<test1@bgita2.ru> temporarily rejected after DATA
Jan 15 08:04:25 media exim[24230]: [2\22] Envelope-from: <test1@bgita2.ru>
Jan 15 08:04:25 media exim[24230]: [3\22] Envelope-to: <test@bgita2.ru>
Jan 15 08:04:25 media exim[24230]: [4\22] P Received: from [10.4.100.182] (helo=asimin)
Jan 15 08:04:25 media exim[24230]: [5\22]       by media.bgita2.ru with smtp (Exim 4.68 (FreeBSD))
Jan 15 08:04:25 media exim[24230]: [6\22]       (envelope-from <test1@bgita2.ru>)
Jan 15 08:04:25 media exim[24230]: [7\22]       id 1JEdyL-0006Io-LQ
Jan 15 08:04:25 media exim[24230]: [8\22]       for test@bgita2.ru; Tue, 15 Jan 2008 08:04:25 +0300
Jan 15 08:04:25 media exim[24230]: [9\22] I Message-ID: <000101c8574c$47821ea0$b664040a@asimin>
Jan 15 08:04:25 media exim[24230]: [10\22] F From: <test1@bgita2.ru>
Jan 15 08:04:25 media exim[24230]: [11\22] T To: <test@bgita2.ru>
Jan 15 08:04:25 media exim[24230]: [12\22]   Subject: fwefwerf
Jan 15 08:04:25 media exim[24230]: [13\22]   Date: Mon, 14 Jan 2008 21:25:55 +0300
Jan 15 08:04:25 media exim[24230]: [14\22]   MIME-Version: 1.0
Jan 15 08:04:25 media exim[24230]: [15\22]   Content-Type: multipart/alternative;
Jan 15 08:04:25 media exim[24230]: [16\22]      boundary="----=_NextPart_000_0044_01C856F4.0C160DC0"
Jan 15 08:04:25 media exim[24230]: [17\22]   X-Priority: 3
Jan 15 08:04:25 media exim[24230]: [18\22]   X-MSMail-Priority: Normal
Jan 15 08:04:25 media exim[24230]: [19\22]   X-Mailer: Microsoft Outlook Express 6.00.2900.3138
Jan 15 08:04:25 media exim[24230]: [20\22]   X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198
Jan 15 08:04:25 media exim[24230]: [21\22]   X-Antivirus: avast! (VPS 080111-0, 01/11/2008), Outbound message
Jan 15 08:04:25 media exim[24230]: [22/22]   X-Antivirus-Status: Clean
Jan 15 08:04:25 media dovecot: pop3-login: Login: user=<test1@bgita2.ru>, method=PLAIN, rip=10.4.100.182, lip=10.4.100.80
Jan 15 08:04:25 media dovecot: POP3(test1@bgita2.ru): Disconnected: Logged out top=0/0, retr=0/0, del=0/0, size=0
Jan 15 08:04:25 media dovecot: pop3-login: Login: user=<root@bgita2.ru>, method=PLAIN, rip=10.4.100.182, lip=10.4.100.80
Jan 15 08:04:32 media dovecot: POP3(root@bgita2.ru): Disconnected: Logged out top=0/0, retr=84/169167, del=84/84, size=167739
А Outlook пишет следуюющее:

Код: Выделить всё

Произошла неопознанная ошибка. Тема 'fwefwerf', Учетная запись: '10.4.100.80 (1)', Сервер: '10.4.100.80', Протокол: SMTP, Ответ сервера: '451 Temporary local problem - please try later', Порт: 25, Защита (SSL): Нет, Ошибка сервера: 451, Код ошибки: 0x800CCC6A

И соответственно письмо не отсылается. В чем причина, помогите.
Последний раз редактировалось Alex Keda 2008-01-15 16:21:06, всего редактировалось 1 раз.
Причина: Та заипали незрячие, кнопки кода не видящие =)

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jek
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Re: Exim и Clamav

Непрочитанное сообщение jek » 2008-01-15 12:37:04

Покажите содержимое файла clamd.conf
Возможно, требуется установить в нем следующее:

Код: Выделить всё

# Initialize supplementary group access (clamd must be started by root).
# Default: no
AllowSupplementaryGroups yes

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Re: Exim и Clamav

Непрочитанное сообщение Storoge » 2008-01-15 17:58:40

Код: Выделить всё

##
## Example config file for the Clam AV daemon
## Please read the clamd.conf(5) manual before editing this file.
##


# Comment or remove the line below.
#Example

# Uncomment this option to enable logging.
# LogFile must be writable for the user running daemon.
# A full path is required.
# Default: disabled
LogFile /var/log/clamd.log

# By default the log file is locked for writing - the lock protects against
# running clamd multiple times (if want to run another clamd, please
# copy the configuration file, change the LogFile variable, and run
# the daemon with --config-file option).
# This option disables log file locking.
# Default: no
#LogFileUnlock yes

# Maximum size of the log file.
# Value of 0 disables the limit.
# You may use 'M' or 'm' for megabytes (1M = 1m = 1048576 bytes)
# and 'K' or 'k' for kilobytes (1K = 1k = 1024 bytes). To specify the size
# in bytes just don't use modifiers.
# Default: 1M
#LogFileMaxSize 2M

# Log time with each message.
# Default: no
#LogTime yes

# Also log clean files. Useful in debugging but drastically increases the
# log size.
# Default: no
#LogClean yes

# Use system logger (can work together with LogFile).
# Default: no
#LogSyslog yes

# Specify the type of syslog messages - please refer to 'man syslog'
# for facility names.
# Default: LOG_LOCAL6
#LogFacility LOG_MAIL

# Enable verbose logging.
# Default: no
#LogVerbose yes
# This option allows you to save a process identifier of the listening
# daemon (main thread).
# Default: disabled
PidFile /var/run/clamd.pid

# Optional path to the global temporary directory.
# Default: system specific (usually /tmp or /var/tmp).
TemporaryDirectory /var/tmp

# Path to the database directory.
# Default: hardcoded (depends on installation options)
#DatabaseDirectory /var/lib/clamav

# The daemon works in a local OR a network mode. Due to security reasons we
# recommend the local mode.

# Path to a local socket file the daemon will listen on.
# Default: disabled (must be specified by a user)
LocalSocket /tmp/clamd.socket

# Remove stale socket after unclean shutdown.
# Default: no
FixStaleSocket yes

# TCP port address.
# Default: no
#TCPSocket 3310

# TCP address.
# By default we bind to INADDR_ANY, probably not wise.
# Enable the following to provide some degree of protection
# from the outside world.
# Default: no
#TCPAddr 127.0.0.1

# Maximum length the queue of pending connections may grow to.
# Default: 15
#MaxConnectionQueueLength 30

# Clamd uses FTP-like protocol to receive data from remote clients.
# If you are using clamav-milter to balance load between remote clamd daemons
# on firewall servers you may need to tune the options below.

# Close the connection when the data size limit is exceeded.
# The value should match your MTA's limit for a maximum attachment size.
# Default: 10M
#StreamMaxLength 20M

# Limit port range.
# Default: 1024
#StreamMinPort 30000
# Default: 2048
#StreamMaxPort 32000

# Maximum number of threads running at the same time.
# Default: 10
#MaxThreads 20

# Waiting for data from a client socket will timeout after this time (seconds).
# Value of 0 disables the timeout.
# Default: 120
#ReadTimeout 300

# Waiting for a new job will timeout after this time (seconds).
# Default: 30
#IdleTimeout 60

# Maximum depth directories are scanned at.
# Default: 15
#MaxDirectoryRecursion 20

# Follow directory symlinks.
# Default: no
#FollowDirectorySymlinks yes

# Follow regular file symlinks.
# Default: no
#FollowFileSymlinks yes

# Perform a database check.
# Default: 1800 (30 min)
#SelfCheck 600

# Execute a command when virus is found. In the command string %v will
# be replaced with the virus name.
# Default: no
VirusEvent /usr/local/bin/send_sms 123456789 "VIRUS ALERT: %v"

# Run as another user (clamd must be started by root for this option to work)
# Default: don't drop privileges
User clamav

# Initialize supplementary group access (clamd must be started by root).
# Default: no
AllowSupplementaryGroups yes

# Stop daemon when libclamav reports out of memory condition.
#ExitOnOOM yes

# Don't fork into background.
# Default: no
#Foreground yes

# Enable debug messages in libclamav.
# Default: no
#Debug yes

# Do not remove temporary files (for debug purposes).
# Default: no
#LeaveTemporaryFiles yes

# Detect Possibly Unwanted Applications.
# Default: no
#DetectPUA yes

# In some cases (eg. complex malware, exploits in graphic files, and others),
# ClamAV uses special algorithms to provide accurate detection. This option
# controls the algorithmic detection.
# Default: yes
#AlgorithmicDetection yes


##
## Executable files
##

# PE stands for Portable Executable - it's an executable file format used
# in all 32 and 64-bit versions of Windows operating systems. This option allows
# ClamAV to perform a deeper analysis of executable files and it's also
# required for decompression of popular executable packers such as UPX, FSG,
# and Petite.
# Default: yes
#ScanPE yes

# Executable and Linking Format is a standard format for UN*X executables.
# This option allows you to control the scanning of ELF files.
# Default: yes
#ScanELF yes

# With this option clamav will try to detect broken executables (both PE and
# ELF) and mark them as Broken.Executable.
# Default: no
#DetectBrokenExecutables yes


##
## Documents
##

# This option enables scanning of OLE2 files, such as Microsoft Office
# documents and .msi files.
# Default: yes
#ScanOLE2 yes

# This option enables scanning within PDF files.
# Default: no
#ScanPDF yes

##
## Mail files
##

# Enable internal e-mail scanner.
# Default: yes
#ScanMail yes

# If an email contains URLs ClamAV can download and scan them.
# WARNING: This option may open your system to a DoS attack.
#          Never use it on loaded servers.
# Default: no
#MailFollowURLs no

# Recursion level limit for the mail scanner.
# Default: 64
#MailMaxRecursion 128

# With this option enabled ClamAV will try to detect phishing attempts by using
# signatures.
# Default: yes
#PhishingSignatures yes

# Scan URLs found in mails for phishing attempts using heuristics.
# Default: yes
#PhishingScanURLs yes

# Use phishing detection only for domains listed in the .pdb database. It is
# not recommended to have this option turned off, because scanning of all
# domains may lead to many false positives!
# Default: yes
#PhishingRestrictedScan yes

# Always block SSL mismatches in URLs, even if the URL isn't in the database.
# This can lead to false positives.
#
# Default: no
#PhishingAlwaysBlockSSLMismatch no

# Always block cloaked URLs, even if URL isn't in database.
# This can lead to false positives.
#
# Default: no
#PhishingAlwaysBlockCloak no


##
## HTML
##

# Perform HTML normalisation and decryption of MS Script Encoder code.
# Default: yes
#ScanHTML yes


##
## Archives
##

# ClamAV can scan within archives and compressed files.
# Default: yes
#ScanArchive yes

# The options below protect your system against Denial of Service attacks
# using archive bombs.

# Files in archives larger than this limit won't be scanned.
# Value of 0 disables the limit.
# Default: 10M
#ArchiveMaxFileSize 15M

# Nested archives are scanned recursively, e.g. if a Zip archive contains a RAR
# file, all files within it will also be scanned. This options specifies how
# deeply the process should be continued.
# Value of 0 disables the limit.
# Default: 8
#ArchiveMaxRecursion 10

# Number of files to be scanned within an archive.
# Value of 0 disables the limit.
# Default: 1000
#ArchiveMaxFiles 1500

# If a file in an archive is compressed more than ArchiveMaxCompressionRatio
# times it will be marked as a virus (Oversized.ArchiveType, e.g. Oversized.Zip)
# Value of 0 disables the limit.
# Default: 250
#ArchiveMaxCompressionRatio 300

# Use slower but memory efficient decompression algorithm.
# only affects the bzip2 decompressor.
# Default: no
#ArchiveLimitMemoryUsage yes

# Mark encrypted archives as viruses (Encrypted.Zip, Encrypted.RAR).
# Default: no
#ArchiveBlockEncrypted no

# Mark archives as viruses (e.g. RAR.ExceededFileSize, Zip.ExceededFilesLimit)
# if ArchiveMaxFiles, ArchiveMaxFileSize, or ArchiveMaxRecursion limit is
# reached.
# Default: no
#ArchiveBlockMax no

# Enable support for Sensory Networks' NodalCore hardware accelerator.
# Default: no
#NodalCoreAcceleration yes


##
## Clamuko settings
## WARNING: This is experimental software. It is very likely it will hang
##          up your system!!!
##

# Enable Clamuko. Dazuko (/dev/dazuko) must be configured and running.
# Default: no
#ClamukoScanOnAccess yes

# Set access mask for Clamuko.
# Default: no
#ClamukoScanOnOpen yes
#ClamukoScanOnClose yes
#ClamukoScanOnExec yes

# Set the include paths (all files inside them will be scanned). You can have
# multiple ClamukoIncludePath directives but each directory must be added
# in a seperate line.
# Default: disabled
#ClamukoIncludePath /home
#ClamukoIncludePath /students

# Set the exclude paths. All subdirectories are also excluded.
# Default: disabled
#ClamukoExcludePath /home/bofh

# Don't scan files larger than ClamukoMaxFileSize
# Value of 0 disables the limit.
# Default: 5M
#ClamukoMaxFileSize 10M

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Alex Keda
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Re: Exim и Clamav

Непрочитанное сообщение Alex Keda » 2008-01-15 19:43:27

и все кинулись разбирать где камменты а где строки по делу...
Убей их всех! Бог потом рассортирует...

jek
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Re: Exim и Clamav

Непрочитанное сообщение jek » 2008-01-16 8:41:11

У меня основное подозрение падает на права доступа, поэтому ещё два вопроса:
1. От каких пользователя и группы работает exim?
2. Включен ли пользователь clamav в группу exim'a?

P.S. Настройки производились по статье http://www.lissyara.su/?id=1173?

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Alex Keda
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Re: Exim и Clamav

Непрочитанное сообщение Alex Keda » 2008-01-16 9:57:42

если всё ставицца из портов - в нужные группы всё будет включено автоматом.
Убей их всех! Бог потом рассортирует...