ClamAV

/etc/init.d/clamd restart

LibClamAV Warning: Detected duplicate databases /var/lib/clamav/bytecode.cvd and /var/lib/clamav/bytecode.cld, please manually remove one of them
LibClamAV Warning: Detected duplicate databases /var/lib/clamav/main.cvd and /var/lib/clamav/main.cld, please manually remove one of them

rm -f /var/lib/clamav/bytecode.cvd
rm -f /var/lib/clamav/bytecode.cld
rm -f /var/lib/clamav/main.cvd
rm -f /var/lib/clamav/main.cld

/etc/init.d/clamd restart

CentOS7.4でPPPoE接続 rp-pppoe編

パッケージインストール

rp-pppoeを入れる

# yum -y install rp-pppoe

NICの確認

# nmcli c
名前 UUID タイプ デバイス
ens192 c019c2ff-5674-43ae-a917-fa6f96614d7a 802-3-ethernet ens192
ens224 059706f2-4077-424d-9d23-214bcf6441a4 802-3-ethernet ens224
ens256 c031fe2d-6976-45b3-9ba9-f1c8e32ddd3d 802-3-ethernet ens256

PPPoEの設定

下記コマンドでプロバイダーの接続ID・パスワードなどを設定する。

# pppoe-setup

プロバイダーの接続IDを指定

Welcome to the PPPoE client setup. First, I will run some checks on
your system to make sure the PPPoE client is installed properly...

LOGIN NAME

Enter your Login Name (default root): [プロバイダーの接続ID]

ens192にPPPoE接続を割り当てる

INTERFACE

Enter the Ethernet interface connected to the PPPoE modem
For Solaris, this is likely to be something like /dev/hme0.
For Linux, it will be ethX, where 'X' is a number.
(default eth0): ens192

常時接続環境の場合はデフォルトno
そのままエンター

Do you want the link to come up on demand, or stay up continuously?
If you want it to come up on demand, enter the idle time in seconds
after which the link should be dropped. If you want the link to
stay up permanently, enter 'no' (two letters, lower-case.)
NOTE: Demand-activated links do not interact well with dynamic IP
addresses. You may have some problems with demand-activated links.
Enter the demand value (default no):

/etc/resolv.confを参照してほしいので
そのままエンター

DNS

Please enter the IP address of your ISP's primary DNS server.
If your ISP claims that 'the server will provide dynamic DNS addresses',
enter 'server' (all lower-case) here.
If you just press enter, I will assume you know what you are
doing and not modify your DNS setup.
Enter the DNS information here:

プロバイダーの接続パスワードを入力

PASSWORD

Please enter your Password: [プロバイダーの接続パスワード]

一般ユーザーでも接続できるのか という設定だと思う。
とりあえずyesにしておく。

USERCTRL

Please enter 'yes' (three letters, lower-case.) if you want to allow
normal user to start or stop DSL connection (default yes):

ファイヤーウォールの設定
firewalld側で設定するのでとりあえず0を指定

FIREWALLING

Please choose the firewall rules to use. Note that these rules are
very basic. You are strongly encouraged to use a more sophisticated
firewall setup; however, these will provide basic security. If you
are running any servers on your machine, you must choose 'NONE' and
set up firewalling yourself. Otherwise, the firewall rules will deny
access to all standard servers like Web, e-mail, ftp, etc. If you
are using SSH, the rules will block outgoing SSH connections which
allocate a privileged source port.

The firewall choices are:
0 - NONE: This script will not set any firewall rules. You are responsible
for ensuring the security of your machine. You are STRONGLY
recommended to use some kind of firewall rules.
1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation
2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway
for a LAN
Choose a type of firewall (0-2): 0

1,2の場合は接続時に下記スクリプトが実行されるので
細かい設定が出来る。
例えば、マルチホーミング時のゲートウェイの設定とか

/etc/ppp/firewall-masq
/etc/ppp/ip-up

設定を保存しますか？
yを設定

** Summary of what you entered **

Ethernet Interface: ens192
User name: 50921_01@n-f.ipq.jp
Activate-on-demand: No
DNS: Do not adjust
Firewalling: NONE
User Control: yes
Accept these settings and adjust configuration files (y/n)? y

以上で設定完了。
ifcfg-ppp0が生成される。

/etc/sysconfig/network-scripts/ifcfg-ppp0

カーネルモードの方が負荷がかからなく、速度も出るらしいので設定する。

# vi /etc/sysconfig/network-scripts/ifcfg-ppp0

LINUX_PLUGIN=/usr/lib64/pppd/2.4.5/rp-pppoe.soを追加

USERCTL=yes
BOOTPROTO=dialup
NAME=DSLppp0
DEVICE=ppp0
TYPE=xDSL
ONBOOT=yes
PIDFILE=/var/run/pppoe-adsl.pid
FIREWALL=NONE
PING=.
PPPOE_TIMEOUT=80
LCP_FAILURE=3
LCP_INTERVAL=20
CLAMPMSS=1412
CONNECT_POLL=6
CONNECT_TIMEOUT=60
DEFROUTE=yes
SYNCHRONOUS=no
ETH=ens192
PROVIDER=DSLppp0
USER=[プロバイダーの接続ID]
PEERDNS=no
DEMAND=no
LINUX_PLUGIN=/usr/lib64/pppd/2.4.5/rp-pppoe.so