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2013/08/23

Error: Unable to execute port: can't read "build.cmd"

| Error: Unable to execute port: can't read "build.cmd" - id:rx7(@namikawa)の技術メモ を含むブックマーク はてなブックマーク - Error: Unable to execute port: can't read "build.cmd" - id:rx7(@namikawa)の技術メモ Error: Unable to execute port: can't read "build.cmd" - id:rx7(@namikawa)の技術メモ のブックマークコメント

手元の環境を一新したついでに、Macportsに舞い戻ってみたのですが、パッケージのインストール時に以下のエラーが出る。

Error: Unable to execute port: can't read "build.cmd": Failed to locate 'make' in path: '/opt/local/bin:/opt/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin' or at its MacPorts configuration time location, did you move it?

こういう場合は、Xcodeを起動し、

[Xcode] - [Preferences] - [Download] - [Component]

から、"Command Line Tools"をインストールすべし。

トラックバック - http://tech.g.hatena.ne.jp/rx7/20130823

2013/08/20

トラックバック - http://tech.g.hatena.ne.jp/rx7/20130820

2013/08/12

Windowsでウインドウが画面外にあって移動させたいとき

| Windowsでウインドウが画面外にあって移動させたいとき - id:rx7(@namikawa)の技術メモ を含むブックマーク はてなブックマーク - Windowsでウインドウが画面外にあって移動させたいとき - id:rx7(@namikawa)の技術メモ Windowsでウインドウが画面外にあって移動させたいとき - id:rx7(@namikawa)の技術メモ のブックマークコメント

[Alt] + [Space]

キーを押した後に、

[M]

を押す!

あとは、表示領域の方へ矢印キーで移動させればOK。

トラックバック - http://tech.g.hatena.ne.jp/rx7/20130812

2013/08/02

arp_announce と arp_ignore

| arp_announce と arp_ignore - id:rx7(@namikawa)の技術メモ を含むブックマーク はてなブックマーク - arp_announce と arp_ignore - id:rx7(@namikawa)の技術メモ arp_announce と arp_ignore - id:rx7(@namikawa)の技術メモ のブックマークコメント

メモ。

arp_announce - INTEGER
	Define different restriction levels for announcing the local
	source IP address from IP packets in ARP requests sent on
	interface:
	0 - (default) Use any local address, configured on any interface
	1 - Try to avoid local addresses that are not in the target's
	subnet for this interface. This mode is useful when target
	hosts reachable via this interface require the source IP
	address in ARP requests to be part of their logical network
	configured on the receiving interface. When we generate the
	request we will check all our subnets that include the
	target IP and will preserve the source address if it is from
	such subnet. If there is no such subnet we select source
	address according to the rules for level 2.
	2 - Always use the best local address for this target.
	In this mode we ignore the source address in the IP packet
	and try to select local address that we prefer for talks with
	the target host. Such local address is selected by looking
	for primary IP addresses on all our subnets on the outgoing
	interface that include the target IP address. If no suitable
	local address is found we select the first local address
	we have on the outgoing interface or on all other interfaces,
	with the hope we will receive reply for our request and
	even sometimes no matter the source IP address we announce.

	The max value from conf/{all,interface}/arp_announce is used.

	Increasing the restriction level gives more chance for
	receiving answer from the resolved target while decreasing
	the level announces more valid sender's information.
arp_ignore - INTEGER
	Define different modes for sending replies in response to
	received ARP requests that resolve local target IP addresses:
	0 - (default): reply for any local target IP address, configured
	on any interface
	1 - reply only if the target IP address is local address
	configured on the incoming interface
	2 - reply only if the target IP address is local address
	configured on the incoming interface and both with the
	sender's IP address are part from same subnet on this interface
	3 - do not reply for local addresses configured with scope host,
	only resolutions for global and link addresses are replied
	4-7 - reserved
	8 - do not reply for all local addresses

	The max value from conf/{all,interface}/arp_ignore is used
	when ARP request is received on the {interface}
トラックバック - http://tech.g.hatena.ne.jp/rx7/20130802