clamav clamav-update のインストール
August 20, 2017 – 11:17 pm今朝、logwatch上に以下のWarning Errorを確認。
LibClamAV Warning: ************************************************** LibClamAV Warning: *** The virus database is older than 7 days! *** LibClamAV Warning: *** Please update it as soon as possible. *** LibClamAV Warning: **************************************************
このWarning Error, 昨年の10月に経験している。Virus scan用のデータベースの更新が正常に行われていないために発生している。
この「障害」に対応するため、clamav clamav-updateを更新。更新作業内容をメモしておいた。
原因と対策– clamav clamav-update のインストール
昨年10月時点で、このエラーに対応するためClamavを更新、対応していたが、その直後、OSをScientific Linux 7.2にUpgradeし、システム周りを全面的に更新、インストール作業をしている。その際、本来必要だったアンチウィルスソフトclamav関連の再インストール作業が行われていないことが分かった。
virus database の更新はコマンド freshclam で行なわれるが、clamav clamav-updateがインストールされていなかったため、freshclamコマンドが無いことから、clamav, clamav-updateがインストールされていないことが分かった。
早速、clamav, clam-updateのインストール作業を実施。
Clamav インストール作業時ログを以下に掲載：
# yum --enablerepo=epel install clamav clamav-update epel/x86_64/metalink | 5.6 kB 00:00:00 epel | 4.3 kB 00:00:00 (1/3): epel/x86_64/group_gz | 170 kB 00:00:00 (2/3): epel/x86_64/updateinfo | 810 kB 00:00:00 (3/3): epel/x86_64/primary_db | 4.8 MB 00:00:31 Resolving Dependencies --> Running transaction check ---> Package clamav.x86_64 0:0.99.2-8.el7 will be installed --> Processing Dependency: clamav-lib = 0.99.2-8.el7 for package: clamav-0.99.2-8.el7.x86_64 ---> Package clamav-update.x86_64 0:0.99.2-8.el7 will be installed --> Processing Dependency: clamav-filesystem = 0.99.2-8.el7 for package: clamav-update-0.99.2-8.el7.x86_64 --> Running transaction check ---> Package clamav-filesystem.noarch 0:0.99.2-1.el7 will be updated --> Processing Dependency: clamav-filesystem = 0.99.2-1.el7 for package: clamav-data-0.99.2-1.el7.noarch --> Processing Dependency: clamav-filesystem = 0.99.2-1.el7 for package: clamav-server-0.99.2-1.el7.x86_64 ---> Package clamav-filesystem.noarch 0:0.99.2-8.el7 will be an update ---> Package clamav-lib.x86_64 0:0.99.2-1.el7 will be updated ---> Package clamav-lib.x86_64 0:0.99.2-8.el7 will be an update --> Running transaction check ---> Package clamav-data.noarch 0:0.99.2-1.el7 will be updated ---> Package clamav-data.noarch 0:0.99.2-8.el7 will be an update ---> Package clamav-server.x86_64 0:0.99.2-1.el7 will be updated --> Processing Dependency: clamav-server = 0.99.2-1.el7 for package: clamav-server-systemd-0.99.2-1.el7.noarch ---> Package clamav-server.x86_64 0:0.99.2-8.el7 will be an update --> Running transaction check ---> Package clamav-server-systemd.noarch 0:0.99.2-1.el7 will be updated ---> Package clamav-server-systemd.noarch 0:0.99.2-8.el7 will be an update --> Finished Dependency Resolution Dependencies Resolved ========================================================================================================================================== Package Arch Version Repository Size ========================================================================================================================================== Installing: clamav x86_64 0.99.2-8.el7 epel 846 k clamav-update x86_64 0.99.2-8.el7 epel 96 k Updating for dependencies: clamav-data noarch 0.99.2-8.el7 epel 111 M clamav-filesystem noarch 0.99.2-8.el7 epel 21 k clamav-lib x86_64 0.99.2-8.el7 epel 3.8 M clamav-server x86_64 0.99.2-8.el7 epel 107 k clamav-server-systemd noarch 0.99.2-8.el7 epel 21 k Transaction Summary ========================================================================================================================================== Install 2 Packages Upgrade ( 5 Dependent packages) Total download size: 115 M Is this ok [y/d/N]: y Downloading packages: Delta RPMs disabled because /usr/bin/applydeltarpm not installed. (1/7): clamav-0.99.2-8.el7.x86_64.rpm | 846 kB 00:00:00 (2/7): clamav-data-0.99.2-8.el7.noarch.rpm | 111 MB 00:00:13 (3/7): clamav-filesystem-0.99.2-8.el7.noarch.rpm | 21 kB 00:00:00 (4/7): clamav-lib-0.99.2-8.el7.x86_64.rpm | 3.8 MB 00:00:00 (5/7): clamav-server-0.99.2-8.el7.x86_64.rpm | 107 kB 00:00:00 (6/7): clamav-server-systemd-0.99.2-8.el7.noarch.rpm | 21 kB 00:00:00 (7/7): clamav-update-0.99.2-8.el7.x86_64.rpm | 96 kB 00:00:00 ------------------------------------------------------------------------------------------------------------------------------------------ Total 8.3 MB/s | 115 MB 00:00:13 Running transaction check Running transaction test Transaction test succeeded Running transaction Updating : clamav-filesystem-0.99.2-8.el7.noarch 1/12 Updating : clamav-data-0.99.2-8.el7.noarch 2/12 Updating : clamav-lib-0.99.2-8.el7.x86_64 3/12 Updating : clamav-server-0.99.2-8.el7.x86_64 4/12 Updating : clamav-server-systemd-0.99.2-8.el7.noarch 5/12 Installing : clamav-0.99.2-8.el7.x86_64 6/12 Installing : clamav-update-0.99.2-8.el7.x86_64 7/12 Cleanup : clamav-server-systemd-0.99.2-1.el7.noarch 8/12 Cleanup : clamav-server-0.99.2-1.el7.x86_64 9/12 Cleanup : clamav-lib-0.99.2-1.el7.x86_64 10/12 Cleanup : clamav-data-0.99.2-1.el7.noarch 11/12 Cleanup : clamav-filesystem-0.99.2-1.el7.noarch 12/12 Verifying : clamav-lib-0.99.2-8.el7.x86_64 1/12 Verifying : clamav-filesystem-0.99.2-8.el7.noarch 2/12 Verifying : clamav-data-0.99.2-8.el7.noarch 3/12 Verifying : clamav-0.99.2-8.el7.x86_64 4/12 Verifying : clamav-server-systemd-0.99.2-8.el7.noarch 5/12 Verifying : clamav-update-0.99.2-8.el7.x86_64 6/12 Verifying : clamav-server-0.99.2-8.el7.x86_64 7/12 Verifying : clamav-server-0.99.2-1.el7.x86_64 8/12 Verifying : clamav-data-0.99.2-1.el7.noarch 9/12 Verifying : clamav-server-systemd-0.99.2-1.el7.noarch 10/12 Verifying : clamav-filesystem-0.99.2-1.el7.noarch 11/12 Verifying : clamav-lib-0.99.2-1.el7.x86_64 12/12 Installed: clamav.x86_64 0:0.99.2-8.el7 clamav-update.x86_64 0:0.99.2-8.el7 Dependency Updated: clamav-data.noarch 0:0.99.2-8.el7 clamav-filesystem.noarch 0:0.99.2-8.el7 clamav-lib.x86_64 0:0.99.2-8.el7 clamav-server.x86_64 0:0.99.2-8.el7 clamav-server-systemd.noarch 0:0.99.2-8.el7 Complete!
設定ファイル freshclam.conf を修正：
# sed -i -e "s/^Example/#Example/" /etc/freshclam.conf
ウィルスデータベースの更新：
# freshclam ClamAV update process started at Sun Aug 20 21:39:25 2017 Downloading main-58.cdiff [100%] main.cld updated (version: 58, sigs: 4566249, f-level: 60, builder: sigmgr) WARNING: getfile: daily-21724.cdiff not found on database.clamav.net (IP: 27.96.54.66) WARNING: getpatch: Can't download daily-21724.cdiff from database.clamav.net WARNING: getfile: daily-21724.cdiff not found on database.clamav.net (IP: 203.178.137.175) WARNING: getpatch: Can't download daily-21724.cdiff from database.clamav.net WARNING: getfile: Unknown response from database.clamav.net (IP: 219.94.128.99) WARNING: getpatch: Can't download daily-21724.cdiff from database.clamav.net WARNING: Incremental update failed, trying to download daily.cvd Downloading daily.cvd [100%] daily.cvd updated (version: 23685, sigs: 1742430, f-level: 63, builder: neo) Downloading bytecode-279.cdiff [100%] Downloading bytecode-280.cdiff [100%] Downloading bytecode-281.cdiff [100%] Downloading bytecode-282.cdiff [100%] Downloading bytecode-283.cdiff [100%] Downloading bytecode-284.cdiff [100%] Downloading bytecode-285.cdiff [100%] Downloading bytecode-286.cdiff [100%] Downloading bytecode-287.cdiff [100%] Downloading bytecode-288.cdiff [100%] Downloading bytecode-289.cdiff [100%] Downloading bytecode-290.cdiff [100%] Downloading bytecode-291.cdiff [100%] Downloading bytecode-292.cdiff [100%] Downloading bytecode-293.cdiff [100%] Downloading bytecode-294.cdiff [100%] Downloading bytecode-295.cdiff [100%] Downloading bytecode-296.cdiff [100%] Downloading bytecode-297.cdiff [100%] Downloading bytecode-298.cdiff [100%] Downloading bytecode-299.cdiff [100%] Downloading bytecode-300.cdiff [100%] Downloading bytecode-301.cdiff [100%] Downloading bytecode-302.cdiff [100%] Downloading bytecode-303.cdiff [100%] Downloading bytecode-304.cdiff [100%] Downloading bytecode-305.cdiff [100%] Downloading bytecode-306.cdiff [100%] Downloading bytecode-307.cdiff [100%] Downloading bytecode-308.cdiff [100%] Downloading bytecode-309.cdiff [100%] bytecode.cld updated (version: 309, sigs: 69, f-level: 63, builder: bbaker) Database updated (6308748 signatures) from database.clamav.net (IP: 218.44.253.75)