■ホスト名称の確認
/etc/hosts
例）192.xx.xx.1 hhh.xxx.co.jp hhh
127.0.0.1 localhost.localdomain localhost
■ネットワーク設定の確認
/etc/sysconfig/network
例）NETWORKING=yes
HOSTNAME=hhh
■ＩＰアドレスの確認
/etc/sysconfig/network-scripts/ifcfg-eth0
例）DEVICE=eth0 ← ネットワーク・インタフェース名
BOOTPROTO=none ← 固定IPアドレスの場合の指定 手動でIPアドレスを指定する時は、"static"
BROADCAST=10.20.xx.255 ← ブロードキャスト・アドレス
HWADDR=00:01:02:xx:xx:C8 ← MACアドレス
IPADDR=10.20.xx.xx ← IPアドレス
NETMASK=255.255.255.0 ← ネット・マスク
NETWORK=10.20.xx.0 ← ネットワーク・アドレス
ONBOOT=yes ← マシン起動時にネットワークを有効にする場合はyes
TYPE=Ethernet
GATEWAY=10.20.xx.254 ← ゲットウェイ
USERCTL=no
IPV6INIT=no
PEERDNS=yes
■ＤＮＳサーバのＩＰアドレスをの確認
/etc/resolv.conf
domain xxx.xxx.co.jp
■ｔｅｌｎｅｔを有効にする
/etc/xinetd.d/krb5-telnet
# default: off
# description: The kerberized telnet server accepts normal telnet sessions, \
# but can also use Kerberos 5 authentication.
service telnet
{
flags = REUSE
socket_type = stream
wait = no
user = root
server = /usr/kerberos/sbin/telnetd
log_on_failure += USERID
disable = yes ← 初期値としては、"yes"
}
disable = yes を no に変更
変更したxinetdの設定ファイルを反映させるため、再起動
$ su - ・・・ root権限で接続
# /etc/rc.d/init.d/xinetd restart
■ＦＴＰの自動起動を有効にする
# /sbin/chkconfig vsftpd on
■ＦＴＰの設定
vi /etc/vsftpd/vsftpd.conf
anonymous_enable=NO ←YES を NO に変更 → Anonymousユーザ（匿名ユーザ）によるアクセスを許可するかの指定。
ascii_upload_enable=YES ←# を削除 → Asciiモードによる、アップロード/ダウンロードを許可するかを指定。
ascii_download_enable=YES ←# を削除 → Asciiモードによる、アップロード/ダウンロードを許可するかを指定。
：
userlist_deny=NO ←追加 → /etc/vsftpd.user_list にて指定されたユーザのアクセスを許可するかを指定。
use_localtime=YES ←追加 → 日本標準時間を使うかどうかを指定。デフォルトはGMTによる表示。
vi /etc/vsftpd.user_list
特定ユーザしかFTPを使用できなくするユーザアクセス制限のために、デフォルト値の先頭に # を追記し、すべてコメントアウト
#root
#bin
#daemon
#adm
#lp
#sync
#shutdown
#halt
#mail
#news
#uucp
#operator
#games
#nobody
FTPログインを許可するユーザを追加
ftp_user_name
■ＦＴＰの再起動
# /sbin/service vsftpd start
■Sendmailの設定
1. /etc/mail/sendmail.mc を編集する
以下のファイルを編集する。
※編集する前にsendmail.mcとsendmail.cfのオリジナルをコピーしておくことをお勧めします。
[root@Ee-Cash ~]# cp -p /etc/mail/sendmail.mc /etc/mail/sendmail.mc.org
[root@Ee-Cash ~]# vi /etc/mail/sendmail.mc
①22行目あたりに、下記のような「SMART_HOST」という記述があると思うので、これを変更します。
（変更前）dnl define(`SMART_HOST',`smtp.your.provider')
↓
（変更後）
define(`SMART_HOST',`smtp:[10.20.XX.XX]')dnl
②100行目あたりに、下記のような「EXPOSED_USER」という記述があると思うので、これの下に下記を追加します。
（変更前）EXPOSED_USER(`root')dnl
↓
（変更後）EXPOSED_USER(`root')dnl
FEATURE(`nocanonify')dnl
③105行目あたりに、下記のような「DAEMON_OPTIONS(`Port=smtp)」という記述があると思うので、これをコメント(dnlを挿入)します。
（変更前）DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
↓
（変更後）dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
================================================================================
$ more sendmail.mc
divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl # make -C /etc/mail
dnl #
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for Red Hat Linux')dnl
OSTYPE(`linux')dnl
dnl #
dnl # default logging level is 9, you might want to set it higher to
dnl # debug the configuration
dnl #
dnl define(`confLOG_LEVEL', `9')dnl
dnl #
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
dnl define(`SMART_HOST',`smtp.your.provider')
define(`SMART_HOST',`smtp:[10.20.88.1]')dnl
dnl #
define(`confDEF_USER_ID',``8:12'')dnl
dnl define(`confAUTO_REBUILD')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST',true)dnl
define(`confDONT_PROBE_INTERFACES',true)dnl
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
dnl #
dnl # The following allows relaying if the user authenticates, and disallows
dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links
dnl #
dnl define(`confAUTH_OPTIONS', `A p')dnl
dnl #
dnl # PLAIN is the preferred plaintext authentication method and used by
dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do
dnl # use LOGIN. Other mechanisms should be used if the connection is not
dnl # guaranteed secure.
dnl # Please remember that saslauthd needs to be running for AUTH.
dnl #
dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl # cd /usr/share/ssl/certs; make sendmail.pem
dnl # Complete usage:
dnl # make -C /usr/share/ssl/certs usage
dnl #
dnl define(`confCACERT_PATH',`/usr/share/ssl/certs')
dnl define(`confCACERT',`/usr/share/ssl/certs/ca-bundle.crt')
dnl define(`confSERVER_CERT',`/usr/share/ssl/certs/sendmail.pem')
dnl define(`confSERVER_KEY',`/usr/share/ssl/certs/sendmail.pem')
dnl #
dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's
dnl # slapd, which requires the file to be readble by group ldap
dnl #
dnl define(`confDONT_BLAME_SENDMAIL',`groupreadablekeyfile')dnl
dnl #
dnl define(`confTO_QUEUEWARN', `4h')dnl
dnl define(`confTO_QUEUERETURN', `5d')dnl
dnl define(`confQUEUE_LA', `12')dnl
dnl define(`confREFUSE_LA', `18')dnl
define(`confTO_IDENT', `0')dnl
dnl FEATURE(delay_checks)dnl
FEATURE(`no_default_msa',`dnl')dnl
FEATURE(`smrsh',`/usr/sbin/smrsh')dnl
FEATURE(`mailertable',`hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
dnl #
dnl # The following limits the number of processes sendmail can fork to accept
dnl # incoming messages or process its message queues to 12.) sendmail refuses
dnl # to accept connections once it has reached its quota of child processes.
dnl #
dnl define(`confMAX_DAEMON_CHILDREN', 12)dnl
dnl #
dnl # Limits the number of new connections per second. This caps the overhead
dnl # incurred due to forking new sendmail processes. May be useful against
dnl # DoS attacks or barrages of spam. (As mentioned below, a per-IP address
dnl # limit would be useful but is not available as an option at this writing.)
dnl #
dnl define(`confCONNECTION_RATE_THROTTLE', 3)dnl
dnl #
dnl # The -t option will retry delivery if e.g. the user runs over his quota.
dnl #
FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db',`hash -T -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
EXPOSED_USER(`root')dnl
FEATURE(`nocanonify')dnl
dnl #
dnl # The following causes sendmail to only listen on the IPv4 loopback address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 587 for
dnl # mail from MUAs that authenticate. Roaming users who can't reach their
dnl # preferred sendmail daemon due to port 25 being blocked or redirected find
dnl # this useful.
dnl #
dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 465, but
dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed
dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't
dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS
dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps
dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1.
dnl #
dnl # For this to work your OpenSSL certificates must be configured.
dnl #
dnl DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
dnl #
dnl # The following causes sendmail to additionally listen on the IPv6 loopback
dnl # device. Remove the loopback address restriction listen to the network.
dnl #
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl
dnl #
dnl # enable both ipv6 and ipv4 in sendmail:
dnl #
dnl DAEMON_OPTIONS(`Name=MTA-v4, Family=inet, Name=MTA-v6, Family=inet6')
dnl #
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
FEATURE(`accept_unresolvable_domains')dnl
dnl #
dnl FEATURE(`relay_based_on_MX')dnl
dnl #
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl #
LOCAL_DOMAIN(`localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
dnl MASQUERADE_AS(`mydomain.com')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
================================================================================
2. /etc/mail/sendmail.cf を作成する
# m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
3. /etc/mail/submit.mc を編集する
以下のファイルを編集する。
※編集する前にsubmit.mcとsubmit.cfのオリジナルをコピーしておくことをお勧めします。
[root@Ee-Cash ~]# cp -p /etc/mail/submit.mc /etc/mail/submit.mc.org
[root@Ee-Cash ~]# vi /etc/mail/submit.mc
①25行目あたりに、下記のような「confDIRECT」という記述があると思うので、これを変更します。
（変更前）dnl define(`confDIRECT_SUBMISSION_MODIFIERS',`C')
↓
（変更後）
define(`confDIRECT_SUBMISSION_MODIFIERS',`C')
4. /etc/mail/submit.cf を作成する
m4コマンドでsubmit.cfを更新する。
[root@Ee-Cash ~]# m4 /etc/mail/submit.mc > /etc/mail/submit.cf
5. /etc/Hosts ファイル に上記で設定したSMTPサーバー（メールサーバー）を登録する
# vi /etc/hosts
例）10.20.xx.xx xx.xx.co.jp hhh
127.0.0.1 localhost.localdomain localhost
6. 設定値を反映させるため、SendMailを再起動する
# /etc/init.d/sendmail restart
最終更新：2008年11月16日 11:43
