In this paper, by analyzing the principles of buffer overflow attacks, the array of border checkpoints and other methods to defend buffer overflow attacks.

该文通过分析缓冲区溢出攻击的原理，提出数组边界检查等方法来对缓冲区溢出攻击进行防御。

youdao

Under the plan, 120 federal police kept a 24-hour guard on a small commercial area close to the border. Checkpoints were positioned every 500m to inspect cars and keep an eye on racketeers.

这项计划调动了120位联邦警察对边境旁边的一小块商业区进行24小时全天候的守卫，每隔500米就有一个岗哨检查过往车辆并密切注意诈骗团伙。

youdao

The police in Afghanistan are accused of widespread corruption and are said to make money from bribes at checkpoints or at the border.

VOA: standard.2010.06.16

More than 90 South Koreans passed through checkpoints Saturday to cross the heavily armed border between North and South Korea, on their way to bittersweet reunions half a century in the making.

VOA: standard.2009.09.26

The governor of the Afghan province of Nangarhar said that several Pakistani border checkpoints were torn down just south of the Khyber Pass.

BBC: Second Afghan-Pakistan border clash in a week

Before September 11, most vehicles were waved through U.S. border checkpoints.

CNN: U.S. tracks heaviest border-crossing points

Uzbekistan has also unilaterally closed most border checkpoints with both upstream countries, set mines along parts of the boundary with Tajikistan, and often holds up commercial traffic.

ECONOMIST: Spats over control of water roil an already unstable region