What is posting?

Famous quotes containing the word posting:

“The man who says his evening prayer is a captain posting his sentinels. He can sleep.”
—Charles Baudelaire (1821–1867)

“My tea is nearly ready and the sun has left the sky;
It’s time to take the window to see Leerie going by;
For every night at tea-time and before you take your seat,
With lantern and with ladder he comes posting up the street.”
—Robert Louis Stevenson (1850–1894)