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2013ǯ8��22��(��)

�� gmail �εհ��

_ ��ȤȤ��餤��ۤ� ��˽ФƤ��ɡ�gmail ��հ��Τʤ� v6 ��ɥ쥹��Υ᡼��򽳤�Ϥ᤿�餷��⤦��ɤ��ΤǼ�ĥ�Ϸ��֤��ʤ��ɡ��Х��Ǥ��

_ �ƽ�ξ��礹��ȡ�gmail ��¤��줿�Τ��轵�ζ��ˤ��꤫��餷��ɡ��ä�ʹ��Ʋ�� 򸫤ˤ��ä��Ȥ��ˤ�
IPv6 ��ɲäΥ��ɥ饤��

�� IP �ˤ� PTR �쥳��ɡ�� IP �εհ�� DNS�ˤ�ɬ�פǤ��ޤ��PTR �쥳��ɤǻ��ꤵ��Ƥ��ۥ��̾�� DNS ��ˤ�äƼ�� IP �Ȱ��פ��Ƥ��ɬ�פ��ޤ��Ǥʤ��ϡ��᡼��ǥ᡼�� ޡ��դ��줿�ꡢ�᡼�뤬��ݤ��뤳�Ȥ��ޤ��
��ɥᥤ��ϡ�SPF ��å��ޤ�� DKIM ��å��˥ѥ��ɬ�פ��ޤ��Ǥʤ��ϡ��᡼��ǥ᡼�� ޡ��դ��뤳�Ȥ��ޤ��

��ΰ��Ϥʤ��ä��Ϥ��¤��ä��Τ��轵��ɡ��ʸ��ɲä��줿�ΤϤ��Τ��Ȥ��ȡ��ġ��ְ��Υ��ɥ饤��פʤ��ͤ��Х륯�ǤϤʤ�ñȯ�Υ᡼��Ǥ⤳��¤�Ŭ�Ѥ��Ƥ�褦��ɡ�
_ �Ȥꤢ�� postfix �ʤ� smtp_address_preference = ipv4 ��ꤷ�Ƥ�� v4 ��ͥ�褹��褦�ˤʤ�Τǲ��Ǥ��Ȥϻפ��gmail �ʳ�� v4 ��ͥ�褵��褦�ˤʤä��㤦��ɡ��줬�Ȥ��ʤ��Ť� postfix �Ǥ�
-- master.cf
smtp4      unix  -       -       n       -       -       smtp -o inet_protocols=ipv4

-- transport
gmail.com	smtp4:
�Ȥ��񤤤Ƥ��ȡ�gmail ��Τ� v4 ��褦�ˤʤ�Ϥ���Ƥʤ��ɡ�� gmail.com �ˤ� v4 ��äƤ⤽��ʳ�� google apps �ʥɥᥤ��ˤ� v6 ��äƤ��ޤ��Τǡ��Ĥ�� transport ��ɲä��봶��ǡ��ɤ��ä��顢main.cf �� default_transport = smtp4 �Ƚ񤤤Ƥ��С��ɤ��Τ� v4 �Τߤˤʤ�Ϥ�(smtp_address_preference �Ȱ�ä� v4��ͥ��פǤϤʤ��v4�֤Τߡ�)��
_ sendmail �Ϥ�꤫��狼��ʤ��.mc ��
CLIENT_OPTIONS(`Family=inet6, Address=::1')
�Ȥ��񤯤ȡ�::1 �򥽡��ɥ쥹�Ȥ��Ȥ��Ƽ��Ԥ�� v4 �˥ե��Хå��󤸤�ʤ��ʡ��֤󡣤��뤤�ϡ�filter-aaaa-on-v4 yes ��Ƥ� BIND �� v4 ��̾��褷�ˤ��褦�ˤ��С�AAAA ��֤äƤ��ʤ��ʤ�ΤǼ¸��Ǥ��ɤä��ˤ��Ƥ�ڤ��뤱�ɡ�

2013ǯ8��26��(��)

�� whitespace.sh

_ brainfuck ��¤��ָ��ΤҤȤġ��ɤ��ȥ��֤Ȳ��Ԥ��ǵ��Ҥ�� Whitespace�Υ��󥿥ץ꥿�� 񤤤Ƥߤ��sh �ǡ��Ĥ��ץ륳��ɤ��Ƥߤ��ǤϤȤꤢ��ɤ��ư��ä��٤��ɡ�ash (freebsd)��dash (debian)��bash ��ư��ǧ��ü�ʵ�ǽ�ϻȤäƤ��ʤ��Τǡ�ksh �Ǥ�ư��Ȼפ��֤󡣸�� bournce sh �Ǥ�ư��ʤ��Ϥ��Ȥ��񤷤��ȤϤ�äƤʤ��whitespace �ǥץ��񤯤�ꡢwhitespace ��¹Ԥ��ץ��äȥ��󥿥󡣤��Ⱦ��餤�κ�ȡ�brainfuck ��٤�Ȥ��ʤꡢ�Ȥ��bf �Υ��ץ뤵��٤�ȥ��ʣ��(��μ�Υͥ��ˤ��Ƥ��Ĥ��򰷤��롪)��ޤ��Ϥ��äƤ��礷��礭�ʸ��ǤϤʤ��Τǡ��¸�μ��ϰ��ڻ��Ȥ�� 塼�ȥꥢ��˽񤤤Ƥ��Ȥ��¤˼��Ȥ�� haskell �Ǥޤä��ɤ��Τǻ��ͤˤ��褦��ʤ��塼�ȥꥢ��Ǥ狼��ˤ��ʬ�򥵥�ץ륳��ɤ�ư��ʤ��Ĵ��١�

_ ��򡢥��֡��Ԥ�3��ʸ��Ȥ�ʤ��Ȥ��ʬ�Ϥ��Ƥ��ơ��ʤ󤫸��ͤ��͡��å��ͤ� push �� pop ��ơ��äƤΤ򷫤��֤��ʤ��ɡ��ä��̿��μ¹Ԥ�ɬ�פʰ��ϻ��ͤ򥹥��å��Ѥ�Ǥ��ơ�� pop ��Ƥ��Ф��ʤ��ǤϤʤ�̿��θ�˰��Τ�¿��ΰ��ǰ��򥹥��å��齦�äƤ��Τ�¿��ξ�Ժ��ߤ��Ƥ��Ƥ��㤰��㡣�ʤ�Ƹ��줷��͡��ɤ��Ѥˤʤ�ʤ��ͥ��ɤ��Ǥ⤤��ɤ��

2013ǯ8��30��(��)

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_ ��󡣤��Ƥ��Υ�� ^(*1)��į��Ƥ��顢
Aug 28 18:12:52 <daemon.info> eel nsd[94215]: client 72.13.58.93: query nytimes.com./IN/A +
��ʤΤ򸫤Ĥ��Ƥ��ޤä��ɡ��ʤ��٤��졣 New York Times ��äȤ�줿��˴�Ϣ��Ƥ�󤸤�ʤ��Ȼפ��ɡ��Ǥ⡢��˴�Ϣ��򤦤��Υ��Ф��ꤲ�Ƥ��ͳ��狼��
_ 28��18��Ȥ��ȡ��Ū�ˤϽ񤭴��Ƥ��ޤä��Ϥ��Ǥ��ᤵ��Ʋ��֤��Фä��å��Ϥޤ��ĤäƤ��ǽ��Τ褦��ʹ��Ƥ�� IP ��ɥ쥹�� nsdb.verisignlabs.com �ˤʤ��ǡ��ü��줿��򥭥�å��夷��ޤޤ��ʤ��Ĵ��Ƥޤ�äƤ��Τ��ʡ��Ȥ��Τ��äȤ⤢�ꤽ��ʿ�¬�ǤϤ��ɡ�UDP ��ʤΤ� IP ��ɥ쥹��Τ��Ƥ��ǽ��ʤ��Ϥʤ��ɡ��ΤǤϤʤ��ۤ�Ȥ� verisignlabs �ˤ��Ĵ��ʤΤ��Ȥ��顢��󥷥ǥ��ȯ��Ĵ��»ܤ˻��ޤǥեåȥ��ڤ��ʡ��53�֤��Ƥ�� IP ��ɥ쥹�Υꥹ�Ȥȡ��Υꥹ�Ȥ��Ф��ƥ��ꤲ��ץ��ब��Ǥ�¸�ߤ��Ƥ��ơ��ʥѥ�᡼��Ǥ��ĤǤ�ȯư�Ǥ��褦�ˤʤäƤ��ʡ��֤�

(*1): NSD �� ѥå��Ƥ��Ρ�

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_ ��GMO ��Υ�󻪲��äơ��ӥ��Ƥ��̤ä��Τ��Ҥ��硼��¿��Τǡ��¤ϥ֥��ɤ��㤦��ϤۤȤ��Ʊ��ʤ󤸤�ʤ��Ƥ��ɤɤ��ʤ�Ǥ��͡��Ĥޤꡢ��󹶷�򿩤�ä��Τϥ��ݤ��ä��褦��ɡ��ݰʳ��Ǥ�GMO ��ζ��ѥ�󻪥��ӥ��󶡤��Ƥ�Ȥ��Ǥ�Ʊ��ǽ��󤸤�ʤ��Ǥ��͡��к��Ƥ�Τ��͡�

_ �ɤ��Ǥ⤤��ɡ��Υ��ݥåפäơ�lollipop (��ڥ��ڥ��ǥ��Τ��)��ʤ��ơ�l ��ҤȤľ��ʤ� lolipop ��ä��Τ͡��ä��Ϥ��Ƶ��Ĥ��

2013ǯ8��31��(��)

�� befunge.sh

_ 8��äѤ��ڤǽ񤤤Ƥ��ȸ��Ƥ��ʸ��ޤ��äƤʤ��ƨ��դ��

_ �Ȥ��Ȥǡ� whitespace��³��ơ� befunge�Υ��󥿥ץ꥿�� sh �ǽ񤤤Ƥߤ�� ˤ��륵��ץ�ϡ��å��ˤʤäƤ��Ȥ��ͤ� pop ��Ƥ⡢��顼�ˤʤ餺�� 0 ��֤äƤ��뤳�Ȥ��ꤷ�Ƥ��Τ�¿��ġ��ͤʤΡ� õ��Ƥߤ��ǤϤ��ư��٤�Ū�ʵ��Ҥϸ��Ĥ��ʤ��ä��ɡ��ư��ʤ��ȥ��륵��ץ뤬��¿��餽��ʤ��ʤ��Ȥꤢ��٤��б��Ƥ��ɡ��ǤϤʤ��Τǥ��ꤹ�뤫�⡣

_ befunge �äơ�brainfuck �� whitespace ��٤�ȥޥ��ʡ��ɤ��⤷��͡��Ƥ��Υץ��Ϥդġ��ɤ�夫�鲼�˽��֤˲�ᡦ�¹Ԥ��뤱�ɡ�befunge �ˤ��Ϥʤ��岼��ư�� wikipedia�ˤ��ä� hello world ��㡣
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_ �� hello �Υ��ץ��ʸ��˴ޤޤ�� , �� ! ��̤ΰ�̣��̿��ˤ�Ȥ��Ȥ��ȥ�å��ʤ��Ȥ򤷤Ƥ��뤱�ɡ��Ȥ򤷤ʤ��Ȣ��ǤĤʤ��ե��㡼�Ȥ򤽤Τޤޥ��ɤ��Ȥ��褦�ʥ��᡼��ǽ񤱤�Τǡ�ȯ�ۤ��ä��ɤ��ۤ��񤷤��Ϥʤ��ʵ��롣

_ ��Ȥǡ�FizzBuzz ��񤤤Ƥߤ��fizz �� buzz ��ʸ��󤬥��ɾ��ɤߤ䤹��֤��褦�ˤ��ФäƤߤ��
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